Cognition, Consciousness, and Language Flashcards
Piaget’s 4 stages of cognitive development
Sensorimotor, preoperational, concrete operational, and formal operational stages
Sensorimotor Stage
(birth-2 yrs) Focuses on manipulating the environment to meet physical needs through circular reactions. Object permanence ends this stage
Preoperational Stage
(2-6 yrs) Focues on symbolic thinking, egocentrism, and centration (tendency to focus on only one aspect of a situation or object at a time)
Concrete operational stage
(6-11 yrs) Focuses on understanding the feelings of others and manipulating physical (concrete) objects
Formal operational Stage
(> 11 yrs) Focuses on abstract thought and problem solving
What does problem solving require?
Identification and understanding of the problem, generation and testing of potential solutions, and evaluation of results
Mental set
A pattern of approach for a given problem
Functional Fixedness
The tendency to use objects only in the way they are normally utilized, which may create barriers to problem solving
Types of Problem Solving
Trial-and-error, algorithms, deductive reasoning, and inductive reasoning
Deductive reasoning
Deriving conclusions from general rules (theory testing)
Inductive reasoning
Deriving generalizations from evidence (theory building)
Heuristics
shortcuts or rules of thumb used to make decisions
Biases
Exist when an experimenter or decision maker is unable to objectively evaluate information
Intuition
“A gut feeling” regarding a particular decision; the ability to act on perceptions that may not be supported by available evidence
Methods that may lead to erroneous or problematic decisions
Heuristics, biases, intuition, and emotions
Gardner’s theory of multiple intelligences
Proposes 7 areas of intelligence: linguistic, musical, logical-mathematical, visual-spatial, bodily-kinesthetic, interpersonal, and intrapersonal.
What contributes to variations in intellectual ability
Combinations of environment, education, and genetics
Alertness
The state of being awake and able to think, perceive, process, and express information
What type of waves predominate on Electroencephalography (EEG)
Alpha and Beta waves
Stage 1 sleep
Light sleep, dominated by theta waves on EEG
Stage 2 sleep
Slightly deeper than Stage 1 sleep and includes theta waves, sleep spindles, and K complexes
Stages 3 and 4 sleep
Deep (slow-wave) sleep (SWS) –> Delta waves predominate on EEG (low frequency, high voltage sleep waves). SWS is associated with cognitive recovery and memory consolidation, as well as increased growth hormone release
What stages of sleep do most sleep-wake disorders occur in?
During Stage 3 and 4 non-rapid eye movement (NREM) sleep
Rapid eye movement (REM) sleep
Also called paradoxical sleep –> mind appears close to awake on EEG, but the person is asleep. Eye movements and body paralysis occur in this stage, as well as most dreaming. procedural memory consolidation associated with this stage.
Sleep cycle
Approximately 90 minutes for adults.
Normal cycle is Stage 1-2-3-4-3-2-REM or just 1-2-3-4-REM –> REM becomes more frequent toward the morning
What promotes sleepiness at night?
Changes in light in evening trigger release of melatonin by the pineal gland, resulting in sleepiness
Affect of cortisol on sleep cycle
Cortisol levels increase in the early morning and help promote wakefulness
Dyssomnias
Sleep disorders that involves difficulty falling or remaining asleep such as insomnia, narcolepsy, sleep apnea, and sleep deprivation
Parasomnias
Involves abnormal movements or behaviours when falling asleep, sleeping, or waking up –> includes night terrors and sleep walking
What are the types of consciousness-altering drugs
Depressants, stimulants, opiates, and hallucinogens
Which brain pathway mediates drug addiction
Mesolimbic pathway; includes nucleus accumbens, medial forebrain bundle, and ventral tegmental area
–> dopamine is the main neurotransmitter in this pathway
Depressants
Promotes or mimic GABA activity; reduces nervous system activity, resulting in a sense of relaxation and reduced anxiety.
Includes Alcohol, barbiturates, benzodiazepines
Stimulants
Promotes dopamine, norepinephrine, and serotonin concentration at synaptic cleft; increase in arousal in nervous system
Includes amphetamines, cocaine, ectasy
Opiates and opioids
These compounds bind to opioid receptors in the PNS andCNS, causing decreased reaction to pain and a sense of euphoria. Can cause death by respiratory depression
Includes heroin, morphine, opium
Hallucinogens
Distortion of reality, sympathetic response
Includes LSD, mushrooms, and mescaline
Selective attention
Allows one to pay attention to a particular stimulus while determining if additional stimuli in the background require attention
Divided attention
Uses automatic processing to pay attention to multiple activities at one time