Which of the following is a reliable means by which to determine which side of the brain is dominant for speech?
A) Ask whether an individual is left-handed or right-handed.
B) Watch the direction of eye movement when a person thinks of a purely linguistic question.
C) Assess changes in cerebral blood flow during verbal behavior.
D) Administer a CT scan.
E) Note in which hand the person holds a book while reading aloud.

Question

Quizplus · Accepted Answer

Assessing changes in cerebral blood flow during verbal behavior is the most reliable means of determining which side of the brain is dominant for speech. This is typically done using functional brain imaging techniques such as functional magnetic resonance imaging (fMRI) or positron emission tomography (PET). These techniques allow researchers to see which areas of the brain are most active during verbal tasks, indicating which hemisphere is dominant for language processing. The other options may provide some clues or associations with hemispheric dominance, but they are not as reliable or direct as functional brain imaging.

Which of the Following Is a Reliable Means by Which