lecture 19 Flashcards

attention

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1
Q

3 networks of attention

A

alerting, orienting, executive

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2
Q

alerting network

A

arousal and sensitivity to stimuli, attentional capture

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3
Q

locations associated with alerting

A

locus coeruleus, frontal and parietal cortex, stimuli alerts the forebrain

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4
Q

neurotransmittier for alerting network

A

norepinephrine

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5
Q

orienting network

A

moving attention from place to place, motor control, prioritizes one sense over another or location in space

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6
Q

orienting neurotransmitter

A

acetylcholine

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7
Q

locations associated with orienting network

A

superior parietal, TPJ, frontal eye fields, superior colliculus, pulvinar

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8
Q

dorsal orienting network

A

right lateralized, top-down directing of attention towards a specific object
goal-oriented selective attention

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9
Q

ventral orienting network

A

syncs current activity with bottom-up incoming sensory info, reorienting

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10
Q

executive network

A

determine what you want to pay attention to, self control and regulation, task management

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11
Q

locations associated with executive network

A

anterior cingulate and insula, basal ganglia

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12
Q

executive network neurotransmitter

A

dopamine

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13
Q

exeuctive top-down processing networks (2)

A

dorsolateral-prefrontal-cortex-parietal network (dlPFCP)
and
anterior cingulate/medial-frontal-anterior insula network (aCI)

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14
Q

dlPFCP

A

active at beginning of task, starter, moment-to-moment task

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15
Q

aCI

A

remains active throughout task, finisher, task set maintenance in continuing and finishing a task

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16
Q

T/F
activity is correlated between the two executive networks

A

false, but activity in areas in a network are highly correlated

17
Q

stress affects self control, regulation and ____

A

attentional tasks

18
Q

cognition and emotions are controlled by activity from where

A

the lateral prefrontal and cingulate regions

19
Q

alerting related disorders

A

Aging (sleep disorders), and ADHD

20
Q

Orienting related disorders

A

autism (inability to disengage), PTSD, contralateral neglect (orienting to contralesional space)

21
Q

executive network related disorders

A

anxiety, depression, OCD, personality disorders, schizophrenia, substance abuse

22
Q

hypothesis of attention

A

neuronal synchrony, timing of action potentials have input from two neurons arriving at same target at same time, and summed to reach threshold for action potential

23
Q

inattention blindness

A

failure to notice something while performing a task

24
Q

change blindness

A

subjects routinely fail to notice small, unexpected changes in environment

change is not salient enough to alert to the stimuli

25
Q

attentional blink

A

when paying attention to to something but we miss a second stimulus

early-stage filtering

26
Q

integrated info theory

A

consciousness is made up of distinct experiences that are all unified ?

27
Q

binding in consciousness

A

unifies arousal, perception, attention, and working memory
thought to sync activity in those networks for that relative time of the conscious experience