Partial report: iconic store or two buffers?
Selective recall of a subset of letters from a multiletter array declines systematically with increases in the delay of the partial report cue. The issues addressed were (a) whether such a decline is due to progressive loss of location information or to systematic loss of features and (b) whether partial report is the result of a select-then-identify or an identify-then-select process. Instructing the subjects to guess or not to guess had an effect of intra-array, displacement, and extra-array errors. Emphasizing on recall location affected both intra- and extra-array errors. The interstimulus interval manipulation had an effect on extra-array errors as well as on intra-array errors. These observations are contrary to the suggestions that intra-array errors are due to loss of location information and that extra-array errors are indicative of a joint effect on misidentification due to chance and the ratio of extra-array errors to intra-array errors. Some other results are difficult for a dual-buffer model but can readily be accounted for by the orthodox view of the iconic store.
Chow
S L
SL
Department of Psychology, University of Regina, Saskatchewan, Canada.
D000328:Adult; D001288:Attention; D003463:Cues; D006801:Humans; D011939:Mental Recall; D009949:Orientation; D010364:Pattern Recognition, Visual; D010897:Pitch Discrimination; D012691:Serial Learning; D012858:Size Perception