Chap 7

Question 1

Perception

Answer 1

We assume what a stimulus is based on prior experience in the world 

Question 2

The binding problem

Answer 2

How complex stimuli are perceived as integrated holes
Theories
1 . An area of the cortex at the top of social hierarchy gets input from multiple sensory systems to form a single perception

2. Constant exchange of information between the sensory cortisol within in cross sensory modalities. 

Question 3

Selective attention

Answer 3

The ability to focus on a small subset of stimuli in an environment 

Question 4

Endogenous attention

Answer 4

Driven by internal processes
Top - down

Question 5

Exogenous attention

Answer 5

Driven by events in environment
Bottom - up

Question 6

Change blindness

Answer 6


Showing people to photographs identical in every aspect, except one if allowed a brief delay people have difficulty scene change 

Question 7

Neural mechanisms of attention

Answer 7

Top down processing is in the prefrontal lobe and posterior parietal cortex

Attention increases, neural activity in neurons in sensory association areas

Question 8

Corbetta ET AL (1990)

Answer 8

Attention to shape and color produced increased activity, ventral stream attention to movement increase activity and dorsal stream

Question 9

Overt vs covert

Answer 9

Over attention- eyes and attention on same object and location can tell where someone is attending

Covert attention - attending to a location, different than where eyes are focused in peripheral vision 

Question 10

Frontal eye fields

Answer 10

Is active during eye movement and during overt attentional shifts

Question 11

Stmultanagnisia

Answer 11

Difficulty attending to more than one object at a time occurs due to damage to the posterior parietal cortex