Effects of inter-signal interval regularity on increase in reaction time in a one hour auditory monitoring task

A 1-hour reaction time (RT) task was used to examine if inter-signal interval (ISI) regularity affected rate of increase in RT. Twelve Ss participated in a condition with regular ISI of 7.5 sec and in a condition with ISIs varying between 4 and 11 sec. It was found that ISI regularity affected level...

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Bibliographic Details
Published in:Acta psychologica 1974-01, Vol.38 (6), p.455-460
Main Authors: Lisper, Hans-Olof, Törnros, Jan
Format: Article
Language:English
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Summary:A 1-hour reaction time (RT) task was used to examine if inter-signal interval (ISI) regularity affected rate of increase in RT. Twelve Ss participated in a condition with regular ISI of 7.5 sec and in a condition with ISIs varying between 4 and 11 sec. It was found that ISI regularity affected level of RT and rate of increase in RT. The increase in RT was greatest for the irregular ISIs. The results were interpreted in terms of temporal predictability and arousal.
ISSN:0001-6918
1873-6297
DOI:10.1016/0001-6918(74)90005-5