Cortical Localization

Question 1

The dorsal visual pathway (stream) that runs across the cortex has its origin from signal process through retinal:

Answer 1

parasol (magnocellular) ganglion cells.

Question 2

A lesion of the postcentral gyrus results in

Answer 2

an initial loss of contralateral touch and pain.

Question 3

The primary output of the parietal lobe is directed to

Answer 3

the frontal lobe.

Question 4

The cortical area that registers the direction and velocity of visual targets is located

Answer 4

in the junction of the occipital lobe and inferior parietal lobe.

Question 5

Diagnosed with a stroke, the patient speaks with normal emphasis and rhythm. You can make out an occasional word but the speech makes no sense. You suspect the stroke damaged the patients:

Answer 5

left posterior superior temporal lobe (BA 22).

Question 6

Working memory (the ability to organize thoughts in space and time) takes place in the:

Answer 6

dorsolateral prefrontal cortex.

Question 7

The patient suffered a stroke. He appears normal in all aspect but cannot recognize a picture shown him of Presidents Obama and Reagan. You suspect the stroke damaged his:

Answer 7

inferior temporal-occipital region.

Question 8

The 16-year old patient was a well-behaved, all-A student. Following a motorcycle accident that resulted in minor head trauma (he wasn’t wearing a helmet) his classroom work plummeted and his newly acquired loud and brash behavior has landed him repeatedly in the discipline room. You suspect the head trauma affected his:

Answer 8

prefrontal lobes.