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]

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.

tachistoscope

[təkis′təskōp′]
Etymology: Gk, tachistos, rapid, skopein, to view
a device used to increase the speed of visual perception by displaying visual stimuli only extremely briefly.

tachistoscope 

An instrument that presents visual stimuli for a brief and variable period of time (usually less than 0.1 s).
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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.
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.
In one, the target was presented to the sender for 10 minutes; in the other it was presented tachistoscopically for 1 millisecond.