, Volume 66, Issue 2, pp 264-278

Endogenous temporal orienting of attention in detection and discrimination tasks

Abstract

Endogenous temporal-orienting effects were studied using a cuing paradigm in which the cue indicated the time interval during which the target was most likely to appear. Temporal-orienting effects were defined by lower reaction times (RTs) when there was a match between the temporal expectancy for a target (early or late) and the time interval during which the target actually appeared than when they mismatched. Temporal-orienting effects were found for both early and late expectancies with a detection task in Experiment 1. However, catch trials were decisive in whether temporal-orienting effects were observed in the early-expectancy condition. No temporal-orienting effects were found in the discrimination task. In Experiments 2A and 2B, temporal-orienting effects were observed in the discrimination task; however, they were larger when temporal expectancy was manipulated between blocks, rather than within blocks.

This research was financially supported by the Spanish Ministerio de Educación y Cultura with Predoctoral Grant FPU-AP2000-3167 to the first author and Research Grants MCyT, BSO2000-1503 to J.L. and MCyT, BSO2000-1411-C02 to P.T.
Note—This article was accepted by the previous editorial team, headed by Neil Macmillan.