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SUMMARY:Neural signatures of voluntary actions and the perception of actio
 n consequences
DTSTART:20120918T110000
DTEND:20120918T120000
DTSTAMP:20260916T153707Z
UID:e98d11a074dd33d04c08e23266527f0d9bf06ddd8ac8e5aa73f29d91
CATEGORIES:Conferences - Seminars
DESCRIPTION:Roy Mukamel\, Ph.D.\nSchool of Psychological Sciences and Sago
 l School of Neuroscience\, Tel-Aviv University\nPerforming an action enta
 ils both the implementation of motor commands and the perception of the c
 orresponding sensory consequences. In my talk\, I will describe electrophy
 siological and fMRI data obtained from human subjects examining neural ac
 tivity related to these aspects of action execution. Previous studies usi
 ng non-invasive techniques\, have demonstrated signatures of neural activ
 ity during performance of voluntary actions that precede the actual movem
 ent by several hundreds of ms – well before the human subject is aware o
 f his impending urge to perform the action. During my talk\, I will discu
 ss the dynamics of neural activity (spiking activity of individual neuron
 s) recorded extra-cellularly from epileptic patients during performance o
 f voluntary button presses. Our data demonstrate that neurons\, mostly in 
 frontal lobe regions display characteristic dynamics (both excitation and
  inhibition) that can be used to predict the impending movement several h
 undred of milliseconds in advance. I will also discuss neural activity re
 lated to passive observation of voluntary actions performed by others\n(e.
 g. mirror neurons) and their anatomical distribution in the human brain. O
 ur data support a much wider distribution of such functional characterist
 ics than previously suggested by primate studies. Finally\, I will descri
 be an ongoing fMRI project in my lab examining activity in auditory corte
 x and its dependence on the identity of the performing agent. Our data sug
 gest that activity in auditory cortex is modulated by motor cortex.
LOCATION:AI.1.153 http://plan.epfl.ch/?lang=fr&room=AI1153
STATUS:CONFIRMED
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