IN 1909 the German psychologist E. R. Jaensch coined the word eidetic (from the Greek eidos—that which is seen) to describe a form of percept-like imagery differing from after-imagery by persisting longer and not requiring a fixed gaze for its formation. It can occur in relation to a complex stimulus pattern and its vivid details are described in the present tense while being seen projected on some external surface. The colouring of this image is always positive and even the afterimage to a small homogenous colour patch is typically positive for the eidetic individual.
KeywordsMental Imagery Binocular Rivalry Stimulus Picture Retarded Child Original Stimulus
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