Demonstration of an aftereffect occurring in the tactile-kinesthetic domain |
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Authors: | Jean-Louis Juan de Mendoza |
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Affiliation: | (1) Laboratoire de Psychologie Expérimentale et Comparée, Université de Nice, U.E.R. de Lettres et Sciences Humaines, 98 Boulevard Edouard Herriot, B.P. 257, F-06036 Nice-Cedex, France |
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Abstract: | Summary The aim of this work is the demonstration of a tactile-kinesthetic aftereffect. A sequence of stimuli was offered to adult subjects whose task was to compare two weights presented simultaneously to both hands by means of a Piéron gravimeter. In Experiment 1 the inspection stimuli consisted of two successive presentations of unequal weights for a period of 2 × 10 s. The test stimuli consisted of two equal weights rapidly following an inspection stimulus. Control stimuli consisting of two equal weights not preceded by an inspection stimulus were interspersed in the sequence. The results obtained confirm the existence of a contrast effect after presentation of an inspection stimulus. In Experiment 2 the inspection stimuli consisted of a single presentation of two unequal weights for a period of 20 s. The results confirm those of the first experiment and provide data enabling the contrast effect obtained to be interpreted as a Köhler-type aftereffect. In order to avoid confusion with the kinesthetic-figural aftereffect, we propose to call the effect demonstrated here the Gravimetric Aftereffect. |
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