Which is correct: Localization of function or distribution of function? Ask students to identify at least two lines of evidence to support each perspective.

Most of what we know of lateralization of function is from split-brain patients whose corpus callossum was intentionally severed to attenuate seizures. This is not the only way one can become split-brained. What other ways do you think there are? (Multiple sclerosis, developmental split-brain syndrome, stroke, tumor, infection).

A researcher is interested in understanding how behavior changes when a certain area of the brain is removed. Rather than performing a lesion study in animals, the researcher wants to temporarily disable the corresponding brain region in humans. Which type of technique would the researcher use?

What region of the brain would likely “light up” under a PET scan when a person performs a digit tapping task?