Iconic-memory processing of unfamiliar stimuli by retarded and nonretarded individuals
Hornstein, H.A.; Mosley, J.L.
American Journal of Mental Deficiency 84(1): 40-48
1979
ISSN/ISBN: 0002-9351 PMID: 484605 Document Number: 142015
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.