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Titolo:
REPRESENTATION OF ORIENTATION AND SPATIAL-FREQUENCY IN PERCEPTION ANDMEMORY - A CHOICE REACTION-TIME ANALYSIS
Autore:
MAGNUSSEN S; IDAS E; MYHRE SH;
Indirizzi:
UNIV OSLO,DEPT PSYCHOL,BOX 1094 BLINDERN N-0317 OSLO NORWAY
Titolo Testata:
Journal of experimental psychology. Human perception and performance
fascicolo: 3, volume: 24, anno: 1998,
pagine: 707 - 718
SICI:
0096-1523(1998)24:3<707:ROOASI>2.0.ZU;2-V
Fonte:
ISI
Lingua:
ENG
Soggetto:
SHORT-TERM-MEMORY; VISUAL-CORTEX; ORTHOGONAL ORIENTATIONS; PATTERN-DISCRIMINATION; HUMAN-VISION; SIZE; CONTRAST; INFORMATION; STIMULI; TRANSFORMATION;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Science Citation Index Expanded
Citazioni:
72
Recensione:
Indirizzi per estratti:
Citazione:
S. Magnussen et al., "REPRESENTATION OF ORIENTATION AND SPATIAL-FREQUENCY IN PERCEPTION ANDMEMORY - A CHOICE REACTION-TIME ANALYSIS", Journal of experimental psychology. Human perception and performance, 24(3), 1998, pp. 707-718

Abstract

Discrimination and short-term memory for the orientation of sinusoidal gratings that differed in spatial frequency, and for the spatial frequency of gratings that differed in orientation, were measured in a same-different task with 0-10-s interstimulus intervals (ISI) between test and reference stimuli. introducing a difference between test and reference stimuli on a second dimension, or increasing ISI, did not impair spatial discrimination in terms of accuracy, but choice reaction times for correct decisions were prolonged by both manipulations. Results suggest that perceptual discrimination is based on representations in which orientation and spatial frequency are conjointly coded and that decisions are reached by a serial process scanning multiple-tuned, labeled channels; shea-term memory may involve reactivation of these channels.

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Documento generato il 04/12/20 alle ore 09:46:42