Site of stimulation effects on the prevalence of the tactile motion aftereffect

PJ Planetta, P Servos - Experimental brain research, 2010 - Springer
PJ Planetta, P Servos
Experimental brain research, 2010Springer
The motion aftereffect (MAE) refers to the apparent motion of a stationary stimulus following
adaptation to a continuously moving stimulus. There is a growing consensus that the fast
adapting (FA) rather than the slowly adapting (SA) afferent units mediate the tactile version
of the MAE. The present study investigated which FA units underlie the tactile MAE by
measuring its prevalence, duration, and vividness on different skin areas that vary in their
composition of FA units. Specifically, the right cheek, volar surface of the forearm, and volar …
Abstract
The motion aftereffect (MAE) refers to the apparent motion of a stationary stimulus following adaptation to a continuously moving stimulus. There is a growing consensus that the fast adapting (FA) rather than the slowly adapting (SA) afferent units mediate the tactile version of the MAE. The present study investigated which FA units underlie the tactile MAE by measuring its prevalence, duration, and vividness on different skin areas that vary in their composition of FA units. Specifically, the right cheek, volar surface of the forearm, and volar surface of the hand were adapted using a ridged cylindrical drum, which rotated at 60 rpm for 120 s. Although there was no difference in duration or vividness between the skin surfaces tested, the tactile MAE was reported twice as often on the hand compared to the cheek and forearm, which did not differ significantly from one another. This suggests that the FA I units in the glabrous skin and the hair follicle and/or the FA I and field units in the hairy skin contribute to the tactile MAE.
Springer
以上显示的是最相近的搜索结果。 查看全部搜索结果