Report order and identification of multidimensional stimuli: a study of event-related brain potentials.
Percept Mot Skills
; 98(3 Pt 2): 1427-37, 2004 Jun.
Article
em En
| MEDLINE
| ID: mdl-15291234
ABSTRACT
An experiment was conducted to investigate the effect of order of report on multidimensional stimulus identification. Subjects were required to identify each two-dimensional symbol by pushing corresponding buttons on the keypad on which there were two columns representing the two dimensions. Order of report was manipulated for the dimension represented by the left or right column. Both behavioral data and event-related potentials were recorded from 14 college students. Behavioral data analysis showed that order of report had a significant effect on response times. Such results were consistent with those of previous studies. Analysis of event-related brain potentials showed significant differences in peak amplitude and mean amplitude at time windows of 120-250 msec. at Fz, F3, and F4 and of 350-750 msec. at Fz, F3, F4, Cz, and Pz. Data provided neurophysiological evidence that reporting dimensional values according to natural language habits was appropriate and less cognitively demanding.
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Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Reconhecimento Visual de Modelos
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Encéfalo
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Potenciais Evocados
Tipo de estudo:
Clinical_trials
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Diagnostic_studies
Limite:
Adult
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Humans
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Male
Idioma:
En
Revista:
Percept Mot Skills
Ano de publicação:
2004
Tipo de documento:
Article