well documented in advertising, the advertising community dismisses such charges with the statement to the effect that overactive imaginations can see or hear anything that they want to see or hear in any advertisement (Key, 1989).
A tachistoscope is a device which is used with a cine screen or a light box to flash words or pictures at high speed (Key, 1989). High speed tachistoscopes (which can flash images at times of 1/3000 of a second or less, are rarely used commercially, because such high speed flashes cannot be edited into film or videotape (Key, 1989). The high speed devices, however, are widely used in psychiatric experiments.Slow speed tachistoscopes (which flash images at speeds in a range from 1/10 second to 1/150 second) are used commercially, because such images can be edited into film and videotape. Such editing produces so called quick cuts, which are also known as metacontrast and background making (Key, 1989). Quick cuts are visible to the conscious mind; ho
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