attention Flashcards

1
Q

attention

A

narrowing or focusing awareness selectively to a part of the sensory environment or to a class of stimuli

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2
Q

consciousness

A

synonymous at primary level with awareness, and at secondary level with awareness of awareness (first person experience of events you are aware of)

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3
Q

attention is primarily a ____ process

A

top-down

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4
Q

is attention selective?

A

yes, from specific part of sensory world (point in space or an object)

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5
Q

is consciousness selective?

A

no, summarizes all info pertinent to the individual and its environment

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6
Q

alerting network

A

reticular activating system (RAS), locus coeruleus (noradrenaline)

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7
Q

alerting network works to prepare what

A

alertness, especially in prefrontal and posterior parietal cortex, for detecting stimuli rapidly

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8
Q

where does alerting network prepare

A

prefrontal and posterior parietal cortex

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9
Q

orienting network

A

acetylcholine! prioritizes sensory input by selecting a sensory modality or location in space

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10
Q

locus coereleus has what

A

noradrenaline

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11
Q

orienting network has what

A

acetylcholine

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12
Q

what does orienting network prioritize

A

sensory input

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13
Q

dorsal attention system

A

top-down visuospatial; Right-lateralized (neglect syndrome)

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14
Q

default mode network

A

thinking about one’s past, the future, or mind wondering

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15
Q

where is default mode network?

A

mPFC, PCC, medial temporal areas

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16
Q

salience network

A

most active when a behavioral change is needed

17
Q

if salience network is not functioning properly…

A

default network shows excessive activity

18
Q

effects of excessive activity in default network

A

lapses in attention in ACC and insula

19
Q

attention networks

A

dorsal attention system, fronto-parietal executive networks

20
Q

fronto-parietal executive networks

A

DLPFC (dorso-lateral pre-frontal cortex), IPS (intraparietal sulcus)

21
Q

attentional system induces ____ across a population of neurons that assess some sensory signal

A

synchrony

22
Q

increasing activity in the attention network increase _____ globally

A

brain synchrony

23
Q

increasing activity in the default network may ____

A

have a loss of global synchrony

24
Q

how does our brain choose important events from among all ongoing sensory info?

A

synchrony

25
Q

meditation reduces activity in

A

default mode network

26
Q

meditation increases

A

DM, salience, and central executive network connectivity

27
Q

meditation increases activity in what part of the brain

A

anterior cingulate cortex (ACC)

28
Q

bottom-up

A

stimulus provoking
- i.e., seeing a naked person, Baltimore picture ~ seeing the bright building, consciousness

29
Q

top-down

A

based on own knowledge, experience, expectation, controlling focus
- i.e., seeing someone you’re in love with, Baltimore picture ~ pointing out the aquarium you used to go to, attention