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Relative contribution of expectancy and immediate arousal to the facilitatory effect of an auditory accessory stimulus
Provedor de dados: Brazilian Journal of Medical and Biological Research
Autores: Del-Fava,F.; Ribeiro-do-Valle,L.E.
An auditory stimulus speeds up a digital response to a subsequent visual stimulus. This facilitatory effect has been related to the expectancy and the immediate arousal that would be caused by the accessory stimulus. The present study examined the relative contribution of these two influences. In a first and a third experiment a simple reaction time task was used. In a second and fourth experiment a go/no-go reaction time task was used. In each of these experiments, the accessory stimulus preceded the target stimulus by 200 ms for one group of male and female volunteers (G Fix). For another group of similar volunteers (G Var) the accessory stimulus preceded the target stimulus by 200 ms in 25% of the trials, by 1000 ms in 25% of the trials and was not...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Priming; Arousal; Alertness; Expectancy; Attention.
Ano: 2004
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2004000800006