Gestaltzerfall
Visual agnosia / From Wikipedia, the free encyclopedia
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Gestaltzerfall (German for "shape decomposition" or Gestalt decomposition[1]) is a type of visual agnosia and is a psychological phenomenon where delays in recognition are observed when a complex shape is stared at for a while as the shape seems to decompose into its constituting parts. In plain terms, if a subject reads or hears the same term over and over, that term ceases to have any meaning. With regards to kanji, a study has shown that delays are most significant when the characters are of the same size. When characters to recognize are of different sizes, delays are observed only when they are of different patterns.[2]
Gestaltzerfall has also been described as a phenomenon where the output signals from the brain go beyond their expected range.[3]