外文资料--RECOVERYFROMADAPTATIONFORDYNAMICANDSTATICMOTIONAFTEREFFECTSEVIDENCEFORTWOMECHANISMS.pdf

VisionRes. Vol. 36, No. 3, pp. 42L424, 1996 ~ Pergamon Copyright ,(: 1996Elsevier Science Ltd 0042-6989(95)00111-5 Printed in Great Britain. All rights reserved 0042-6989/96 $15.00 + 0.00 Research Note Recovery from Adaptation for Dynamic and Static Motion Aftereffects: Evidence for Two Mechanisms FRANS A. J. VERSTRATEN,*t R. ERIC FREDERICKSEN,*$ RICHARD J. A. VAN WEZEL,* MARTIN J. M. LANKHEET,* WIM A. VAN DE GRIND* Received 14 April 1994, revised 14 November 1994, infinal fi~rm 31 March 1995 The motion aftereffect (MAE) is an illusory drift of a physically stationary pattern induced by prolonged viewing of a moving pattern. Depending on the nature of the test pattern the MAE can be phenomenally different. This difference in appearance has led to the suggestion that different underlying mechanisms may be responsible and several reports show that this might be the case. Here, we tested whether differences in MAE duration obtained with stationary test patterns and dynamic test patterns can be explained by a single underlying mechanism. We find the results support the existence of (at least) two mechanisms. The two mechanisms show different characteristics: the static MAE (i.e. the MAE tested with a static test pattern) is almost completely stored when the static test is preceded by a dynamic test; in contra