Lecture 12

Question 1

Anosagnosia

Answer 1

Denial of illness, in hemispatial neglect refers to denial of the paralysis of one side
Patients will say that their limb is not actually their own (somatoparaphrenia)

Question 2

Top down attention

Answer 2

Brain process says “attend here” and attention responds

Question 3

Bottom up attention

Answer 3

Internal state says “attend here” and the brain responds

Question 4

Example of cat looking at mouse

Answer 4

Hears a click when distracted (looking at mouse) or undistracted
Greater response to the click when undistracted
Implies attention is limited

Question 5

Example of tone changing during circle-around-ball task

Answer 5

Make the task easy or hard
Have a tone playing, and then the tone changes
You attend more to the change when the task is easy
Response to changing tone is called mismatch negativity
Another example of limited attention/attention as a resource

Question 6

Activation in cued area

Answer 6

Not just the stimulus that activates the brain area: if you receive a face cue, the face area of your brain will be activated
Activation even before the stimulus itself

Question 7

Filter theory of attention

Answer 7

Bottle-neck of attention

At some point, stimuli that were not attended to do not pass through the bottle neck

Question 8

Inhibition of return

Answer 8

Shift of attention only lasts a short while
There is a cost to returning to a previously attended location
Won’t attend to the same place twice in close proximity

Question 9

Where does attention control occur in the brain?

Answer 9

All over the place
Visual and other cortices
Inferior parietal lobe (IPL) and dorsolateral prefrontal cortex (DLPFC)

Question 10

Dorsal attentional network

Answer 10

Activated when attention is deployed voluntarily

IPL and frontal eye fields

Question 11

Ventral attentional network

Answer 11

Novel or unexpected stimuli