A device that controls the amount of time a subject is exposed to a visual image is called a _____.
A) tachistoscope
B) pupilometer
C) focalscope
D) rotoscope

Question

Quizplus · Accepted Answer

A tachistoscope is a device that controls the duration of exposure to visual stimuli for experimental purposes, commonly used in studies of perception and attention. A pupilometer measures the size of the pupil and is not related to controlling exposure time. Focalscope and rotoscope are not relevant to controlling exposure time.

A Device That Controls the Amount of Time a Subject