Psych Flashcards
What do parvocellular neurons specialize in?
parvocellular neurons specialize in picking up details (spatial resolution)
not great at detecting motion
What are hallucinogens?
drugs that distort perceptions, enhance sensations, and promote introspection
What is paternalism?
a pattern found with physicians who provide the treatment they believes is best without regard for the patient’s desires.
Like how parents make decisions on their children’s behalf, without necessarily giving them background information
What is representativeness heuristic?
Comparing people or groups to a prototypical example
estimating the likelihood of an event by comparing it to an existing prototype that already exists in our minds.
what’s typical
What is stage 2 of non-REM sleep?
- theta waves
- eye motion stops
- heart rate & breathing slow down
- memory consolidation
- k-complexes and sleed spindles
- bursts of activities
- k-complexes and sleed spindles
What is the function of the thalamus?
acts as a relay for information traveling through the brain and helping it get to where it needs to go
Where are magnocellular neurons and parvocellular neurons located?
the lateral geniculate nucleus
What is the function of ossicles in the ear?
ossicles amplify the vibrations of the tympanic membrane
What is the elaboration likelihood model?
focuses on attitude change and the factors that tend to promote it.
This model theorizes that a message may be processed either peripherally (shallowly) or centrally (in a more thorough manner).
Central processing tends to have a more long-lasting effects than peripheral processing, although both can alter attitude at least temporarily
What is the cocktail party effect?
The idea that we can “tune in” to a particular stimulus, like a name being said from across the room
background information is being processed to some degree even if its not the center of focus
What is a positive symptom?
positive symptoms are defined by their “presence” – an addition
What is a latent function?
Latent functions are those that are not specifically intended to occur. unconcious, unintended, and beneficial
What is social exchange theory?
individuals ground relationship decisions in their evaluation of the costs and benefits of maintaining each relationship
What is Neuropeptide Y?
A hormone that increases hunger
What is social-desirability bias?
the tendency for a study participant to alter their responses or selectively respond to a study questionnaire with responses that they think will make the experimenter like them more
Through what neural mechanism does caffeine work?
A mild central nervous system stimulant
promotes alertness by blocking adenosine receptors (a compound in the brain which promotes drowsiness)
What is an in-group?
categories that someone identifies as a member of
What muscle causes our pupils to dilate in response to a stimulus that triggers the fight or flight response?
pupillae muscle
What are 4 features of barbiturates and benzodiazepines?
- depressants
- increase GABA receptor activity (inhibitory neurons)
- treat anxiety and insomnia
- high risk of overdose, addiction, and withdrawal dangers
What is signal detection theory?
a means to measure the ability to differentiate between information-bearing patterns and random patterns that distract from the information
For example, if you are incredibly focused on driving your car you might notice road hazards even if they present at a relatively low intensity. However, if you are sleepily driving your car, then a road hazard may need to present itself at a much higher intensity for your brain to correctly detect it and produce a “hit”
What is parallel processing?
The act of integrating multiple inputs (color, shape, motion, etc.) spontaenously
What is the major function of the enteric nervous system?
regulates activity of the gut
What is primary appraisal?
Cognitive appraisal of stress consists of two stages: primary and secondary
During primary appraisal, the person analyzes the potential stressor along with the surrounding environment to determine whether it represents a threat
A loss/decrease of what neurotransmitter leads to Parkinson’s disease?
Dopamine
What is the purpose of rhodopsin in the eye?
Rhodopsin are found in the rods of the eyes (along the retine) and they are pigment that responds to light and begins the process of phototrasnduction
What is a direct hormone?
any hormone that stimulates any cellular function in a target cell aside from hormone production
In psychology, what is the term affect used to describe?
affect is used to describe emotions
What is the difference between controlled processing and automatic processing?
Controlled processing: conscious focus on a task (often required of new skills)
Automatic processing: unconscious work on a task – doing things on autopilot
What are 4 areas that are regulated by the neurotransmitter, serotonin?
- mood
- appeptite
- sleep
- intestinal movements
What is the difference between bipolar disorder 1 and bipolar disorder 2?
Bipolar disorder 1 us characterized by the presence of at least one manic episode with or without depression (mania based)
Bipolar disorder 2 is characterized by the presence of major depression plus hypomania (depression based)
What is the treisman model of selective attention?
A modification of the Donald Broadbent model
Instead of information passing through an all or nothing buffer –
- unattended information is attenuated (reduced in intensity)
- intense or important information can come to attention
- This model explains the cocktail party effect
What is a cohort study?
a subset of longitudinal studies,
in which a group of subjects is assembled according to some organizing principle - such as age or location - and followed up over time
What is heuristics?
problem solving methods and mental shortcuts
What are qualities of intrinsic motivation?
Intrinsic motivation is the act of doing something without any obvious external rewards
things that increase our sense of independence and autonomy help increase our intrinsic motivation
Why are we able to multitask two+ distinct tasks reasonably well but struggle when multitasking two+ similar tasks?
The Allport’s module resource theory
attention comes from distinc, specialized modules of the brain
What is expectancy theory?
an individual will behave or act in a certain way because they are motivated to select a specific behavior over others due to what they expect the result of that selected behavior will be.
i.e. A teacher lower their expectations of a student whom they view as lazy. After recognizing this, the student begins to work less hard because he believes he cannot be successful
What is the illness experience?
A social construct that describes how people conceive of and experience the phenomenon of becoming ill, navigating the decision of whether or not to seek care, and the experience of recovery
What is an antagonist?
compounds that bind to a receptor but do not cause a response
this prevents the receptors from being bound to an agonist and activating a response
What is a bureaucracy?
a rational, well-organized, impersonal, typically large adminstrative system
i.e. governments, hospitals, schools, corportations, and courts
Where is epinephrine and norepinephrine released?
Adrenal medulla
What are the four stages of Sort Piaget’s stages of cognitive development?
-
Sensorimotor <em>(0-2 years old)</em>
- acquiring language in earnest
-
Preoperational <em>(2-7 years old)</em>
- represent objects symbolically, using words and images, and often take part in very vivid imaginative play based on those representations, but can only engage in very minimal logical thinking
-
Concrete operational <em>(7-11 years old)</em>
- abstract reasoning, but only as applied to concrete objects
-
Formal Operational (11-16+ years old)
- ability to fully engage in abstract logic is developed
What is observational learning?
learning that occurs through observing the behavior of others. It is a form of social learning which takes various forms, based on various processes
Glutamate is what type of neurotransmitter?
excitatory neurotransmitter
What is the 4 major function of the midbrain?
- Motor control (i.e. eye movement)
- sleeping
- walking
- temperature regulation
What is the threshold of conscious perception?
The threshold for conscious perception is defined as the minimum stimulus required to consciously perceive the stimulus
The threshold to consciously perceive a stimulus is always greater than the absolute threshold, which is the intensity of a stimulus required to activate sensory receptors 50% of the time
Give two examples of opioid drugs
- Morphine: derived from opium poppy
- Heroin: synthetic morphine derivative
- codeine
- hydrocodone
- oxycontin
- fentanyl
What is the function of the vestibule of the ear? What two structures does it contain?
The vestibule senses linear acceleration
it contains two sub-structures: the utricle (horizontal plane) and the saccule (verticle plane)
What is the difference between linguistic determinism and linguistic relativism (The Sapir-Whorf hypothesis)?
Linguistic determinism is a stronger claim than linguistic relativism;
linguistic determinism states that language completely determines the way we think and see the world, rather than saying that language shapes the way we see the world (like in relativism)
What is a reference group?
a group that we compare ourselves to (even if we are not part of that group)
i.e. runners, med students, chefs, etc.
What is the patellar reflex?
an adult reflex
It occurs when the leg automatically jerks upward in response to a tap on the tendon under the kneecap.
What is eustress?
Eustress is stress that results from a positive circumstance, such as getting admitted to med school
What are dyssomnias?
Disorders impairing regular ability to fall or stay asleep (i.e. circadian rhythm sleep disturbance)
What is the major function of the neurotransmitter, epinephrine (adrenaline)?
acute stress response
(increase blood glucose, increase heart rate, increased muscle strength, etc.)
What is “ego-syntonic” behavior?
ego-syntonnic values or behaviors are those that are in line with a person’s goals or self-image
What is avoidance learning?
an individual learns a behavior or response to avoid a stressful or unpleasant situation.
The behavior is to avoid, or to remove oneself from, the situation
What is positron emission tomography (PET) scan?
visualizes brain activity
Works by radio labeling glucose, usually as fludeoxyglucose (FDG), which emits positrons as it decays
The areas where more decay occurs are those where more glucose is being metabolized (which corresponds to more intense neural activity)
What is the difference between sequential attention and simultaneous attention?
Sequential attention: switching back and forth between tasks (can be pretty quickly)
simultaneous attention: doing/paying attention to tasks at the same time
what is the function of the semicircular canals of the ear?
the semicircular canals sense rotational acceleration (when the head rotates)
the endolymph in the semicircular canals move and the hair cells in the semicircular canals resist that motion
What is the 7 major function of the pons and where is it located?
- sleep
- respiration
- swallowing
- taste
- bladder control
- balance
- relay station of signals to travel between the cerebellum, medulla, and the rest of the brain
What is secondary appraisal?
Cognitive appraisal of stress consists of two stages: primary and secondary
Secondary appraisal is the cognitive process that occurs when one is figuring out how to cope with a stressful event
What are the categories that personality disorders are broken down to?
- cluster A
- paranoid and schizotypal
- cluster B
- antisocial, narcissistic, histrionic, and boderline
- cluster C
- avoidant, dependent, and obsessive complusive (different from obsessive complusive disorder, OCD)
What is generalizability (external validity)?
Generalizability, also known as external validity, refers to the extent to which an experiments results are applicable to settings outside of the experiment
What is the palmar grasp reflex?
occurs when you stroke the palm of an infant’s hand and the infant’s fingers automatically close around the object.
This reflex disappears around 5 or 6 months of age
What is opponent process theory?
emotional changes in response to a steady exposure to the same scenario.
if a certain experience intially provokes an intense reaction, the opposite reaction tends to predominate.
human behaviors and emotional responses have two antagonistic components
exp. addiciton: inital pleasurable –> negative experiences of withdrawal
exp. skydiving: super scare at first –> having fun once you jump
What are 4 features of opiods?
- depressants
- cause dedation, sleepiness, respiratory depression
- pain relief/euphoria
- binds to opiod receptors on neurons
What is internal validity?
Internal validity refers to the extent to which a test’s results are “genuine” or accurate
What are the cons of using an MRI?
- expensive
- time consuming
- involved for the patient
What is heroin and it’s neural mechanism?
An opiate/opioid (pharmacological endorphin)
Binds to opioid receptors on neurons
(this causes downregulation of endorphin production in the body)
What is Lazarus theory of emotion?
a cognitive interpretation must precede both the physiological response and emotion
Define attenuated
having been reduced in force, effect, or value.
What is the function of the cochlea of the ear?
it is a spiral shaped structure in the inner ear responsible for hearing
What is token economy?
A token economy is a system of contingency management based on the systematic reinforcement of target behavior. The reinforcers are symbols or tokens that can be exchanged for other reinforcers
What is the function of hair cells in the ear?
hair cells have sterocilia that move in response to sound waves and cause neurotransmitter release
What is anhedonia?
A subjective self-report of feeling a “lack of pleasure” when partaking in normally plasurable activities
What is the difference between schizoid and schizotypal?
Schizoid: emotional aloofness and social isolation
Schizotypal: discomfort in social contexts, mixed with “weird” delusions or beliefs, conspiracies, etc.
What neurotransmitter is associated with depression?
low levels of serotonin
What is inattentional blindness?
Direct attention causes people to miss things happening in the background
(like the invisible gorilla experiment – count the number of passes thrown between the basketball players: so busy counting that we completely miss the gorilla walking through the players)
What is motion parallax?
motion parallax describes the fact that objects that are close to us move further across our visual field than objects far from us
this is one of the cues that we use to perceive depth
What is the HPA axis?
The HPA axis (hypothalamic–pituitary–adrena) involves and promotes multiple negative feedback systems, as several downstream hormones can inhibit release of their tropic (upstream) hormones in order to avoid overproduction
Name four drugs that are depressants?
- alcohol
- barbiturates
- benzodiazepines
- opioids
What is sensory memory?
Sensory information, typically visual or auditory, passes through sensory memory, which is short-lived
If the information is particularly relevant or otherwise attended to, it can move to short-term memory before being stored in one’s long-term memory
sensory memory is not a type of short-term memory unless sufficient attention is paid to it
What is gestalt’s principle of continuity?
Continuity is a Gestalt principle that suggests that when we see visual information arranged in a continuous row or line, we may perceive it as a line instead of as individual objects
What is social constructionism?
accounts for the way people jointly create understandings of the world based on interactions with each other
What is the difference between positive and negative controls?
What are 8 characteristics of REM sleep?
- Quick bursts of eye movement (rapid eye movement)
- similar brain waves to beta waves/awakeness
- very little muscle movement (atonia)
- irregular breathing and heart rate
- majority of dreaming takes place during this stage
- REM stages get longer as the night progresses
- greater total REM sleep stages = more restful
- REM rebound
- after missing sleep, you “catch up” on REM sleep the next night
What is conversion disorder?
conversion disorders involve sudden sensory or motor impairments (blindness, paralysis, difficulty swallowing) following a period of stress
What is the function of the perilymph?
It transmits vibrations to the basilar membrane
What is availability heuristic?
incorrectly estimating the probability of an event because of the availability of knowledge of the event, such as being afraid of a flood after hearing of one in a different state
what most recently comes to mind
What is the g factor in psych/soc?
general intelligence
underlying capacity that drives performance in many fields
can be heritable for up to 50% (genetics, environment etc.)
What is problem-solving dream theory?
Problem-solving dream theory includes the hypothesis that we attempt to solve problems while dreaming without being limited by the rules of reality
What is crystallized intelligence?
Crystallized intelligence involves the use of previously-learned knowledge, skills, and experience
reflected in a person’s general knowledge, vocabulary, and reasoning based on acquired information
What is a manifest function?
the intended function of social policies, processes, or actions that are consciously and deliberately designed to be beneficial in their effect on society
List the following cells in order that they are activated in the visual pathway:
amacrine cells
ganglion cells
bipolar cells
photoreceptors
horizontal cells
- photoreceptors (rods/cones)
- horizontal cells
- integrate input, inhibiting photoreceptors and helping the eye to adjust to high versus low light conditions
- bipolar cells
- amacrine cells
- ganglion cells
What is gestalt’s principle of proximity?
Proximity is a Gestalt principle which suggests that objects which are close together are seen by our brain as related
How is the hypothalamus connected to the anterior pituitary?
a portal system
What is a polysomnopgraphy?
A sleep study measuring multiple physiological parameters
What is Schachter-Singer theory of emotion?
a physiological response is interpreted in context to yield an emotional response
the physiological response precedes its associated cognitive emotional response
What neurological patterns are seen in alpha waves?
Relaxed, calm, meditation
Drowsiness, fatigued
(closing our eyes, but not falling asleep)
What is a cross-sectional study?
an observational study in which measurements and analysis are done at one time on a group of people
What is korsakoff syndrome and its symptoms?
psychiatric condition associated with chronic alcoholism
- anterograde and retrograde amnesia
- confabulation (invented memories)
- Lack of vitamine B1 (thiamine)
anterograde: events starting <em>after</em> the syndrome develops
retrograde: events before the syndrome develops
What is magnetic resonance imaging (MRI)?
It uses strong magnetic fields to image structures within the body
how is information from the left and right visual fields transmitted to the retina and to the left and right hemispheres of the brain?
- the left side of the retina in each eye sees the right visual field and vice versa
- the left visual field is processed in the right hemisphere of the brain and vice versa
- (left side of retina goes to left side of brain, right side of retina goes to right side of brain)
What is an agonist?
a compound that activates a certain receptor, causing a response
What is the major responsibility of the forebrain?
advanced functions like reasoning
What is the primary function of the nucleus accumbens?
encoding of information related to addictive/rewarding behavior
What is a longitudinal study?
a study which assesses how certain variables change over time
What is a tropic hormone?
any hormone that stimulates an endocrine gland to produce another hormone
What are Howard Gardner’s eight distinct forms of intelligence in his theory of multiple intelligences
- bodily-kinesthetic
- visual-spatial
- interpersonal
- intrapersonal
- naturalistic
- logical-mathematical
- musical-rhythmic
- verbal-linguistic intelligence
what is the function of the basilar membrane of the ear?
the basilar membrane is where hair cells are attached
What is the diagnostic criteria for major depressive disorder?
Exhibit at least 5 of the criteria for MDD persisting for at least a 2-week period
What is the traditional “first-line treatment” for schizophrenia?
Neuroleptics
Neuroleptics are dopamine antagonists with cognitive side-effects
What is the difference between role strain and role conflict?
Role strain: strain brought onby mulitiple responsibilites from one role
Role conflict: difficulty brought on by trying to balance multiple, different roles
The reticular formation (part of brain stem) is most closely associated with ____?
alertness (conciousness)
What do EOGs (electrooculograms) measure?
EOGs measure eye movement
What is retinal disparity?
Binocular cues are the aspects of an image which change when we see it from our right eye versus when we see it from our left eye.
An object might appear closer to you when you shut your left eye, and farther when you shut your right eye. The difference in an object between your two eyes is the “retinal disparity”.
Your brain processes both individual images and turns them into one, cohesive image, which you finally experience
What does the hormone thyroxine do?
regulate metabolism
secreted by thyroid
What is the primary function of the parietal lobe?
receiving and processing sensory input
What three things protects the spinal cord?
- fluid (cerebrospinal fluid)
- membranous meninges
- strong bones (vertebrae).
What are the 6 major glands of the endocrine system?
- hypothalamus
- anterior pituitary
- posterior pituitary
- thyroid gland
- adrenals
- ovaries/testes
What is the flat effect?
a negative symptom where a person has no outward reaction to an emotional stimulus
Where in the sleep pattern do we see theta waves?
Stage 1 and Stage 2 of non-REM sleep
What is the dichotic listening task?
Used to investigate selective attention
- Subjects are given headphones and asked to focus on one ear (i.e. the right).
- different words are simulatenously fed through each side/ear of the headphones.
- When asking listeners to recall the words, they tend to only remember the words coming in from the side of the ear they were told to pay attention to
What is stage 3 of non-REM sleep?
- deep sleep
- characterized by delta waves (slow-wave, low frequency, high amplitude)
- important for memory processing
- brain recovers from daily activites
What is the nativist theory of language development?
The nativist theory of language development states that all humans have an innate language acquisition device that allows us to learn language similarly
What is a fMRI?
image both structure and function
A method that relies on the difference in magnetic properties between oxygenated hemoglobin (arterial blood) and deoxygenated hemoglobin (venous blood) to visualize blood flow.
What is the limbic system?
A grouping of various structures involved in emotion, memory, and motivation (reward or goal seeking behavior)
hippocampus – memory and learning
amygdala – basic emotions
thalamus – sensory input directed to higher brain
hypothalamus – connects the CNS with the endocrine system
What is the interactionist theory of language development?
The interactionist theory of language development states that language is learned through a series of interactions with others
For example, a child may learn that calling another child “stupid” will make them feel bad and learn that this is a rude thing to say. So, rather than the cut and dry reward and punishment from behaviorism, interactionists place a lot of emphasis on human interaction
What is gestalt’s principle of similarity?
Similarity is the principle which suggests that our brain groups objects which look similar together
Where is cortisol released?
Adrenal cortex
What are the two major functions of the neurotransmitter, dopamine?
- involved in the reward pathways (and addiction)
- mediates motor function
What is gonadotropin-releasing hormone (GnRH)?
a tropic hormone released by the hypothalamus which acts on the anterior pituitary
It causes the anterior pituitary to secrete the tropic hormones LH and FSH, which exert downstream effects on reproduction
What is the primary role of the prefrontal cortex?
the part of the brain responsible for rational decision making as well as motivational and impulse control
What is a moderating variable?
A variable that affect the intensity of an observed relationship between two variables
What is cognitive dream theory?
The cognitive dream theory posits that dreams are just stream-of-consciousness scenarios that are randomly ordered by the dreamer’s brain
dreams reflect cognitive structures that play a role in our everyday lives, such as conceptions of self, others, and the world.