A tachistoscope is a device that displays an image for a specific amount of time. It can be used to increase recognition speed, to show something too fast to be consciously recognized, or to test which elements of an image are memorable.

What is tachistoscope in psychology?

n. a device that displays (usually by projecting) visual material on a screen for a specific amount of time, usually at very brief intervals. The device is used in experiments concerned with visual perception, recognition speed, and memory. ...

What are tachistoscope used for?

The tachistoscope has been used to test the limits of human visual perception such as determining the minimum exposure time needed for visual apprehension of various stimuli including shapes, colors, letters, words, and numbers.