Lecture 5

Question 1

Attention?

Answer 1

processes enabling person to recruit processes aspects of incoming sensory information more fully than non-selected aspects

Question 2

overt vs covert attention

Answer 2

overt = overt deployment of attention, eye movement
covert = move attention but not eye movement , auditory attention

Question 3

early vs late selection

Answer 3

early = early attentional bottleneck, bit of all sensory input taken into perceptual analysis
late = late attentional bottleneck, perceptual analysis done before attentional bottleneck, focus on a sensory input

Question 4

inattention paradigm

Answer 4

what can be focused covertly (location best covert attention, then colour, then number of shapes, then what shape)

Question 5

endogenous vs exogenous

Answer 5

endogenous = symbolic cues causing attention to be voluntarily pushed from central (arrow), top down
exogenous = attention drawn to location of cue, involuntarily eye movement, usually flash in location, bottom up

Question 6

components / steps of shifting attention

Answer 6

1. disengagement - disengage from current target (damage to parietal lobe = deficient in disengagement)
2. movement - once disengaged, attention free to move and is directed to new target (damage to superior colliculus = deficiency)
3. engagement - after reaching to new target, attention reengaged on new object (damage to thalamus = deficiency)

Question 7

spotlight / zoom metaphor

Answer 7

spotlight = attention focused in finite area moved around to concentrate on what falls under the spotlight
zoom lens = attention has variable spatial scope, wider the lens less focused detail is

Question 8

parallel search vs serial search

Answer 8

parallel search easy to spot out target (covert), serial search have go out of way to find target (overt)

Question 9

object based attention

Answer 9

FFA (fusiform face area)
PPA (parahippocampal place area)
when focusing on face static or moving, FFA, same with PPA

Question 10

spatial neglect

Answer 10

lesion to right side of parietal lobe is more debilitating than left lesion (right covers left field but also covers little right), left only covers right field thats it