In a 2004 study examining the neurological effects of cannabis use, 12 long-term cannabis users (at least seven times a week) and 10 nonusers performed a spatial working memory task while a ___________________________:
A) fMRI machine monitored their brain activity
B) Xray machine monitored their brain activity
C) EEG machine monitored their brain activity
D) research assistant monitored their nonverbal postures

Question

Quizplus · Accepted Answer

fMRI (functional magnetic resonance imaging) machines are used to monitor brain activity by detecting changes in blood flow. This makes it an effective tool for studying the neurological effects of cannabis use. Xray machines cannot monitor brain activity, EEG (electroencephalogram) machines measure electrical activity in the brain but may not be as effective as fMRI for the specific task mentioned in the question, and monitoring nonverbal postures would not provide information on brain activity.

In a 2004 Study Examining the Neurological Effects of Cannabis