Cognition Flashcards

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1
Q

memory

A

organisation storage and retrieval of information, internal records of previous events or experience, involves paying attention to surroundings and converting it into form that can be stored (encoded) in brain and retrieved when required

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2
Q

multi-store model of memory

A

Atkinson and Shifrin, perception -> sensory memory store (echoic memory (3-4s)or iconic memory (1-2s)) -attention> short term memory (30s) if rehearsal occurs to keep in short term memory then encoding occurs into long term memory, if no rehearsal occurs it is forgotten, in LTM if unable to retrieve it is forgotten,

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3
Q

encoding

A

changing info into a form that can be stored in the long term memory (attention to information is necessary)

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4
Q

sensory memory

A

information stored for a short period (30s), stores all incoming sensory information in memory registers for different senses

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5
Q

short term memory

A

information that has been attended to from sensory info, stored for a short period of time (30s) in STM, if rehearsed it is encoded into LTM, holds all current into (thoughts/experiences), can also retrieve info from LTM

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6
Q

long term memory

A

relatively permanent storage of info, unlimited amount of capacity, forgotten if unable to retrieve

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7
Q

Iconic/echoic memory

A

iconic stores visual memory for up to 1-2s

echoic stores all auditory memory for up to 3-4s

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8
Q

types of rehearsal

A

maintenance rehearsal: meaningless rote repetition of materials to be remembered (saying over and over again 1, 1, 1, 1, to remember 1)
elaborating rehearsal: applying meaning to new words in order to retain them in memory e.g 2207 = birthday so more likely to remember number sequence
chunking: materials combined into larger meaningful group e,g cat, dog, horse = animals rather than cup,phone,star (unrelated so harder to remember)

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9
Q

LTM- procedural memory

A

“How to” of memory, way you do things e.g wrtiging name, how to ride a bike, occurs automatically/ unconsciously, also known as implicit memory not conscious

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10
Q

LTM - declarative memory

A

“What of memory, recalling facts/events (known as explicit memory requires conscious effort to recall

  • episodic memory: memory of own set of autobiographical events/ personal experiences linked to sensations and feelings/emotions (birthday party memories)
  • semantic memory: factual knowledge obsessed about outside world (multiplication tables, rules etc)
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11
Q

working model of memory - specifically STM Baddeley and Hitch

A

central executive: boss/leader of STM, controls and coordinates other components (sketch pad, loop, buffer) controls attention and sends incoming info to relevant areas, briefly stores all sensory info
- visuospatial sketch pad: stores and manipulates information of visual & spatial nature (slave system to central executive)
- phonological loop: other slave system to central executive, sites / manipulates auditory information, processes incoming info, stores/plans, speech production
episodic buffer: added later, links info across sketchpad and loop, forms integrated units of visual,spatial and verbal information with time e.g memory of story/movie

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12
Q

measures of memory

A

recall: involves being able to access info without being cued e.g short answer questions
recognition: involves identifying after experiencing it again e.g multiple choice questions
relearning: involves relearning information that has previously been learned (often makes it easier to remember/retrieve info in future, can improve strength of memories)
forgetting: failure to access info that has previously been stored in memory

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13
Q

retrieval failure theory

A

cue dependent forgetting: info is in memory it just can’t be accessed, failure to use correct/appropriate cues at a certain time
TOT: tip of tongue phenomena

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14
Q

interference theory

A

when two peices of information are too similar it oeads to interference causing us to forget the difference

  • proactive interference: interference of old memories on retrieval of new information
  • retroactive interference: new info interferes with ability to recall old information
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15
Q

motivated forgetting

A

strong desire to forget certain things because memory is too traumatic, anxiety provoking, self protection defence

  • repression: keeping distressing/unpleasant thoughts buried in unconscious and prevent from entering conscious (occurs unconsciously)
  • suppression: deliberate effort to keep distressing thoughts out of conscious awareness
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16
Q

decay theory

A

forgetting occurs bc memory trace tends to gradually fade away/decay overtime, contributes to loss of info in sensory memory and STM via displacement

17
Q

organic theories of forgetting

A

forgettingm amnesia or memory loss occurs due to some type of brain damage e,g blow to head, misuse of alcohol/drugs, ageing etc, damage to different areas of the brain can lead to different forms of memory loss

18
Q

learning

A

relatively permanent change often of behaviour, that occurs as a result of experience

19
Q

stimulus response theories

A

early approaches explore learning as a result of humans/animals responding to stimuli in the environment, shift occurs from behaviour being result of external stimuli to a focus on internal cognitive mental processes

20
Q

classical conditioning

A

an associations forming between two stimuli, one of which is not normally associated with the response, therefore appearance of stimulus alone results in response behaviour

  • conditioning: association made by learner between a stimulus and response
  • stimulus any variable present in environment that may trigger a response
  • response: action/behaviour that is exhibited
21
Q

classical conditioning components

A

neutral stimulus: any stimulus that
that produces no relevant responses prior to classical conditioning
unconditioned stimulus: any stimulus that consistently leads to reflexive response (unlearned stimulus)
conditioned stimulus: previously neutral stimulus that, after becoming associated with the unconditioned stimulus, eventually comes to trigger a conditioned response.
unconditioned response: unlearned, reflexive, involuntary response to a stimulus
conditioned response: reflexive, involuntary response that has become associated with a stimulus by which it was not previously caused
unconditioned response -> conditioned response
neutral stimuli -> conditioned stimuli

22
Q

classical conditioning effects

A

acquisition: initial stage of learning when a response is first established and gradually strengthened, during this phase a neutral stimulus is repeatedly paired with unconditioned stimulus
extinction: when occurrences of conditioned response decrease/disappear, occurs because not enough conditioning was conducted or too much time passed from when last conditioned
spontaneous recovery: learned response an suddenly re-emerge even after period of extinction (period of rest/lessened response)
stimulus generalisation: tendency for conditioned response to evoke similar responses to other stimuli after response has been conditioned (e.g conditioned stimulus=white mouse, stimulus generalisation=white rabbit, ferret, rat etc)
stimulus generalisation: ability to differentiate between a conditioned stimulus and other stimuli that have similar characteristics that have not been paired with unconditioned stimulus

23
Q

operant conditioning definition

A

learning explained by consequences

24
Q

reinforcement/punishment

A

reinforcement: causes behaviour to occur more frequently

punishment causes behaviour to occur less frequently

25
Q

positive/negative reinforcement

A

positive reinforce the: add pleasant stimulus to increase/maintain behaviour
negative reinforcement: remover unpleasant/bad stimulus to increase/maintain behaviour (e,g no homework)

26
Q

positive/negative punishment

A

positive punishment: add unpleasant/bad stimulus to decrease behaviour leg add detention/ seating plan
negative punishment: removing pleasant stimulus to decrease behaviour e,g take away device/ fun activities

27
Q

observational learning

A

not concerned with internal mental processes, observable behaviours are the focus, reciprocal determinism: environment causes behaviour and learning, behaviour can change environment,

28
Q

factors involved in observational learning (ARRRM)

A

attention: observers cannot learn unless they pay attention to what’s happening around them
retention: observers must be able to rem,enter what was happening around them at the time of observation
reproduction: observers must be capable (physically/psychologically) to reproduce the act
motivation/reinforcement: observers will only perform what they have observed if they have the motivation/reason to do so, presence of reinforcement is an important aspect to motivation (prize,reward etc)

29
Q

social learning theory

A

learning is the function of observing, retaining and replicating behaviour observed in others, occurs through observing actions & consequences of others, behaviour and determining whether to imitate them or not

30
Q

modelling (observational learning)

A

occurs when one observed the behaviour and consequences of another to influence their own thoughts, actions and feelings

31
Q

behaviour modification therapy

A

application of classical and operant conditioning techniques, can be used to treat psychological problems e.g fears/phobias or mental illnesses

32
Q

token economy

A

artificial systems of research and reinforcement where symbolic markers (tokens e.g fake money) are used to reward behaviour, markers can be exchanged for something more tangible e,g goods/privileges, widely used in classrooms, prisons, psychiatric hospitals,

33
Q

token economy advantages

A

more effective than simple reinforcement schemes as participants have to repeat desired behaviour to earn prize, accumulation of markers leads to secondary reinforcer so behaviour changes are likely to continue

34
Q

token economy limitations

A

difficulty of maintaining improvement in behaviour once token economy has been removed e.g after/outside classroom, token needs to be replaced with other social reinforcers which is often unsuccessful

35
Q

systematic desensitisation

A

application of classical conditioning to fears/phobias in humans, the goal is to replace undesirable behaviour (fear/anxiety) with more productive, desirable behaviours/responses, fear is replaced with relaxed response

36
Q

steps of systematic desensitisation

A
  1. Learn and practice relaxation techniques
  2. Create fear hierarchy (list least fear provoking situation in relation to phobia to most fear provoking situation)
  3. graded exposure: gradually introduce these situations (starting from least fear provoking and implement relaxation techniques until person is comfortable enough to move onto next least frightening situation
  4. Only proceed to next lowest fear provoking scenario only when fear/anxiety is at a 0 for multiple times
37
Q

Cognitive behavioural therapy

A

techniques based on premise that cognitions (thoughts) influence feelings and behaviours and subsequent behaviours/emotions influence cognition, the way individuals perceive a situation is more closely connected to their reaction than the situation itself
the goal is to identify maladaptive thoughts/feelings/emotions, used to treat depressive disorders, anxiety disorders, PTSD, OCD, cost effective benefits outweigh costs relative to other treatments e,g medication

38
Q

components of behavioural therapy

A

cognitive component: based on theory that distressing emotions and behaviours are result of maladaptive thinking, aims to replace dysfunctional thoughts with ones that can be managed
behavioural compliment: behaviour modification, relaxation, other behavioural change techniques