The effect of irrelevant surround on speeded visual discriminations varying in complexity

Wayne P. Silverman

doi:10.3758/BF03213951

The effect of irrelevant surround on speeded visual discriminations varying in complexity

Wayne P. Silverman

Kennedy Krieger Institute

Research output: Contribution to journal › Article › peer-review

Abstract

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

Original language	English (US)
Pages (from-to)	320-324
Number of pages	5
Journal	Perception & Psychophysics
Volume	15
Issue number	2
DOIs	https://doi.org/10.3758/BF03213951
State	Published - Mar 1974

ASJC Scopus subject areas

Experimental and Cognitive Psychology
Sensory Systems
Psychology(all)

Access to Document

10.3758/BF03213951

Fingerprint Dive into the research topics of 'The effect of irrelevant surround on speeded visual discriminations varying in complexity'. Together they form a unique fingerprint.

Cite this

@article{d9929bc31f374b6a94077d8bd429dd89,

title = "The effect of irrelevant surround on speeded visual discriminations varying in complexity",

abstract = "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",

author = "Silverman, {Wayne P.}",

year = "1974",

month = mar,

doi = "10.3758/BF03213951",

language = "English (US)",

volume = "15",

pages = "320--324",

journal = "Attention, Perception, and Psychophysics",

issn = "1943-3921",

publisher = "Springer New York",

number = "2",

}

TY - JOUR

T1 - The effect of irrelevant surround on speeded visual discriminations varying in complexity

AU - Silverman, Wayne P.

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

UR - http://www.scopus.com/inward/record.url?scp=0040232230&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0040232230&partnerID=8YFLogxK

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 -