TY  - JOUR
PY  - 1984//
TI  - Automatic aftereffects in two-choice reaction time: a mathematical representation of some concepts
JO  - Journal of experimental psychology: human perception and performance
A1  - Soetens, E.
A1  - Deboeck, M.
A1  - Hueting, J.
SP  - 581
EP  - 598
VL  - 10
IS  - 4
N2  - A mathematical model is developed to describe sequential effects in two-choice reaction time experiments with a short response-stimulus interval. Evidence is briefly discussed that in conditions with short response-stimulus intervals, automatic aftereffects dominate sequential effects, and the influence of subjective expectancy can be neglected. In these conditions the model premises three components of automatic aftereffects--facilitation, inhibition, and noise, with a common decay factor. Influence of response-stimulus interval and practice on sequential effects are examined and related to parameter changes in the proposed single-decay model. The decrease of automatic aftereffects with increasing response-stimulus interval is primarily ascribed to an increasing decay factor. The parameter representation of the model also clarifies the issue of the disappearance of automatic aftereffects with practice. It shows a gradual fading of inhibition in the initial stages of practice, together with a slower decrease of the facilitation effect. The single-decay model provides a satisfactory explanation for the processes involved in compatible two-choice reaction time with short response-stimulus interval.<p /> <p>Language: en</p> 
LA  - en
SN  - 0096-1523
UR  - http://dx.doi.org/
ID  - ref1
ER  -