Question 1

Sperry produced "hemisphere deconnection" in his patients by:

Separating the crossing fibers of the optic chiasm

Bisecting the thalamus

Severing the corpus callosum

Removing the anterior tip of the temporal lobe

Question 2

Evidence suggests that at least some language function occurs in both hemispheres because after surgery subjects can:

Command the non-dominant hand to adopt a specific posture

Comprehend commands given to the "minor hemisphere"

Eat with a fork using either hand

Draw pictures to communicate

Question 3

Phrenologists used lumps on the skull to measure particular facilities because they believed that:

A good knock on the head could be beneficial

Faculties could become stronger with practice

Size matters more than anything else

The skull was flexible

Question 4

Broca and Wernicke used a clinical approach to localization by comparing normal subjects and patients with:

Especially small skull sizes

Strokes or other damage to the brain

Electrodes implanted deeply in the brain

Drug abusers, especially cocaine users

Question 5:

By stimulating different areas of the brain, Fritsch and Hitzig were able to discover:

That connections from the brain to the body are absent at birth

The location of consciousness in the brain

That all areas of the brain are essentially the same

The motor cortex

Question 6

Penfield found that electrical stimulation of the temporal lobe resulted in:

Putting the patient to sleep

Twitching of the contralateral arm and leg

The patient asking for the surgeon to repeat the stimulation

Hallucinations and memory recall

Question 7

Gazzaniga feels that the mind is made up of:

A constellation of independent and semi-independent modules

Two independent consciousnesses that occasionally talk to each other

Nothing that can be measured directly

A unified field of electrical impulses