title: Iconic-memory processing of unfamiliar stimuli by retarded and nonretarded individuals.
abstract: The iconic-memory processing of unfamiliar stimuli was undertaken employing a visually cued partial-report procedure and a visual masking procedure. Subjects viewed stimulus arrays consisting of six Chinese characters arranged in a circular pattern for 100 msec. At variable stimulus-onset asynchronies, a teardrop indicator or an annulus was presented for 100 msec. Immediately upon cue offset, the subject was required to recognize the cued stimulus from a card containing a single character. Retarded subjects' performance was comparable to that of MA- and CA-matched subjects. We suggested that earlier reported iconic-memory differences between retarded and nonretarded individuals may be attributable to processes other than iconic memory.
mesh_terms: D000328:Adult; D005556:Form Perception; D006801:Humans; D008607:Intellectual Disability / Q000523:psychology*; D008568:Memory; D010364:Pattern Recognition, Visual; D010470:Perceptual Masking