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Reconstruction of the neural representations of the tactile space

Tamè, Luigi, Tucciarelli, Raffaele, Sadibolova, Renata, Sereno, Martin I., Longo, Matthew R. (2019) Reconstruction of the neural representations of the tactile space. In: Interdisciplinary Network of Researchers in Touch, 25 July - 26 July 2019, Nottingham, UK. (Unpublished) (KAR id:98376)


We examined the neural basis of tactile distance perception by analyzing activity patterns induced by tactile stimulation of nine points on a 3 x 3 square grid on the hand dorsum using functional magnetic resonance (fMRI). We used a searchlight approach within pre-defined regions of interests (ROIs) to compute the pairwise Euclidean distances between the activity patterns elicited by tactile stimulation. Then, we used multidimensional scaling (MDS) to reconstruct skin space at the neural level and compare it with skin space at the perceptual level. Our reconstructions of the shape of skin space in contralateral primary somatosensory (SI) and motor (M1) cortices reveal that it is distorted in a way that matches the perceptual shape of skin space. This suggests that early sensorimotor areas are critical to processing tactile distance perception.

Item Type: Conference or workshop item (Poster)
Subjects: B Philosophy. Psychology. Religion > BF Psychology > BF41 Psychology and philosophy
Divisions: Divisions > Division of Human and Social Sciences > School of Psychology
Funders: University of Kent (
Depositing User: Luigi Tame
Date Deposited: 27 Nov 2022 13:30 UTC
Last Modified: 29 Nov 2022 11:57 UTC
Resource URI: (The current URI for this page, for reference purposes)

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