Extrastriate cortex

Question 1

The dorsal-dorsal stream processes ____ information. Damage in this area results in optic taxis which is the inability to point to or reach for a visual target. In comparison, the ventral-dorsal stream, which includes the _____ appears to play a role in space perception as well as action organization

Answer 1

action; MT

Question 2

V4 is responsible for _____ perception. Cells in the IT cortex respond to complex forms including faces. Both V4 and IT are part of the ____ processing

Answer 2

color; ventral

Question 3

Area MT/V5 is a component of the _____ processing stream and is well suited for the encoding of ______

Answer 3

dorsal; motion

Question 4

________result from the adaptation of direction specific motion detectors

Answer 4

MAEs (motion after effect)

Question 5

Cells in ____ respond best to sophisticated, albeit basic, shapes that could serve as building blocks to construct even more complex forms.

Answer 5

IT

Question 6

The area of monkey cortex that is called IT is probably equivalent to the _____ in humans

Answer 6

lateral occipital complex; responding well to objects

Question 7

The ____ responds well to faces but not to other objects. The _____ responds well to objects but not to faces

Answer 7

fusiform face area; parahippocampal

Question 8

What is top down attention

Answer 8

the observer decides what to pay attention to.

Question 9

what is bottom up attention

Answer 9

attention caused by an external stimulus

Question 10

what is serial processing

Answer 10

where we direct our spotlight of attention on each object of interest to see if its available.

Question 11

what is change blindness

Answer 11

Where we can’t see the difference between two images.

Question 12

Cells in striate cortex don not demonstrate __ ____ attention

Answer 12

top down

Question 13

Extrastriate lesions can lead to visual agnosia which refers to:

Answer 13

inability to recognize objects

Question 14

What does akinetopsia refer to

Answer 14

defect in the perception of motion

Question 15

What does achromatopsia refer to

Answer 15

pt has normal complement of cones but is unable to distinguish hues secondary to an extra striate lesion.

Question 16

what is simultagnosia

Answer 16

pt may not be able to perceive more than one object at a time.

Question 17

What is balint’s syndrome

Answer 17

a condition in which there is typically bilateral damage to the parietal lobes.

Question 18

what is synesthesia

Answer 18

cortical modules appear to be abnormally linked to each other such that stimulation of one sense results in the activation of another.

Question 19

V4 and IT are part of the ____ processing stream

Answer 19

ventral

Question 20

MT is part of the _____ processing stream

Answer 20

dorsal

Question 21

V2 encodes subjective contour which is predominantly ____ pathway

Answer 21

magno

Question 22

Thick stripes refer to _____ pathway, interstripes/pale stripes refer to ______ pathway

Answer 22

magno; parvo

Question 23

V2 maintains orientation, direction, disparity, subjective contour, and ____ motion

Answer 23

pattern

Question 24

V2 goes to V4 which encodes color information, orientation, and ___ ____ patterns

Answer 24

non cartesian

Question 25

Fascial information is relayed to _____ cortex in the AIT.

Answer 25

prefrontal; interprets what all the information means/ what the face is

Question 26

Trace the ventral pathway

Answer 26

GC –> LGN –> V1 –> V2 –> V4 –>PIT –> AIT/CIT

Question 27

Trace the dorsal pathway

Answer 27

GC –> LGN –> V1 –> V2 –> V5/MT –> MST –> PP

Question 28

What is responsible for encoding pattern motion and has certain cells highly tuned to image selectivity.

Answer 28

MT

Question 29

There is cross talk between MT and ____, but no cross talk after this

Answer 29

V4

Question 30

What do cells 1, 2, and 3 of MT do?

Answer 30

Cell 1: responds to specific face
Cell 2: Responds to both face and what the person is wearing
Cell 3: Respond to individual and another individual