Question

In order to find out what goes on in people's brains during a typical night's sleep, researchers are MOST likely to:

a) Use electroencephalograms (EEGs) and other monitoring equipment
b) Conduct surveys and interviews
c) Analyze dream journals
d) Use functional magnetic resonance imaging (fMRI)

Answer 1

The correct answer is option a) Use electroencephalograms (EEGs) and other monitoring equipment.

Step-by-step explanation:

In order to understand what happens in people's brains during sleep, researchers are most likely to use electroencephalograms (EEGs) and other monitoring equipment. EEGs provide a measure of brain's electrical activity through an array of electrodes placed on the person's head.

This method is particularly useful for measuring brain activity during different sleep stages, such as REM and NREM sleep, by analyzing the frequency and amplitude of brain waves.

Another method used is functional magnetic resonance imaging (fMRI), which can create a map of the most active brain areas during a task, including sleep. While EEGs are excellent for understanding electrical activity, fMRI provides insight into the location of brain activity. By using fMRI, researchers may detect and categorize visual images during dreaming, furthering research in dream analysis.