Read-out times from iconic memory in normal and retarded adolescents.
The method limits was used to obtain an estimate of read-out times for a sample of 12 normal and 12 retarded subjects matched on chronological age. The procedure required tachistoscopic presentation of a stimulus array (2, 4, or 6 digits) for a variable duration, followed by a post-stimulus. The subject's task was to recall the digit indicated by the cue. The results indicated that read-out time (a) increased as the number of digits increased, (b) was longer for retardates relative to normals, and (c) decreased with practice for both intelligence groups. The implications of a read-out deficit in retarded individuals were discussed.
D000293:Adolescent; D003463:Cues; D005556:Form Perception; D006801:Humans; D007257:Information Theory; D008607:Intellectual Disability / Q000150:complications*; D007360:Intelligence; D008570:Memory, Short-Term; D011214:Practice, Psychological; D013997:Time Factors; D014796:Visual Perception