Unit 2: Biological Bases of Behavior

Question 1

paul broca (broca’s area)

Answer 1

broca experimented on a guy named tan who could understand stuff but couldn’t speak. he found damage in the part of the brain nicknamed “broca’s area” that is correlated with language EXPRESSION

Question 2

carl wernicke (wernicke’s area)

Answer 2

found a brain area associated with understanding of language. “wernicke’s area” is correlated with language COMPREHENSION

Question 3

lesions

Answer 3

precise destruction of brain tissue. this practice allowed people to study the consequences of removing, cutting, or applying chemicals to certain parts of the brain

Question 4

roger sperry and michael gazzaniga

Answer 4

studied “split brains” and found that the left and right hemispheres aren’t the same (brain lateralization)

Question 5

computerized axial topography (cat/ct)

Answer 5

passes x-rays through the brain at various angles to show 2 dimensional slices

Question 6

magnetic resonance imaging (mri)

Answer 6

magnetic field and radio waves emit radio frequency signals to determine the density of the tissue

Question 7

electroencephalogram (eeg)

Answer 7

electrodes over the scalp transmit electronic brain signals (evoked potentials) to an encephalogram

Question 8

positron emission tomography (pet)

Answer 8

produces colored graphics based on metabolic activity in a given brain region