Behavioral Science Flashcards
Who developed the doctrin of phrenology and what were the three contributions?
- well-developed trait, that part of the brain would expand and cause a buldge in head
- Measure psychological attributes by feeling the skull
- generate research on brain function
Franz Gall
Who was the first person to study the five functions of the brain and what was the one method he used?
Pierre Flourens
Exturpation (abalation) where various parts of the brain are removed and the consequences are observed. (specfic parts of brain have specific functions)
What was the one foundation William James formed and what does it study?
Functionalism: how mental processes help individuals adapt to their environment
What concept did John Dewey criticize and what was the one main belief?
Criticized the concept of reflex arc, which breaks the process of reacting to a stimulus into discrete parts
Psychology should focus on the study of organisms as a whole as they adapt to environment
What was Paul Broca’s two main contributions?
- Person to demonstrate that specific functional impairments could be linked with specific brain lesions.
- Found lesion in specific area of left brain and man was unable to speak, led to this area being called Broca’s lesion
What were the three main contributions from Hermann Von Helmholtz?
- first to measure the speed of a nerve impusle
- Related measured speed of inpulse to reaction time, providing a link between behavior and nervous system activity
- Transitions psychology out of realm of philosophy into natural science
What were Sir Charles Sherrington’s two contributions and which one was disproven?
- First inferred the existence of synapses
- Though synaptic transmission was an electrical process, but a chemical process
What are the two purposes of the meninges?
- Protect brain by keeping it anchored to the skull
- Resorb cerebrospinal fluid
What are the three layers of the meninges? (List in order from bone to brain)
- Dura mater
- Arachnoid Mater
- Pia Mater
What two brain structures form the brain stem?
Hindbrain and Midbrain
What are the five structures of the Forebrain (prosencephalon) and their functions?
- Cerebal Cortex: perceptual, cognitive, and behavioral processes
- Basal Ganglia: Movement
- Limbic System: Emotion and Memory
- Thalamus System: Sensory relay station except smell
- Hypothalamus: endocrine system, autonomic system, maintain homeostasis
What are the four divisions in the Hindbrain?
- Cerebellum: refined motor movements
- Medulla oblongata: heart, vital reflexes
- Reticular formation: Arousal and alertness
- Pons: Communciation within the brain (contains sensory/motor pathways between medulla and cortex), breathing
What are the two divisions in the Midbrain (mesencephalon)? Function?
- Inferior: receive sensory info from auditory system
- Superior: receive visual sensory input
During embryonic development, what are the two structures the hindbrain(rhombencephalon) divide into? What do these structures become?
- Mylencephalon: becomes the medulla oblongata
- Metencephalon: becomes the pons and cerebellum
During prenatal development, what are the two structures the presencephalon divide into? What do they form? One forms three structures and other forms 4
- Telencephalon: form cerebral cortex, basala ganglia, limbic system)
- Diencephalon: form thalamus, hypothalamus, posterior pituitary gland, pineal gland)
What is the main purpose of an electroencephalogram?
To study the electrical activity generated by large groups of neurons
What does regional cerebral blood flow measure? How? And what assumption does it make?
- Detects broad patterns of neural activity based on increased blood flow to different parts of brain. Use fMRI
- Assumes blood flow increases to regions of the breain that engage in cognitive function
What is a PET scan and what does it use?
It uses radioactive sugar and injects it into body. Uptake and dispersion in target tissue is observed
What are the three subdivisions of the hypothalamus and functions?
- Lateral Hypothalamus: Trigger eating a drinking
- Ventromedial hypothalamus: Provides signal to stop eating
- Anterior hypothalamus: control sexual behavior, sleep, body temp
What sends signal to posterior pituitary? What are the two hormones released?
Has axonal projections from the hypothalamus and releases Vasopressin and oxytocin
Where does the pineal gland receive its signals from and what does it regulate?
Receives direct signals from the retina and secretes melatonin to regulate sleep
What is the extrapyramidal system?
Gathers info about the body’s position and carries this info to the CNS
What are the 6 components of the Limbic system? Functions?
- Septal Nuclei: Pleasure center
- Amygdala: Attention/fear, help interpret facial expressionas, part of instrinsic memory for emotional memory
- Hipocampus: role in learning and memory processes. Form long-term explicit/epidsodic memories
- Prefrontal cortex: planning, expressing personality, making decisions (ventral media cortex: experiecing emotion/ventromedial preforntal cortex: controlling emotional responses from the amygdala to decision making)
- Thalamus: sensory processing
- Hypothalamus: release neuotrasmitters that affect mood and arousal
How does the hippocampus communicate with other portions of the limbic system?
Fornix
What is the main difference between anterograde and retrograde amnesia?
- Anterograde: not able to form new long-term memories
- Retrograde: Memory loss before injury
What are the four lobes of brain? Function?
- Frontal Lobe (blue)
- Parietal Lobe (pink)
- Occipital Lobe (purple)
- Temporal Lobe (green)
What is the main function of the prefrontal cortex? What does it communicate with?
- Manages executive function by supervising and directing the operations of other brain regions
- Communicates with reticular formation in the brainstem
Which part of the frontal cortex is associated with association area and which is associated with projection area?
Association Area: prefrontal
Projection Area: primary motor
What is the difference between association area and projection areas?
Association area is an area that integrates input from diverse regions of brain
Projection area preforms rudimentart perceptual and motor tasks
What is the primary function of the primary motor cortex?
Initiates voluntary motor movements by sending neural impulses down the spinal cord towards the muscles
Where is the somatosensory cortex located and what are the four types of signals it processes?
- Located in pareital lobe on the post central gyrus
- Area for incoming/processing sensory signals for touch, pressure, temperature, and pain
What is the main cortex within the occipital cortex?
Visual cortex (striate cortex)
What are the three regions/functions of the temporal lobe?
- Auditory cortex: sound processing, speech
- Wernicke’s area: language reception and comprehension
- Memory processing, emotion
How is the dominant hemisphere defined?
One that is more heavily stimulated during language reception and production?
What is the main difference between the dominant and nondominant hemisphere?
Dominant: more analytical/logic/language
nondominant: emotions, faces, spatial processing, creativity, music cognition
What is the one difference between ipsilaterally and contralaterally?
ipsilaterally: same side
contralaterally: opposite side
What are the three catecholamines?
- Epinephrine
- norepinephrine
- dopamine
What is the main difference between neuromodulators and neurotransmitters?
Neuromodulators are slow and longer effects on postsynaptic cells than neurotransmitters
What is an endorphin?
A neuromodulator that is a natural pain killer
What connects the hypothalamus and the pituitary gland?
Hypophyseal portal system
What are the two parts of the adrenal gland and their functions?
- Adrenal medulla: releases epinephrine and norepinephrine
- Adrenal cortex: produces corticosteroids, such as cortisol. Produce testosterone and estrogen
What are the two parts of the pituitary gland and which one releases hormones?
- Anterior and posterior
- Anterior
Define condordance rates in twin studies
Likelihood that bother twins exhibit the same trait
What does the development of the nervous system start with?
Neurulation
What are the two structures within the Neural tube?
- Alar plate: differentiates into sensory neurons
- Basal plate: differenitates into motor neurons
What are the four primitive reflexes and corresponding behavior?
- Rooting: turns head towards direction of any objects touching the cheek
- Moro: in response to sudden head movement, arms extent and slowly retract, baby cries
- Babinski: extension of big tow and fanning of other toes in response to brushing the sole of foot
- Grasping: holding onto any object placed in hand
What are the two themes of the stages of motor development?
- gross motor development progress in a head-to-toe fashion
- Skills develope at the core prior to extremities
What two hormones are produced by the adrenal glands?
estrogen and testosterone
What is the neural groove surrounded by and what are the two structures that arise from the neural groove?
- Neural folds
- Neural crest and neural tube
What is the one difference between distal stimuli and proximal stimuli?
Distal are the physical objects and proximal are the sensory stimulating byproducts that directly interact with sensory receptors
What are two characteristics of ganglia?
- Collection of neuron cell bodies
- Found outside the CNS
Define subliminal perception
Infor received by CNS that does not cross threshold
What are the three observations of Weber’s Law?
- Difference threshold are proportional
- Difference thresholds must be computed as percentages
- proportion is constant over most of the range of possible stimuli
What is the one concept Signal Detection Theory studies?
how internal (psychological) and external (environmental) factors influence thresholds for perception and sensation
allows us to look at response bias
What is the five step pathway for stimulus to reach conscious perception?
- Sensory receptor
- Afferent neuron
- Sensory Ganglion
- Spinal Cord
- Brain (projection area)
What is the one difference between noise trails and catch trials?
Noise: signal presented
Catch: no signal presented
What are the 4 possible outcomes for a signal detection experiment trial?
- Hit: Signal presented–> “Yes”
- Miss: Signal presented –> “No”
- False Alarm: Signal Absent—> “Yes”
- Correct Negative: Signal Absent–> “No”
What are the two types of vessels that supply the eye with nutrients?
- Choroidal Vessels: intermingling of blood vessels between the sclera and retina
- Retinal Vessels
What are the two purposes of the cornea?
- light passes through
- gathers/focuses the incoming light
What are the two chambers of the eye?
- Anterior: in front of the iris
- Posterior: btw the iris and lens
What are the two muscles of the iris?
- Dilator pupillae
- Constrictor pupillae
What are three characteristics of the choroid?
- continuous with iris
- vascular layer of connective tissue
- provides nutrishment to retina
What are the two structures that are continuous with the iris?
- Choroid
- Ciliary body
What is the one function of the ciliary body?
1.Produces the aqueous humor that bathes the front part of the eye
Where does the aquerous humor drain into?
canal of schlemn
What is the primary function of the sclera (white of eye)?
provides structural support
What two events happen with the ciliary muscles contract?
- Pulls the suspensory ligaments
- Change shape of the lens to focus on an image (accommadation)
What is the transparent gel that supports the retina and lies behind the lens?
Vitreous Humor
What does the duplexity theory of vision state?
retina contains two kinds of photoreceptors:
- light-and-dark detection: rod
- specialized color detection: cones
What are three difference between cons and rods?
- Cones are more effective in bright color and come in three forms (short, medium, long), rods have reduced illumination
- rods are more functional than cones because each rod is highly sensitive to photons and easier to stimulate
- rods are not good at detecting fine detail because spread over larger area of retina
What is the one pigment that all rods contain?
rhodopsin
What is the central section of the retina called? Does it have a high concentration of cones or rods?
macula
cones
What is the center most region of the macula called? How does the concentration of cones and rods change as you expand out from fovea?
fovea
concentration of cones decreases, rods decrease
What are the 11 steps in the visual pathway for light from the cornea to the brain?
- Cornea
- Pupil
- Len
- Vitreous
- retina (bipolar cells –>ganglion cells)
- optic nerve
- optic chiasm
8: optic tract - LGN
- radiation through temporal and pariental lobes
- visual cortex
What is one reason why color vision has greater sensitivity to fine detal than balck-and-white vision does?
the number of cones converging onto ganglion cells is smaller than for rods
What are two purposes of the amacrine and horizontal cells?
- receive input from multiple retinal cells in the same area through bipolar cells before passed to ganglion cells
- increase our perception of contrast/edge detection because they can accentuate slight differences btw visual info from each bipolar cell
What is the optic chiasm? Purpose?
- fibers from the nasal half of each retina cross paths. the temporal fibers do not cross
- All fibers corresponding to right visual field from both eyes go to the left side of brain vise versa
What is the pathway called after the optic chiasm?
optic tracts: reorganized pathwat after optic chiasm
What is one function of the superior colliculus in vision?
controls some reflexive response to visual stimuli and reflex eye movt
What are two characteristics of parvocellular cells in LGN?
- high spatial resolution: detect fine detail when examining an object/its boundaries (form)
- low temporal resolution: can only work with stationary or slow moving objects
What are the three characteristics of magnocellular cells in LGN?
- high temporal resolution (detect motion)
- receive info from periphery of vision
- low spatial resolution
What is the primary purpose of binocular neurons?
responsible for comparing the inputs from both eyes/hemispheres and detecting differences –> detect depth
what is the primary purpose of feature detectors in visual cortex?
detect specific feature/associate dertain patterns with expected behavior/outcomes (store info)–> all act in parallel
What is the main function of the pinna/auricle?
to channel sound waves into the external auditory canal
What is the main purpose of the external auditory canal?
directs sound waves into the tympanic membrane
What are the three smallest bones in the body and where are they located?
- ossicle
- in the middle ear
How is the middle ear connected to the inner ear? Purpose of structure?
eustachain tube: equalize pressure between the middle ear and environment
What 2 traits of the membranous labyrinth?
- receptors that sense equilibrium and hearing
- has potassium rich fluid (endolymph)
What are the two purposes of the perilymph?
- transmits vibrations from outside world
- Cushions the inner ear
The two traits of the round window?
- membrane covered hole in the cochlea
- permits the perilymph to move within the cochlea
What are the two structures in the vestibule in bony labyrinth? Functions?
- utricle and saccule (contain modified hair cells called otoliths)
- sensitive to linear acceleration–> used as a balancing apparatus and to determine orientation
What is sensitive to rotational acceleration? How are they structured?
- three semi-circular canals
- arranged perpendiculary to each other and each ends in a swelling called an ampulla (where hair cells are located)
What are the structures/order of the auditory pathway?
- Pinna
- External auditory canal
- tympanic membrane
- Malleus
- incus
- stapes
- oval window
- perilymph in cochlea
- basilar membrane
- hair cells
- Vestibulocohlear
- brainstem
- MGN
- auditory cortex (temporal lobe)/superior olive (localizes sound)/ inferior colliculus (startle reflex and helps keep eyes fixed)
How is the basilar membrane organized?
highest freq pitch cause it to vibrate close to oval window
low freq pitch cause vibrations at the apex
(tonotopically organized)
What is the 6 step pathway of the olfactory pathway?
- Nostril
- Nasal Cavity
- olfactory chemoreceptors (olfactory nerves) on olfactory epithelium
- olfactory bulb
- olfactory tract
- higher-order brain regions (limbic system)
Where are tastebuds found?
papillae
What are the 4 different modalities of somatosensation?
- pressure
- vibration
- pain
- tempature
What are the five different receptors of somatosensation in dermis?
- Pacinian corpuscles: respond to deep pressure and vibration
- Meissner corpuscles: respond to light touch
- Merkel cells: respond to deep pressure and texture
- Ruffini endings: respond to stretch
- Free nerve endings: respond to pain and temp
Define two-point threshold
refers to the minimum distance necessary btw two points of stimulation on the skin such that the points will be felt as two distinct stimuli
(depends on density of nerves)
Define physiological zero?
the normal temp of skin
Define the gate theory of pain?
gating mechanism can turn pain signals on and off, affecting wether or not we perceive pain
Define kinesthetic sense (proprioception). Where are proprioceptors mostly found?
- the ability to tell where one’s body is in space
- muscle and joints (hand-eye coordination/balance/mobility)
What is the difference between Bottom-up and Top-down processing?
Top-Down is driven by memories and expectations that allow brain to recognize the object and its components. Start with whole object and through memories, create expectations for the features of the object
Bottom-Up refers to object recognition by parallel processing and feature detection, then integrated into one whole image
What are the two visual cues depth perception relies on?
Monocular: only require one eye
Binocular cues: require both eyes
What are the four main factors that make up monocular cues?
- Relative size: objects appear larger the closer they are
- Interposition: when two objects overlap, the one in front is closer
- Linear perspective: the convergence of parallel lines at a distance… the greater the convergence, the further they are
- Motion parallas: the objects closer to use seem to move faster when we look somewhere else
What are the two factors that make up binocular cues?
- Retinal disparity: the slight differences in image projects on the two retinas
- Convergence: the brain detects the angle between the two eyes required to bring an object into focus–> the difference in the degree of convergence is used to perceive distance
Define constancy?
the ability to perceive that certain characteristics of an object remain the same, despite changes in environment
What are the 6 Gestalt principles?
- Law of proximity: elements close to one another tend to be perceived as a unit
- law of similarity: objects that ar similar appear to be grouped together
- law of good continuation: elements that appear to follow the sma pathway tend to be group together
- Subjective contours: the perception of nonexistent edges in figures, based on surrounding visual cues
- law of closure: when a space is enclosed by a group of lines, it is perceived as a complete or closed line
- law of prägnaz: perceptual organization will always be as regular, simple, and symmetric as possible
all allow the brain to infer missing parts of a picture
What three structures support the eye?
Inside: Virteous
Outside: sclera and choroid
What three structures make up the outer ear?
- Pinna
- external auditory canal
- Tympanic membrane
How is the middle ear connects to the nasal cavity?
Eustachian tube
What are the bony labyrinth and the membranous labyrinth filled with?
bony labyrinth: perilymph
membranous labyrinth: endolymph
Define dishabituation?
recovery of a response to a stimulus after habituation
What is generalization and what is the opposite of generalization?
- Stimuli similar to each other will ellicit similar reponse
- Discrimination
What are the two categories negative reinforcement can be divided into?
- Escape Learning: experience unpleasant stimulus and display desired behavior to remove stimulus
- Avoidance Learning: show desired behavior in anticipation of the unpleasant stimulus to avoid unpleasant stimulus
What is the differene between primary reinforcer, secondary reinforcer. discriminative stimulus?
- Primary: reinforcer respond to naturally
- Secondary: conditioned reinforcer
- indicate reward is potentially available
Ex: Dolphin and trainer
What is another name for positive punishment?
aversive conditioning
Which reinforcement schedule works the fastest and is most resistent to extinction?
variable-ratio
What is shaping?
process odf rewarding increasingly specific behaviors that become closer to a disired response
Define latent learning? What is an example?
learning that occurs without the reward but is spontaneously demonstrated once a reward is introduced
Ex: rats that were carried through maze and then incentivized with food reward for completeing it preformed just as well as the rats that ran through the maze using operate conditioning
What is preparedness?
Animals are able to learn behavior that coincide with their natural behaviors
What is instictive drift?
when animals revert to their instinctive behavior after learning a new behavior that is similar
What are mirror neurons and where are they located?
- involved in motor processes/epathy and cicarious emotions
- play a role in imitative learning
- located in frontal and parietal lobes
What is encoding?
putting new info into memory
What is the difference between autonomic processing and controlled processing?
Autonomic: info gained without any effort
controlled: active memorization
What are the four different types of encoding?
- Acoustic
- Visual
- Elaborative: link to knoledge that is already in memory
- Semantic: put into a meaningful context (self-reference effect)
What is Mnemonic and what are three examples?
memorize info (particulary lists)
- method of loci: associating item in a list with a location
- peg-word: associate numbers with items that rhyme with or resemble the number
- chuncking: taking elements from a list and grouping them together
Define sensory memory and what are the two subgroups? Is it short term memory yet?
preserve info in sensory form/high accuracy but lasts short amount of time
- iconic memory: fast-decaying memory of visual stimuli
- echoic memory: fast decay memory of auditory stimuli
ex: this is tested in partial report procedures
NO
How can the capcaity of short term memory be increased?
- clustering
- maintenance rehearsal
What is our memory capacity?
the number of items we can hold in our short-term memory
around 7 items
Where is short-term memory housed?
hippocampus –> consolidation of short term to long term memory
What is working memory?
Allows us to keep a few peices of info in our consciounesness simultaneously and to manipulate that info. Must integrate short-term memory, attention and executive function
How is long-term memory consolidated?
elaborative rehearsal –> tied to self-reference and is controlled by hippocampus but are mvoed overtime to cerebral cortex
What are the two types of long-term memory?
- Implicit memory (non-declarative memory): consists of our skills, habits, and conditioned reponses. Includes procedural memory, which is our unconscious memory of skills required for a task, and priming. which is the presentation of a stimulus which will impact the perception of another
- Explicit memory (declarative memory): require conscious recall. Include episodic memory (recollection of life experiences) and semantic memory (ideas, concepts, and facts that we know but are not tied to life experiences)
What is autobiographic memory? What type of long-term memory is it?
are explicit memories of our lives and include all of our episodic memories of our life experiences
What is the difference between negative and positive priming?
positive: exposure to stimulus improves the processing of second stimulus
negative: first stimulis interfers with processing of second
What is the spacing effect?
longer amount of time between sessions of relearning, leads to greater retention of info
How is semantic network, spreading activation, and positive priming related?
Our brain is organized into a semantic network (organized by similar meaning). When one node of semantic network is activated other linked concepts are unconciously activated (spreading activation). Like positive primary, you are exposed to a recall cue.
What is the context effect?
memory is aided by being in a physical location when encoding took place
What is source monitoring?
determining the origin of memories, and whether they are factual or fiction (dream)
What is state-dependent memories/state-depedent effect?
retrieval cue based on preforming better when in the same mental state when encoded
What is serial-position effect? And what are its two components?
item’s position in list affect ability to recall
- primacy effect: first items
- recency effect: last items–> hard to recall later on, might have been able to retrieve initially bc were stuck in short-term memory
What is sundowning?
increase dysfunction for Alzheimer patients in late afternoon and evening
What are four traits of Korsakoff’s syndrome?
- retrograde amnesia
- anterograde amnesia
- thiamine deficiency in brain
- confabulation:creating vivid and fabricated memories
What is agnosia?
loss of the ability to recognize objectsw, people, or sounds from primarly physical damage to brain
What is a common reason for memory loss? What are it’s two subdivisions?
Interference: retrieval error caused by similar info
- Active interference: old info is interfering with new
- Retroactive interference: new info cause forgetting of old info
1.
What is the misinformation effect and how does it influence reproductive memory?
recall of a person’s memory becomes less accurate when inject outside info into memory
What are two errors that occur to cause reconstructive memory?
- Intrusion error: false memories that have included a false detail into a particular memory. Instrusion is from another memory that is very similar to original memory because they share a theme.
- Source-monitoring error: confusion between semantic and episodic memory. Person remembers the details of an event, but confused the context under which those details were gained.
What are three modes to encode info and list them from strongest to weakest?
- Semantic
- acoustic
- visual
What is the difference between maitenance rehearsal and elaborative rehearsal?
- Maintenance is repetition of info to keep in short-terp and elaborative is association of info to other stored knowledge and more effective to store short term as long term
How are facts stored and how are they retrieved
- semantic network
- priming
What is the difference btw synaptic pruning and LTP?
- weak neural connections are broken in synaptic pruning
- strengthing memory of connection through increase activity (LTP)
What is dual-coding theory?
both verbal association and visual images are used to process and store information
What are the 4 key points of the information processing model?
- thinking requires sensation–>encoding–>storage of stimuli
- Stimuli must be analyzed by the brain to be useful in decision making
- Decisions made in one situation can be extrapolated and adjusted to help solve new problems
- problem solving is dependent on a person’s cognitive level, and context/complexity of problem
How does Paiget theorize new info is processed? What are two complementary processes?
- Adaptation
- Assimalation: putting new info into existing schema
- Accommodation: existing schema are modified to encompass new info
What are the 4 stages of Paiget’s stages of cognitive development?
- Sensorimotor stage (birth to 20: child learns to manipulate his or her environment to meet physical needs and learns to coordinate sensory input with motor actions. Ends with object permanance
- Preoperation stage (2-7): symbolic thinking(ability to pretend, have an imagination) and egocentrism (inability to imagine what another person is thinking or feeling). Lack conservation(amount remains the same even if there is a change in shape or appearence)
- Concrete operational stage (7-11): children can understand conservation and perspectives of others/ engage in logical thought
- Fromal operational stage (starts at 11): think logically about abstract things/ reason about abstract concepts and problem solve. Hypothetical reasoning: mentally manipulate variables)
What are two types of behavior in sensorimotor stage abnd what ends the sensorimotor stage?
- Exhibit primary circular reactions (repetitions of body movement that orginally occured by chance)
- secondary circular reactions (manipulation is focused on somthing outside the body).
Object permanence ends this stage because they begin to understand that objects continue to exists even when out of view. This marks the beginning of representational though (child begins to creat mental representations of external objects and events)
What falw in cognition may cause the lack of conservation?
centration: tendency to focu on only one aspect and ignore other important elements
What was Lev Vygotsky’s many theory?
a child’s internalization of his or her culture drives cognitive development
What are the two sub categories intellengence can be divided into?
- FLuid intelligenceL: solving new problems using creative methods
(peak in adult hood and decline with age)
- CrystallizedL: solving problems using acquired knowledge and can be procedural (peak in middle adulthood and remains stable with age)
What is delirium?
confused thinking, reduced awareness
What is the difference between deductibe reasoning (top-down) and inductive reasoning (bottum-up)
- Deductive: starts with rules and draw conclusions from info given (ex: logic puzzels)
- Inductive: create a theory via generalization (start with specific instances and draw conclusions)
What are heuristics and what are the two branched?
simplified principles to make decisions (“rules of thumb”)
- Availability heuristic: base likelihood of an event on how easily examples of event come to bind (are there more works in english that start or end with k?
- Representativeness heuristic: categorizing items on the basis of whether they fit the prototypical, stereotypical, or representative image of the category
What is base rate fallacy? What can lead to this?
using prototypical or stereotypical factors while ignoring actualy numerical information–> heuristics can lead to this?
Define disconfirmation principle?
evidence obtained from testing shows the solution does not work?
What is conformation bias and what three things can this lead to?
- tendency to focus on information that fits a belief, while rejecting information that goes against it
- This contributes to overconfidence” tendecy to wrongly interpret one’s decisions, knowledge, and beliefs as infallible
- Hindsight bias: tendecy for people to overestimate their ability to predict the outcome of events that already happened
- Belief perseverence: inability to reject a belief despite clear evidence against it
What is functional fixedness?
the tendency to use objects only in the way they are normally utilized, which may create barriers to problem solving
What is a mental set?
pattern to approach a given problem
What is intuition and how does it relate to recognition-primed decision model?
- the ability to act on perceptions that may not be suported by evidence
- Through the use of acquired knowledge sort through info to match a pattern
What are the eight defined types of intelligence in the theory of multiple intelligence?
- linguistic
- logical-methematical
- musicle
- visual-spatial
- bodily-kinesthetic
- interpersonal: ability to detect and navigate the moods and motivations of other
- intrapersonal: mindful of one’s own emotions, strengths, and weaknesses
- naturalists
What are the three subtypes of Sternberg’s triarchic theory?
- Analytical intelligence: ability to evaluate and reason
- creative intelligence: ability to solve problems using novel methods
- practical intelligence: dealing with everyday problems at home/work
What are the four components of emotional intellegence?
- ability to express and perceive emotions in ourself and others
- ability to comprehend and anaylze our emotions
- ability to regulate our emotions
- awareness of hor emotions shape our thoughts and decisions
How is alertness maintained?
the prefrontal cortex communicates with the reticular formation (a neural structure located in the brainstem, to keep cortex awake and alert
What are the three difference between beta and alpha wave?
- beta are high freq and alpha are slower
- beta occur when a person is alert or attending a task that requires concetration. Alpha occur when a person is awake but relaxing with eyes closed
- Beta are more randomly firing and alpha are more synchronized
What are the six stages of sleep-wake cycle?
- Awake: beta and alpha waves
- Stage 1: NREM1: theta waves (irregular wave forms with slow freq and high voltages)–> light sleeping and dozing
- Stage 2: NREM2: theta waves with sleep spindles (bursts of high freq waves) and K complexes (singular high-amplitude waves)
- Stage 3:NREM3: known as slow-wave sleep–> delta waves (low freq but high voltage waves) –> dreams, declarative memory consolidation, sleep-wake disorders occur here
- Stage 4: delta, slow-wave sleep, dreams, declarative memory consolidation, sleep-wake disorders occur here
- REM (Paradoxical sleep): mostly beta wave, ones heart rate, breathing patterns, EEG mimic wakefullness –> dreaming most likely to occur, procedural memory consolidation, body is paralyzed
Besides melatonin being released from the pineal gland, what other hormone is involved in the sleep-wake cycle?
cortisol–> steroid hormone released from adrenal cortex and increases in the morning
increasing light increases the release of CRF from hypothalmus and causes the release of ACTH from anterior pituitary gland which stimulated cortisol release
What is the activation-synthesis theory?
dreams are caused by widespread, random activation of neural circuitry. This activation can mimic incoming sensory info and consist of sotred memories, desires, needs, experiences. Cortext stitches this unrelated info together to form a dream
What is the problem-solving dream theory?
dreams are a way to solve problems while sleeping. Dreams do not need to follow rules so can interpret obstacles differently
What is cognitive process dream theory?
dreams are the sleeping counterpart of stream of consciousness
What does the neurocognitive models of dreaming try to do?
unify biological and psychological perspectives on dreaming by correlating the subjective, cognitive experience of dreaming with measurable physiological changes. unify mind and brain
What is the difference between dyssomnias and parasomnias?
dyssomnias: disorders that make it difficult to sleep
parasomnias: abnormal movements or behaviors during sleep
What are the symptoms of narcolepsy called?
cataplexy: loss of muscle control and sudden intrusion of REM sleep during waking hours
What are hyponagogic and hypnopompic hallucinations?
hallucinations when going to sleep or awakening
What is another name for sleepwalking?
somnambulism
What is one thing that happens to sleep cycle after sleep deprivation?
exhibit REM rebound, earlier onset and greater duration of REM sleep
What type of sleep waves are shown during …
Night terrors
meditation
- slow-wave sleep
- stage 1 with theta and slow alpha waves
What are four events that happen when someone drink’s alcohol?
- increase activity of GABAR, hyperpolarization
- disinhibition
- increase dopamine levels
- Alcohol myopia: inability to recognize consequences of actions
What are two types of sedatives?
- Barbiturates: anxiety-reducing and sleep medications
- Benzodiazepines: less prone to overdose than barbiturates
both increase GABA (increase relaxation)–> additive
What are 4 characteristics of amphetamines?
- increase release of dopamine, norepinephrine, serotonin
decrease reuptake
- increase in arousal and reduction in appetite/need for sleep
- increase in HR and BP
What do opiods cause?
Can cause respiratory depression because bind to opiod receptors in PNS and CNS and act as endorphin agonists, casuing a decreased reaction to pain and sense of euphoria
What are the three effects of marijuana?
1.Stimulant, depressant, hallucinogen
(increase dopamine activity, decrease GABA activity)
What is one dopaminergic pathway associated with drug addiction?
mesolimbic reqward pathway: includes NAc, ventral tegmental areas (VTA), connect between them called the medial forebrain bundle (MFB)–> reward pathway to encourage positive reinforcment
What is a dichotic listening test and what does it test?
stimuli is going to both ears and they are ask to repeat what they heard in attended ear through shadowing
this testins for selective attention
What is the difference between selective and divided attention?
Selective attention: filter permits us to focus on one set of stimuli while scanning other stimuli in the background (cocktail party effect)
Divided attention: ability to rpeform multiple tasks at the same time. New complec tasks require controlled (effortful) processing–> maintain undivided attention on task and autonomic processing –> used for less critical stimuli in divided attention and is used for familiar and repetitive actions
What is phonology?
sound of language
What is categorical perception?
language has subtle difference in speech that represent a change in meaning
What is constancy?
ability to recognize a word as being the same even if the pronunciations varies
What is Morphology?
the structure of words. words are composed of morphemes
What does semantics refer to?
association of meaning with word
What is syntax?
how words are put together to form sentences
What does pragmatics?
dependence of language on context and preexisting knowledge (prosdy: the inflection in your voice)/ the way you speak to different audiences
What is naming explosion and when does it usually start?
the child quickly learns dozens of words and uses each word with varying inflections and gestures
starts around 18 months
What is overextension and what is it usually paired with?
- a child inappropriately apply a term to an object thats bears similarities to the term
- paried with naming explosion
What is errors of growth and when does it usually begin?
- a child applies a grammatical rule of grammar where it does not apply
- begins around 2-3 years
What are four points that the nativist (biological) theory argue?
- innate capacity for language
- transformation grammar (changes in word order that retain the same meaning) happens effortlessly
- innate ability is called language acquisition device (LAD) (a theoretical pathway in the brain that allows infants to process and absorb language rules)
- critical period of language acquisition is btw 2yr-pubertyn and if no exposure occurs during this time it is hard to train later
Chomsky
How is the sensitive period different from critical period?
- time when environmental input has max effect on language development
- learning language beyond this time is not impossible
What are three points of the learning (behaviorist) theory?
- language acquisition through reinforcement/operant conditioning
- parents and caregivers repeat and reinforce sounds that sound most like the language spoken by the parents
- but theory cannot fully explain explosion in vocab that occurs in early childhood
Skinner
What are two points to the interactionist theory?
- language development focuses on the interplay btw biological and social processes
- language acquisition is driven by child’s desire to communicate and behave in social manner
What is the Whorfian hypothesis (linguistic relativity hypothesis)?
our perception of reality is determined by the content of language (language affects the way we think
-expansive framework with more specific voab allows for more sophisticated processing
What are the two regions that are responsible for speech production and language? What hemisphere are they located in?
Broca’s area (inferior frontal gyrus of frontal lobe): controls motor function of speech with connections to motor cortex
Wernicke’s area (superior temporay gyrus of the temporal): responsible for language comprehension
left hemisphere
How are Wernicke’s area and Broca’s area connected?
arcuate fasciculus: bundle of axons that allows appropriate association between language comprehension and speech production
What is aphasia? What are the three types?
is a deficit of language production or comprehension
- Broca’s (expressive) aphasia: have speech comprehension but reduced or absent ability to produce spoken language. generating each word requires effort/difficulty producing language
- Wernicke’s (receptive) aphasia; comprehension is lost but motor production and fluency of speech is retained (nonsesical sounds)
- conduction aphasia: if the arcuate fasciculus is affected (patient is unable to repeat something that has been said bc the connection btw these regions is lost). intact speach production and comprehension
What are the five milestones of language development?
- 9-12 months: babbling
- 12-18 months; increase of one word per month
- 18-20 months: “explosion of language” and combining words (two word sentences)
- 2-3 years: longer sentences of three or more words
- 5 years: language rules largely mastered
What is the difference between entrinsic and intrinsic motivation?
- entrinsic: working hard for a desired reward or to avioid punishment
- intrinsic: comes from within one’s self that is driven by interest or enjoyment
What is the primary idea of instinct theory?
certain behaviors are based on evolutionary programmed instincts
What is the main idea of arousal theory? What is the Yerkes-Dodson Law?
- people perform actions in order to maintain an optimal level of arousal –> seeking to inccrease arousal when it falls
- The law postualtes a U shaped function between the level of arousal and performance (performance is worse at extremely high and low levels of arousal)
What is the difference between primary drives and secondary drives?
- Primary drives: need for food, water, warmth to ensure homeostasis
- Secondary drives: not directly realted to biological functions. The drive to succeed
What is the drive reduction theory?
Explains that motivation is based on the goal of eliminating uncomfortable states
Drives: internal states of tension or discomfort that can be relieved with an action
What are the five main themes of Maslow’s hierarchy of needs?
(Bases of pyriamid)Physiological needs –> safety–> love/belonging –> esteem–> self actualization (morality/problem solving/ realize one’s fullest potential)
-need to satisfy lowest needs to meet higher ones
What is the main idea of self-determination theory?
emphasizes the role of three universal needs: autonomy; the needs to be in control of one’s actions and ideas; competence; the need to complete and excel at difficult tasks; and relatedness, the need to feel accepted and wanted in relatioships
What is the main idea of Expectancy-value theory?
the amount of motivation needed to reach a goal is the result of both the individual’s expectations of success in reaching the goal and the degree to which he or she values succeeding at the goal
What is two main ideas of opponent-process theory?
-when a drug is taken repeatedly, the body will attempt to counteract the effects of the drug by changing its physiology
(counteract a depressant like alcohol through arousal)
-can lead to withdraw and tolerance–> decrease in perceived effect of drug overtime
What is the main idea of incentive theory?
motivation as the desire to purseu rewards and avoid punishments
What are the three elements to emotion?
1, Physiological response: arousal leads to stimulation of autonomic nervous system
- Behavioral response:facial expressions/body language
- Cognitive response: subjective interpretation of feeling, subjective interpretation, memories of past experiences, perception of causes of emotions
What are the seven universal emotions?
- Happiness
- Sadness
- Contempt
- Surprise
- Fear
- Disgust
- Anger