Visual inputs and postural manipulations affect the location of somatosensory percepts elicited by electrical stimulation.

ABSTRACT: The perception of somatosensation requires the integration of multimodal information, yet the effects of vision and posture on somatosensory percepts elicited by neural stimulation are not well established. In this study, we applied electrical stimulation directly to the residual nerves of trans-tibial amputees to elicit sensations referred to their missing feet. We evaluated the influence of congruent and incongruent visual inputs and postural manipulations on the perceived size and location of stimulation-evoked somatosensory percepts. We found that although standing upright may cause percept size to change, congruent visual inputs and/or body posture resulted in better localization. We also observed visual capture: the location of a somatosensory percept shifted toward a visual input wh

SUBMITTER: Christie BP 

PROVIDER: S-EPMC6690924 | biostudies-literature | 2019 Aug

REPOSITORIES: biostudies-literature