Dataset Open Access

Effector movement triggers gaze-dependent spatial coding of tactile and proprioceptive-tactile reach targets

Mueller, Stefanie; Fiehler, Katja

The article available under is based on the uploaded dataset.


Reaching in space requires that the target and the hand are represented in the same coordinate system. While studies on visually-guided reaching consistently demonstrate the use of a gaze-dependent spatial reference frame, controversial results exist in the somatosensory domain. We investigated whether effector movement (eye or arm/hand) after target presentation and before reaching leads to gaze-dependent coding of somatosensory targets. Subjects reached to a felt target while directing gaze towards one of seven fixation locations. Touches were applied to the fingertip(s) of the left hand (proprioceptive-tactile targets) or to the dorsal surface of the left forearm (tactile targets). Effector movement was varied in terms of movement of the target limb or a gaze shift. Horizontal reach errors systematically varied as a function of gaze when a movement of either the target effector or gaze was introduced. However, we found no effect of gaze on horizontal reach errors when a movement was absent before the reach. These findings were comparable for tactile and proprioceptive-tactile targets. Our results suggest that effector movement promotes a switch from a gaze-independent to a gaze-dependent representation of somatosensory reach targets.

The project was supported by the German Research Foundation: DFG Fi1567/4-1 / TRR 135.
Files (360.0 MB)
Name Size
360.0 MB Download
All versions This version
Views 99
Downloads 11
Data volume 360.0 MB360.0 MB
Unique views 99
Unique downloads 11


Cite as