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Published on: June 6, 2025
Errors of somatosensory localisation in a patient with right-hemisphere stroke
Rebekah C White1, Anne M Aimola Davies, Udo Kischka
1Department of Experimental Psychology, University of Oxford, Oxford, UK. Rebekah.White@psy.ox.ac.uk
Abstract:
Following a right-hemisphere stroke, Patient NG could detect somatosensory stimulation that she was unable to localise. With vision precluded, NG systematically mislocalized touch on the little and ring finger of her affected left hand, and reported feeling this touch on the neighbouring rightward finger. This pattern of mislocalization occurred not only when the Examiner administered touch but also when touch was self-administered. We manipulated the relative position of NG's two hands during sensory assessment of the affected hand. When NG's right hand was positioned to the left of her affected hand, NG exhibited improved localisation. Theoretical and clinical implications are discussed.
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