Investigating crossmodal influence between nociception and vision in the peripersonal space of the limb using temporal order judgments
(2016) IBRO & IRUN Neuroscience forum - Neuronus — Location: Krakow, Poland (22.April.2016)
Files
No attached file found for this publication.
Details
- Authors
- Abstract
- In order to adapt behaviors to a potentially damaging threat, it is crucial to coordinate the perception of the location of the threat in external space and the perception of the location of the damage on the body surface. In this study, we investigate how a nociceptive stimulus applied to the hand affects the perception of visual stimuli occurring near the hand, placed either near or far from the body trunk according to the anteroposterior axis. In a temporal order judgement task, participants judged which of two visual stimuli had been perceived first. Each pair of visual stimuli was preceded by one nociceptive stimulus applied on one of the two hands (unilateral) or two nociceptive stimuli one applied on each hand at the same time (bilateral). Results show that, as compared to the bilateral condition, participant’s judgments were shifted towards the visual stimuli having occurred near the hand on which the nociceptive stimulus was applied, independently of its position in space (near or far from the trunk). These results suggest the existence of cortical representations of each limb that extend slightly from their corporeal boundaries to external space, and are used as an interplay to integrate somatosensory and non-somatosensory information.
- Affiliations
Citations
Vanderclausen, C., Filbrich, L., Alamia, A., & Legrain, V. (2016). Investigating crossmodal influence between nociception and vision in the peripersonal space of the limb using temporal order judgments. IBRO & IRUN Neuroscience forum - Neuronus, Krakow, Poland. https://hdl.handle.net/2078.5/183014