TY - JOUR
T1 - The effect of irrelevant surround on speeded visual discriminations varying in complexity
AU - Silverman, Wayne P.
N1 - Copyright:
Copyright 2011 Elsevier B.V., All rights reserved.
PY - 1974/3
Y1 - 1974/3
N2 - To measure the effect of varying stimulus material on visual matching, a three-factor experimental design was employed, with "same"-"different" RT as the main dependent variable. Pairs of sequences of meaningless shapes served as stimuli, varying in discriminability (high or low), complexity (sequence lengths of 1, 2, 5, or 8 shapes), and level of pair difference (identical sequences or sequences with one pair differing). All independent variables significantly affected RT, with (a) high-discriminability stimuli being reacted to faster than low, (b)RT increasing with sequence pair length, and (c)"same"-response RTs interacting with "different"-response RTs. A significant triple-order interaction component implied that, while a single-process self-terminating feature testing model could accommodate data from the low-discriminability condition, the high-discriminability data did not fit this model. The results are taken as support for a dual-process model to account for the data from "same"-"different" RT tasks. epaxtment of
AB - To measure the effect of varying stimulus material on visual matching, a three-factor experimental design was employed, with "same"-"different" RT as the main dependent variable. Pairs of sequences of meaningless shapes served as stimuli, varying in discriminability (high or low), complexity (sequence lengths of 1, 2, 5, or 8 shapes), and level of pair difference (identical sequences or sequences with one pair differing). All independent variables significantly affected RT, with (a) high-discriminability stimuli being reacted to faster than low, (b)RT increasing with sequence pair length, and (c)"same"-response RTs interacting with "different"-response RTs. A significant triple-order interaction component implied that, while a single-process self-terminating feature testing model could accommodate data from the low-discriminability condition, the high-discriminability data did not fit this model. The results are taken as support for a dual-process model to account for the data from "same"-"different" RT tasks. epaxtment of
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U2 - 10.3758/BF03213951
DO - 10.3758/BF03213951
M3 - Article
AN - SCOPUS:0040232230
VL - 15
SP - 320
EP - 324
JO - Attention, Perception, and Psychophysics
JF - Attention, Perception, and Psychophysics
SN - 1943-3921
IS - 2
ER -