Institute of Cognitive Neuroscience, Department of Psychology, University College London, 17 Queen Square, London WC1N 3AR, United Kingdom; Department of Forensic and Neurodevelopmental Sciences, Institute of Psychiatry, Psychology and Neuroscience, King's College London, De Crespigny Park, London SE5 8AF, United Kingdom; Department of Psychological Sciences, Birkbeck College London, Malet Street, London WC1E 7HX, United Kingdom. Electronic address: eamonn.walsh@kcl.ac.uk.
1 paper in the library · 13 citations · publishing 2015
A person born without a left hand and arm (co-author CL) reported when she experienced the intention to press a key with her right hand or her phantom left hand. EEG recordings showed typical beta-band power reductions before actual right-hand movements and beta rebound afterward. When she prepared but then cancelled a movement, a left frontal increase in spectral power appeared near the time of the perceived intention to move. The same neural signatures of positive and inhibitory volition were present when she prepared and inhibited movements with her phantom left hand. These signals matched those previously reported in 14 healthy volunteers.