Test 2 Flashcards

(113 cards)

1
Q

Consciousness

A

Awareness of the self, environment
Enables humans to exert voluntary control and communicate mental states
Can be altered

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2
Q

Sequential processing

A

Processing one aspect of a problem at a time

Used on new or complex tasks

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3
Q

Parallel processing

A

Processing many aspects of a problem simultaneously

Brain’s natural mode of information processing for many functions.

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4
Q

Selective attention

A

Focusing conscious awareness on a particular stimulus

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5
Q

Inattentional blindness

A

Failure to see visible objects when ones attention is directed elsewhere. (Monkey business)

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6
Q

Change blindness

A

Failing to notice changes in the environment (two guys switching)

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7
Q

During sleep, the human auditory cortex…

A

Responds to sound stimuli

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8
Q

Circadian rhythm

A

Internal biological clock. Regular bodily rhythm that occurs on a 24 hour cycle. Altered by age, experience

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9
Q

The suprachiasmatic nucleus (SNC)

A

When light hits the eye’s retina, signals the SNC suppress melatonin production.
At night the SNC calms down allowing the release of melatonin into the bloodstream.

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10
Q

Sleep

A

Periodic natural loss of consciousness

Different from unconsciousness caused by comas, anesthesia etc..

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11
Q

EEG and sleep

A

Can detect brainwaves when an individual is asleep

When awake but relaxed, alpha waves

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12
Q

NREM-1 Sleep

A

Irregular brain waves of the non-REM sleep stage.

May experience hypnagogic sensations.

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13
Q

NREM-2 Sleep

A

Deeply relaxed state that lasts for 20 minutes. EEG depicts bursts of rapid rhythmic brain activity

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14
Q

NREM-3

A

sleep state that lasts for 30 minutes;
Delta waves, slow longer waves
After an hour total of the sleep cycle and this stage, head back to NREM-2

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15
Q

REM Sleep

A

After going back to NREM-2.
Recurring sleep stage.
Heart rate rises and breathing becomes rapid and irregular.
Eyes dart around which indicates dreaming.
Genitals become aroused, no matter the dream
Motor cortex is active, brainstem blocks its messages enabling the relaxation of muscles.

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16
Q

Paradoxical sleep

A

The body is internally aroused but externally calm.

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17
Q

The sleep cycle…

A

It repeats itself every 90 minutes.

REM sleep periods get longer.

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18
Q

Dreams

A

Sequences of images, emotions, and thoughts passing through a person’s mind.
The Two-Track mind is continuously monitoring the environment during sleep, brings in stimuli

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19
Q

Reasons we sleep…

A

To file away memories
Cognitive development
Neural pathways…

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20
Q

REM starts in the…

A

Pons

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21
Q

Dreams are like…

A

Noise from machines, just a byproduct of the brain working.

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22
Q

Substance use disorder

A

Continued substance craving and use despite significant life disruption and risk

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23
Q

Psychoactive drugs

A

Chemicals that change perceptions and mood

Stimulate, inhibit or mimic activities of neurotransmitters

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24
Q

Tolerance

A

Dwindling effect with regular use of the same dose of a drug

Required to take longer and larger doses to experience the drugs effect

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25
Addiction
Caused by increased intake of psychoactive drugs or by compulsive and dysfunctional behaviours
26
Withdrawal
Discomforted distress that follow ending the use of an addictive drug or behaviour
27
Depressants
Reduce neural activity and slow body functions
28
Stimulants
Excite neural activity and speed up body functions, raise energy and self confidence
29
Hallucinogens
Psychedelic drugs that distort perception and trigger sensory images in the absence of sensory input. Marijuana.
30
Learning
Acquiring new and enduring information or behaviours through experience
31
Associative learning
Learning that certain events occur together.
32
Cognitive learning
Acquisition of mental information by observing events, watching others, or though language
33
Classical conditioning
One learns to link two or more stimuli and anticipate events; produces respondent behaviour
34
Operant conditioning
One learns to associate an action and its consequences; | Produces operant behaviour
35
Neutral stimulus (NS)
Evokes no response before conditioning
36
Unconditioned stimulus (US)
Naturally occurring event, triggers a response.
37
Unconditioned response (UR)
Unlearned, naturally occurring response to US
38
Conditioned stimulus (CS)
After pairing with the US, produces the same response (CR)
39
Conditioned response (CR)
Something that occurs after CS is presented.
40
Acquisition
Event experienced the first time.
41
Extinction
Losing the CR after not encountering the UR after CS
42
Spontaneous recovery
CR comes back after extinction; after a pause.
43
Generalization
Responds to similar stimuli in same way.
44
Discrimination
Being able to differentiate between similar stimuli.
45
Pavlov’s legacy
Showed how learning can be studied objectively Other species can be conditioned Pavlov’s principles influence human health
46
Thorndike’s Law of Effect
Rewarded behaviour is likely to be repeated. Revealed principles of behaviour control. Cat in puzzle box.
47
Operant chamber
Skinner Box. Contains button to obtain food & record behaviour of the animal inside.
48
Shaping
A procedure in which reinforcers guide actions closer and closer towards a desired behaviour using successive approximations. Helps us understand what non verbal organisms perceive.
49
Primary VS Conditioned reinforcers
1) Unlearned; often satisfy a biological need | 2) Gains reinforcing power through their link with primary reinforcers.
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Immediate reinforcers VS | Delayed reinforcers
Immediate VS Delayed rewards
51
Cons of physical punishment
Punished behaviour is only suppressed, teaches the child to discriminate among situations. May increase aggression, shows violence as a way to cope with problems.
52
Punishment
A decrease in behaviour following an event.
53
Positive punishment
Behaviour decreases as a result of a stimulus.
54
Negative punishment
Behaviour decreases following the removal of a stimulus.
55
Reinforcement schedule
A pattern that defines how often a desired response will be reinforced
56
Continuous reinforcement
Learning occurs rapidly. | Behaviour reinforced after every time; by effect can cause rapid extinction when reinforcer is absent.
57
Partial (intermittent) reinforcement
Slower acquisition, but much greater resistance to existence
58
Skinner’s Legacy
Urged people to use operant principles to influence others | Criticized for neglecting people’s personal freedom.
59
Observational learning
Learning by observing others.
60
Modelling
Observing and imitating a specific behaviour. | Helps one anticipate a behaviours consequences in observed situations.
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Antisocial effects of | observational learning
OL may have adverse effects. | Media such as video games can be sources of OL, aggressiveness
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!Memory
Persistence of learning over time through the encoding, storage and retrieval of information.
63
Information processing model
Compares human memory to a computer’s operation. | Assumes we must encode, store, retrieve information.
64
Stages of the IPM
1) Encoding: Getting information into the memory system. 2) Storage: Retaining encoded information over time. 3) Retrieval: Getting information out of memory storage
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Forming memories...
1) Recording information as a quick SENSORY MEMORY 2) Processing information into SHORT-TERM MEMORY (OR WORKING) where it is encoded through rehearsal. 3) Moving information into LONG-TERM MEMORY for later retrieval.
66
Working memory
Newer understanding of short-term memory. | Includes the conscious and active processing of information and information retrieved from long-term memory.
67
Two-Track Memory System
``` Implicit (non declarative) memory + Explicit (declarative) memory Where encoding is done. Automatic processing = implicit memories Effortful processing = explicit memories ```
68
Implicit (non declarative) memory
Retention of learned skills or classically conditioned associations without conscious awareness. Formed via automatic processing.
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Explicit (declarative) memory
Retention of facts and personal events that can be consciously retrieved, formed via effortful processing.
70
Sensory memory
First stage in forming explicit memories. | Records immediate and very brief information, fleeting in nature.
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Iconic memory
Image like memory of a scene.
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Echoic memory
Sensory memory of sounds.
73
Total recall; George Sperling
Group of letters for 1/20th of a second, people could recall half of them. They could recall an entire a row immediately, but after 0.5 second, only half. Then with a tone, they could remember for more than 0.5 seconds.
74
Short-term memory
Miller: People can store 7 bits of info. 7 digits, 6 letters, five words.
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Short-term memory decay
Unless rehearsed, verbal information may be quickly forgotten.
76
Chunking
Organizing items into familiar units, occurs naturally.
77
Mnemonics
Memory aids; techniques that use vivid imagery and organizational devices.
78
Spacing effect
Tendency for distributed study to yield better long term retention than through masses study.
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Massed practice
Produces speedy short term learning and feelings of confidence; cramming.
80
The Testing Effect
Enhanced memory after retrieving rather than just rereading.
81
Hermann Ebbinghaus
Learning meaningful information requires 1/10th the effort than learning nonsense.
82
Retaining information in the brain...
Long term memory capacity has no real limit. Information isn't stored in just one spot. Emotions, language, views require brain networks.
83
The hippocampus is...
Our explicit memory system. Semantic + Episodic Hippocampus processes and feeds it to other areas of the brain. The hippocampus acts as a loading dock where the brain registers and stores aspects of an event.
84
Semantic memory
Explicit memory of facts or general knowledge,
85
Episodic memory
Explicit memory of personally experienced events.
86
Frontal lobes
Memories migrate for storage via the memory consolidation process. R/L store different information.
87
Hippocampus in animals...
A type of nutcracker bird can locate up to 600 caches of pine seed it previously buried.
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Cerebellum
Great role in forming and storing memories by classical conditioning.
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Basal ganglia
Deep brain structure involved in motor movement. Helps form memories for physical skills; implicit memories.
90
Effects of emotions on memory...
Excitement or stress triggers hormone production. | Provokes the amygdala to boost activity in the memory forming area; flashbulb memories.
91
Flashbulb memories
Clear memories of emotionally significant events, occur via emotion-triggered hormonal changes.
92
Key memory structures of the brain...
Hippocampus + frontal lobes: Explicit memory formation. | Cerebellum + basal ganglia: Implicit memory formation.
93
Synaptic changes
Kandel and Schwartz Cell synapses increase and become more efficient with experience and learning. More serotonin is released during learning. LTP...
94
Long-term potential (LTP)
Increase in a synapse's firing potential. | Basis for learning and memory.
95
Recall
Memory demonstrated by retrieving information learned earlier; fill in the blank test.
96
Recognition
Memory demonstrated by identifying items previously learned; multiple choice test
97
Relearning
Memory demonstrated by quicker learning when learning material the second time. Demonstrated by Ebbinghaus and his nonsense syllables. As days went on, he needed less and less time to remember.
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Priming
Activation, often unconsciously, of particular associations in memory. One memory clicks another.
99
Retrieval cues
Links between an anchor and the memory. Associations formed at the time of encoding. Memories are context dependant: Charles = Law.
100
State dependant memory
What is learned in one state can be easily recalled if the individual is in the same state.
101
Mood-congruent memory
The tendency to recall experiences that are consistent with an individual's current mood.
102
Serial position effect
Recall the first and last things in a list.
103
Encoding failure
Forgetting. Caused by age related memory decline, conscious attention to limited portions of vast sights.
104
Storage decay
The course of forgetting is initially rapid and then evens off with time; explained by the fading of physical traces of memory
105
Retrieval failure
Stored information that cannot be assessed; stems from interference and motivated forgetting.
106
Proactive interference
Older information disrupting the recall of newer information. Old attacks the new.
107
Retroactive interference
Newer information disrupting the recall of older information. New attacks the old.
108
Motivated forgetting (!)
According to Freud, people repress bad memories to protect themselves. Repressed memory lingers and can be retrieved.
109
Memory researchers... (Not Freud)
Succeed in forgetting unwanted neutral information. Great struggle to struggle to forget emotional events. People just rather not talk about it, doesn't actually leave the brain.
110
Reconsolidation
The process in which perviously stored memories are potentially altered before being stored again.
111
Misinformation effect
Occurs when a memory has been corrupted by misleading information.
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Imagination effect
Occurs when repeatedly imagining fake events creates false memories. Ex: car crash, when suggestive language was used people thought it was worse.
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Source amnesia
Faulty memory for how, when, or where info was imagined. | Real source amnesia actually never happened.