There are many methods for studying the physiology of the brain. ________ is the technique involving subtraction whereby brain activity is compared between baseline and stimulation measurements.
A) Convergence
B) Single unit recording
C) Positron emission tomography
D) Mental chronometry

Question

Quizplus · Accepted Answer

The technique described in the question is called subtractive method and is most commonly used in functional imaging techniques such as positron emission tomography (PET). Choice A (Convergence) refers to the process by which multiple inputs converge onto a single neuron. Choice B (Single unit recording) is a technique that records the activity of a single neuron using an electrode. Choice D (Mental chronometry) is the measurement of the time course of information processing in the brain, typically using behavioral reactions as a measure. While all of these methods can be used to study the brain, only PET is specifically mentioned in the question as the technique that involves comparing brain activity between baseline and stimulation measurements.

There Are Many Methods for Studying the Physiology of the Brain