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Titolo:
Attention and size in a global/local task
Autore:
Modigliani, V; Bernstein, D; Govorkov, S;
Indirizzi:
Simon Fraser Univ, Dept Psychol, Burnaby, BC V5A 1S6, Canada Simon Fraser Univ Burnaby BC Canada V5A 1S6 , Burnaby, BC V5A 1S6, Canada CREO Prod, Burnaby, BC, Canada CREO Prod Burnaby BC CanadaCREO Prod, Burnaby, BC, Canada
Titolo Testata:
ACTA PSYCHOLOGICA
fascicolo: 1, volume: 108, anno: 2001,
pagine: 35 - 51
SICI:
0001-6918(200106)108:1<35:AASIAG>2.0.ZU;2-W
Fonte:
ISI
Lingua:
ENG
Soggetto:
SPATIAL-FREQUENCY; LOCAL-LEVELS; HIERARCHICAL STRUCTURE; PRECEDENCE; PERCEPTION; FORM; INTERFERENCE; PATTERNS; STIMULI; FOREST;
Keywords:
local; global; compound letters; attention; size;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Social & Behavioral Sciences
Citazioni:
43
Recensione:
Indirizzi per estratti:
Indirizzo: Modigliani, V Simon Fraser Univ, Dept Psychol, 8888 Univ Dr, Burnaby, BC V5A 1S6, Canada Simon Fraser Univ 8888 Univ Dr Burnaby BC Canada V5A 1S6 ada
Citazione:
V. Modigliani et al., "Attention and size in a global/local task", ACT PSYCHOL, 108(1), 2001, pp. 35-51

Abstract

Two-letter stimuli, consisting of one small letter inside a much larger one tin Experiments 1A, 1B, and 2) or inside a "blob" tin Experiment 3), wereused to examine the role of size difference in global/local tasks. The small letter was placed at locations that avoided contour interactions. The results showed no identity interference. in that the specific identity of thelarge letter did not differentially affect identification of the small one. However. there was evidence of global advantage, in that the presence of a large letter hindered identification of the small one, The magnitude of the global advantage effect, as measured by the difference in performance between the small-single and small-embedded conditions, was largest (about 200 ms reaction time (RT) difference) when the large letters were the same asthe small ones, lower (a 63 ms difference in Experiment 1B. and 89 ms in Experiment 2) when the large letters were unrelated to the small ones, and lowest (a 25 ms difference) when the large stimuli were blobs. It is proposed that the amount of interference depends on the overlap between the features of the large stimuli, as a set, and those of the small ones, also as a set. (C) 2001 Elsevier Science B.V. All rights reserved.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 29/03/20 alle ore 14:34:58