Iconic store readout of mildly mentally retarded and nonretarded individuals
Mosley, J.L.
American Journal of Mental Deficiency 86(1): 60-66
1981
ISSN/ISBN: 0002-9351 PMID: 7270589 Document Number: 176481
Mildly retarded and nonretarded subjects matched for MA (mental age) and CA (chronological age) were required to report tachistoscopically presented linear arrays of letters differing with respect to the number of letters per array. On some trials a visual mask appeared coincidentally with or at variable intervals following the onset of the letter array. By varying information load and stimulus onset asynchrony and by including a non-mask condition, it was possible to assess the iconic store readout for each of the 3 groups. The mask was influential in disrupting the sensory store readout for all groups and that the low-MA subjects demonstrated a slower sensory store readout relative to the equal-CA group. The retarded subjects demonstrated the slowest sensory store readout.