Week 1 Flashcards

1
Q

Desirable difficulties

A

Need to engage in material fully to understand it = deeper learning

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2
Q

Introspectionism

A

Introspection, ‘qualities’ of mental experience

  • Think about your thinking (feelings)
  • Importance of intentionality and volition (conscious thought)
  • Must look within / introspect because we can’t experience others’ thoughts
  • Must be trained to report experiences without interpretation
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3
Q

Introspectionism issues

A
  • Can’t tell us about unconscious events
  • Introspection is hard to scientifically prove or quantify
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4
Q

Introspectionism - scientists

A

Wundt and Titchener (his student), William James

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5
Q

Psychophysics

A
  • gave credibility to mechanism
  • Looks for regular and measurable relation btwn thinking and environment
  • “Just noticeable differences”
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6
Q

Psychophysics - scientists

A

Ernst Weber; the amount of physical energy necessary to produce a change in sensation is proportional to the original level of physical energy

Gustav Fechner; physical energy and the psych experience are related by a logarithmic function

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7
Q

Kant-ian logic

A
  • determine underlying causes that lead to observed effects
  • morality = rationality = universal (all are fundamentally rational)
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8
Q

Behaviourism

A
  • Only looks at observables
  • “Subjective experience is unverifiable = unreliable”

Stimulus -> response

  • lots of reward/punishment
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9
Q

Behaviourism issues

A

We must consider both stimuli AND a subjects knowledge and understanding of the stimulus (personal interpretation)

= subjective

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10
Q

Behaviourism - scientists

A

BF Skinner, John Watson

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11
Q

Cognitive psych revolution

A

Moving away from behaviourism

Tolman rat mazes
= cognitive maps
= internal thought is necessary

Chomsky grammar rules
= innate mechanisms and rules

Kant’s transcendental method
= Start with observable effects then look for the underlying causes
= Sometimes called “inference to best explanation”
= Visible effects from an invisible cause
= Then hypothesize and test what the mental processes were

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12
Q

Computer metaphor for the mind

A

Input

cogpsych and memory
+ storage

Output

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13
Q

The computer model of the mind

A

Environmental energy
–> information

Psychological processes
–> coding, representation

Memory
–> storage and retrieval

Storage capacity

  • Donald Broadbent used compsci to theorise how ppl focus their information when working in complex environments
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14
Q

Tenets of cog psych

A

knowledge is…

  • acquired (perception, attention,
    categorization)
  • retained (memory encoding and retrieval)
  • used (decision making, judgement, inference)

NOT just a copy of sensory input

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15
Q

Brodmann brain areas

A
  • based on cytoarchitectural organization of neurons
  • used nissl and golgi stains

= brain is specialized

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16
Q

MRI vs. fMRI

A

MRI
- structural image

fMRI
- functional
- must pay attention to tasks done during scan (task analysis)

17
Q

fMRI

A
  • best for spatial localization, bad for temporal (has to wait for blood)
  • functional
  • magnetize hemoglobin iron, see where blood recruited
  • coloured parts are lit up because of SUBTRACTION when you compare different types of tasks (look at brain differences)
18
Q

EEG (electroencephalography)

A
  • sticker cap
  • good for temporal, bad for spatial
  • looks at patterns in brain waves
19
Q

ERP (event-related potentials)

A
  • good for temporal, bad for spatial
  • subtraction used
20
Q

PET scan

A
  • bad temporally, good spatially
  • old MRI where radioactive contrast is injected
21
Q

CAT scan

A
  • good for structural, bad for functional
22
Q

Single-cell recordings

A
  • not really used for humans
  • sometimes used during brain surgery
  • used for sensation more than cognition
23
Q

MEG

A
  • Good spatially AND temporally
  • Electrical current across scalp = magnetic field around you head
  • Only for brain close to scalp
24
Q

ECT (electroconvulsive therapy)

A

Used for depression

25
Q

TMS (transcranial magnetic stimulation)

A
  • Temporary lesion in a certain part of your brain
26
Q

SPECT & EROS

A
  • Shine light through your skull non-invasively
27
Q

Necker cube

A
  • Line drawing of a cube that might be facing up or down based on how you perceive it

= Perception based on assumptions

28
Q

Perception _____ sensation

A

Perception =/= sensation!!!

  • Retinal image is 2D (sensation)
  • We go beyond the information given (perception)
  • Given info often incomplete / confusing / ambiguous
29
Q

3 visual perception tasks

A
  1. Form (what)
  2. Depth (where)
  3. Motion (doing what)
30
Q

Different neuron receptive fields

A

Different types of neurons might look at…

  • line orientation
  • edge detection
  • centre-surround
  • direction of movement
31
Q

Parallel processing

A
  • Visual systems and pathways are specialized
  • Different types of processing occur simultaneously, helping to deal with all the demands of processing
32
Q

The binding problem

A

The binding problem: have to bind dorsal/ventral/different brain areas info back together

Use:
1. Spatial position
2. Rhythm of neural cycles (signifies what’s moving together)

33
Q

Patient HM

A
  • Got surgery to control his epilepsy
  • Couldn’t form new memories after the surgery, but could remember those from before
  • Didn’t remember that his fav uncle died = kept hearing it for the “first time” = couldn’t process his grief
  • He didn’t know who he was (had no sense of self) as he didn’t have the memory to know his successes or transgressions, personality or actions, intelligence or honesty
34
Q

Clinical neuropsychology

A

Studies brain injuries compared to healthy brains using neuroimaging techniques

35
Q

Cognitive neuroscience

A

Studies mental functioning through studying the brain and nervous system