Psych Sub-topic

90 flashcardsby David
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1
Dendrites
Receive incoming neural signals
2
Axon
Carries outgoing neural signals
3
Myelin sheath
Insulates axon and speeds transmission
4
Terminal buttons
Release neurotransmitters into synapse
5
Synapse
Gap between neurons where communication occurs
6
Depolarization
Sodium ions enter neuron making it more positive
7
Repolarization
Potassium ions leave neuron restoring negative charge
8
Refractory period
Brief time neuron cannot fire again
9
Excitatory neurotransmitter
Increases likelihood neuron will fire
10
Inhibitory neurotransmitter
Decreases likelihood neuron will fire
11
Central nervous system (CNS)
Brain and spinal cord
12
Peripheral nervous system (PNS)
All nerves outside CNS
13
Somatic nervous system
Controls voluntary movements
14
Autonomic nervous system
Controls involuntary functions
15
Sympathetic nervous system
Activates fight-or-flight response
16
Parasympathetic nervous system
Restores body to calm state
17
Absolute threshold
Minimum stimulus detected 50% of the time
18
Difference threshold (JND)
Smallest detectable difference between stimuli
19
Signal detection theory
Detection depends on experience, expectations, alertness
20
Rods
Detect light, black/white, peripheral vision
21
Cones
Detect color and detail
22
Trichromatic theory
Three types of cones detect red, green, blue
23
Opponent-process theory
Colors processed in opposing pairs
24
Closure (Gestalt)
Filling in gaps to perceive whole
25
Proximity (Gestalt)
Grouping nearby objects
26
Similarity (Gestalt)
Grouping similar items
27
Unconditioned stimulus (UCS)
Naturally triggers response
28
Unconditioned response (UCR)
Automatic response
29
Conditioned stimulus (CS)
Previously neutral, now triggers response
30
Conditioned response (CR)
Learned response
31
Acquisition
Initial learning of association
32
Extinction
Weakening of learned response
33
Spontaneous recovery
Return of extinguished response
34
Generalization
Responding to similar stimuli
35
Discrimination
Distinguishing stimuli
36
Positive reinforcement
Add pleasant stimulus to increase behavior
37
Negative reinforcement
Remove unpleasant stimulus to increase behavior
38
Positive punishment
Add unpleasant stimulus to decrease behavior
39
Negative punishment
Remove pleasant stimulus to decrease behavior
40
Fixed ratio schedule
Reinforcement after set number of responses
41
Variable ratio schedule
Reinforcement after unpredictable responses
42
Fixed interval schedule
Reinforcement after fixed time
43
Variable interval schedule
Reinforcement after unpredictable time
44
Encoding specificity
Better recall in same context as learning
45
Mood-congruent memory
Recall matches current mood
46
State-dependent memory
Recall matches physical/mental state
47
Central executive
Controls attention in working memory
48
Phonological loop
Processes auditory/verbal info
49
Visuospatial sketchpad
Processes visual/spatial info
50
Proactive interference
Old info interferes with new
51
Retroactive interference
New info interferes with old
52
Representative heuristic
Judging based on similarity to prototype
53
Availability heuristic
Judging based on ease of recall
54
Assimilation
Fit new info into existing schema
55
Accommodation
Change schema to fit new info
56
Egocentrism
Inability to see others’ perspectives
57
Conservation
Understanding quantity stays same despite changes
58
Zone of proximal development
Tasks child can do with help
59
Scaffolding
Guidance provided during learning
60
Microsystem
Immediate environment
61
Mesosystem
Interaction between environments
62
Exosystem
Indirect environment influences
63
Macrosystem
Culture and societal norms
64
Chronosystem
Time and life changes
65
Repression
Blocking distressing thoughts
66
Projection
Attributing own feelings to others
67
Displacement
Redirecting emotions to safer target
68
Reaction formation
Acting opposite of true feelings
69
Regression
Reverting to earlier behaviors
70
Fundamental attribution error
Blaming personality over situation
71
Actor-observer bias
Attributing own actions to situation, others to personality
72
Self-serving bias
Credit success internally, blame failure externally
73
Social facilitation
Improved performance in presence of others
74
Social loafing
Reduced effort in group
75
Groupthink
Desire for harmony overrides critical thinking
76
Alarm stage
Initial stress response
77
Resistance stage
Body adapts to stress
78
Exhaustion stage
Body resources depleted
79
Problem-focused coping
Directly addressing stressor
80
Emotion-focused coping
Managing emotional reaction
81
James-Lange theory
Arousal → emotion
82
Cannon-Bard theory
Arousal + emotion simultaneously
83
Schachter-Singer theory
Arousal + cognitive label → emotion
84
Drive reduction theory
Reduce physiological discomfort
85
Incentive theory
Behavior motivated by rewards
86
Self-determination theory
Motivation from autonomy, competence, relatedness
87
Positive symptoms (schizophrenia)
Added behaviors like hallucinations, delusions
88
Negative symptoms (schizophrenia)
Loss of normal functions like flat affect
89
Delusions
False beliefs
90
Hallucinations
False sensory experiences

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