6/11/2023 0 Comments Iconic memoryTemporal integration has also provided an explanation for some aspects of visual masking 5 and for temporal integration of patterns whose parts were presented sequentially in time 6,7. Integration in iconic memory was convincingly demonstrated in a study where the subjects were required to identify which element in a briefly-displayed array of 16 alphabet characters had been singled out by a temporally trailing bar marker 4. Iconic memory is regarded as having temporal combinatorial properties which allow perceptual integration of two or more sequential displays even if separated by a brief temporal gap. The terms visual persistence or icon are commonly used to refer to the perceptual availability of the decaying contents of the sensory store. This led to the postulation of a short-term visual store, also called iconic memory 2 or sensory register 3, with contents decaying rapidly after the termination of the inducing display. Since the publication of Sperling's influential monograph 1 there has been general agreement that a relatively faithful representation of a visual display remains perceptually available for several hundred milliseconds after the distal stimulus has vanished. This suggests that iconic memory can more properly be identified with ongoing neural processes than with the decaying contents of a sensory store. THE duration of visual persistence (iconic memory) is inversely related, up to a point, to the duration of the inducing stimulus.
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