Facilitation of Detectability and Criterion by Automatic Temporal Expectation

Gisele Braga Pinheiro, Luiz E. Ribeiro-do-Valle


The presentation of an auditory stimulus immediately before a visual target stimulus shortens reaction time. This
effect has been attributed to the facilitation of decisional and/or motor processes by automatic temporal
expectation. The present study examined the possibility that automatic temporal expectation also facilitates
sensory processing. Eighteen young adults performed a simple task, which required detecting a threshold
luminance small ring presented at fixation. In half of the trials, a low intensity tone preceded this target stimulus by
200 ms. Accuracy was evaluated for the cue absent and the cue present trials. Detectability (d-prime) was higher
and criterion (C) lower for the cue present condition than for the cue absent trials. These results indicate that
automatic temporal expectation facilitates visual processing and confirm its facilitatory influence on decisional

Full Text:


DOI: http://dx.doi.org/10.5539/ijps.v3n2p171

Copyright (c)

International Journal of Psychological Studies   ISSN 1918-7211 (Print)   ISSN 1918-722X (Online)

Copyright © Canadian Center of Science and Education

Email: ijps@ccsenet.org

To make sure that you can receive messages from us, please add the 'ccsenet.org' domain to your e-mail 'safe list'. If you do not receive e-mail in your 'inbox', check your 'bulk mail' or 'junk mail' folders.