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Tachistoscope

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Tachistoscope 

a device for the brief presentation of visual stimuli, such as letters, words, numbers, or geometric figures. Tachistoscopes are used in psychology to determine the speed and accuracy of perception and to study attention.



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It is also an interesting retrospect into the brief history of how subliminal messaging came about and it started in a small base in the Allied camp when British soldiers were exposed to an instrument called the tachistoscope, which was essentially a machine used to flash images to soldiers in quick succession, so that they could be trained in spotting and identifying enemy profiles and vehicles like warplanes.
The children in the middle and lowest performing groups practiced using real and nonsense story words on hand-made tachistoscopes.
These courses utilized state-of-the-art technologies such as tachistoscopes, perceptorscopes and controlled readers to forestall poor reading hygiene, such as regression of eye-movements (Wood, 1997).
 
 
 
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