attention Flashcards

0
Q

parallel processing

A

doing 2 things at once

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1
Q

true or false

do most cognitive behaviours involve one cognitive process

A

not involve more then one cog process

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2
Q

serial processing

A

cascaded processes, serial of event

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3
Q

bottom up

A

external stimulus causes internal cognition

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4
Q

top down

A

processing influenced by the individuals expectations and knowledgge

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5
Q

information processing approach

A

bottom up and serial processing

stimulus-> attention -> perception -> though processes -> decision -> response/action

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6
Q

4 approaches to studying cognitiong

A
  1. cognitive psychology
  2. computational cognitive science
  3. cognitive neuroscience
  4. cognitive neuropsychology
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7
Q

cognitive psychology?

A

understanding human cognition by observing people’s behaviour.
Use of experiemntal method

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8
Q

computational cognitive science?

A

use of computational models to further understand human cognition compare the model’s behaviour to human [dual-route cascaded model]

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9
Q

cognitive neuroscience?

A

using info about behaviour AND the brain to understand human behaviour
fMRI, ERPs, MEG

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10
Q

cognitive neuropsychology

A

studying brain-damaged patients to understand human cognition

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11
Q

temporal resolution

A

WHEN an event occurs in the brain

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12
Q

spatial resolution

A

WHERE an event occurs in the brain

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13
Q

Event-related potential (ERPs)

+ & -

A

+
non invasively measures electrical activity in the brain during cog activity
high temporal resolution

  • limited spatial resolution (only surface)
    requires many trials
    skull and brain tissue distort electrical fields
    largely blind to subcortical [inner parts of brain]
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14
Q

functional magnetic resonance imaging (fMRI)

+ & -

A
measures changes in blood blow during cog activiy (BOLD signal)
\+
non-invasive, indirect measure
spatial resolution is high
-
temporal resolution is poor
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15
Q

magneto-ecephalography (MEGs)

+ & -

A

uses SQUID. measures the magnetic fields produced by the brain’s electrical activity
+
high temporal resolution
moderate spatial resolution
skull is transperent to magnetic fields no distortion like ERPs
-
expensive
Ss must maintain uncomfortable position for long time
new & complicated technology

16
Q

selectivity

A

FOCUSED attention (how effectively can we select one input and ignore other?)

17
Q

dichotic listening task and shadowing results

A

only PHYSICAL CHARACTERISTICS are processed in the unattended message

18
Q

Broadbent’s filter model (bottleneck)

A

selective filter between sensory register and STM

  • prevents overloading of STM selection on basis of physical/perceptual characteristics
  • later [semantic] processing for inputs remaining in filter

consistent with cherry (physical unattended processed)
inconsistant with moray; cocktail party

19
Q

treisman’s attenuation model (bottleneck)

A

an ATTENUATOR turns down the processing of unattended info
- processed info is depended on context [what you’re listening out for]
- partially processed info exceed threshold of conscious awareness
explain MORAY; meaningful context reduces threshold

20
Q

deutch & deutch’s late selection model (bottleneck)

A

info is analysed fully without attention, bottleneck is later at selection for action (response)
- cannot shadow 2 messages

21
Q

which 2 models explain both theories … bottlenecks

A

attenuation and late selection

22
Q

treisman & rileys dichotic lsitening task experiement showed which model to be more effective

A

suported the attenuation model.

turned down the proccessing in unattended message

23
Q

flexible bottleneck view

A

location of bottleneck is flexible.

slection occurs as early in processing as possible to minimise demands on capacity

24
Q

results of johnston and wilsons dichotic listening task experiment with target and non target words (organ)

A

meaning of (non target) was processed when attention was divided over two ears but not when attention was focused on the other ear

25
Q

how is automaticity developed

A

practice

26
Q

charaacteristics of automaticity

A

fast
require less attentional capacity (can perform other task simultaneously)
inflexible
unavoidable

27
Q

ain finding of shiffrin and schneiders experiemnt of target detection (automaticity)

A

automatic processes are unavoidable

28
Q

logan’s instance theory

A

automaticity is memory retrieval
a single-step direct-access retreival from a memory episide rather than application of rules (e.g., 1+1 don’t think of rules of algorithm)