tachistoscope

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ta·chis·to·scope

(tă-kis'tŏ-skōp),
An instrument to determine the shortest time necessary for an object to be perceived.
[G. tachistos, very rapid, fr. tachys, rapid, + skopeō, to view]
Farlex Partner Medical Dictionary © Farlex 2012

tachistoscope

(tă-kĭs′tə-skōp′, tə-)
n.
An apparatus that projects a series of images onto a screen at rapid speed to test visual perception, memory, and learning.

ta·chis′to·scop′ic (-skŏp′ĭk) adj.
The American Heritage® Medical Dictionary Copyright © 2007, 2004 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved.

tachistoscope 

An instrument that presents visual stimuli for a brief and variable period of time (usually less than 0.1 s).
Millodot: Dictionary of Optometry and Visual Science, 7th edition. © 2009 Butterworth-Heinemann
References in periodicals archive ?
Obsessive Compulsives tend to use rationalization and they tend to use less repression than do Hysterics, and Obsessive Compulsives tend to perceive tachistoscopically presented threatening stimuli more readily than neutral stimuli (Byrne, 1961; Lazarus et al., 1951).
The IT paradigm is a visual discrimination task in which two vertical lines of different length are presented tachistoscopically to the participant (involving subsequent masking of the stimulus).
They attempted to guess target pictures tachistoscopically exposed for a fraction of a second.
The target was presented to the agent either tachistoscopically for 1 ms or was shown for 10 min prior to the ganzfeld.