Neuroscience 2004 Abstract
| Presentation Number: | 487.6 |
|---|---|
| Abstract Title: | Action observation in the monkey investigated using functional magnetic resonance imaging. |
| Authors: |
Nelissen, K.*1
; Buccino, G.2
; Vanduffel, W.1,3
; Rizzolatti, G.2
; Orban, G. A.1
1Labo voor Neuro- en Psychofysiologie, Katholieke Universiteit Leuven, Leuven, Belgium 2Italy, Herestraat 49, 3000, 3Dipartimento di Neuroscienze, Herestraat 49, 3000, |
| Primary Theme and Topics |
Sensory Systems - Vision -- Visual cortex: Perception and action |
| Secondary Theme and Topics | Sensory Systems<br />- Vision<br />-- Visual cortex: Motion and depth |
| Session: |
487. Visual Cortex: Perception and Action Slide |
| Presentation Time: | Monday, October 25, 2004 2:15 PM-2:30 PM |
| Location: | San Diego Convention Center - Room 28C |
| Keywords: | FMRI, MACAQUE, MOTION PERCEPTION, PREMOTOR |
Neurons responding to the observation of actions performed by others have been described in the superior temporal sulcus (STS), parietal area PF, and prefrontal area F5 (see Rizzolatti and Craighero, Ann Rev Neurosci., 2004). In the present study we defined the whole cortical circuit underlying action observation, using contrast-enhanced fMRI in awake macaques. Three macaques (Macaca mulatta) were scanned (1.5Tesla; Siemens Sonata; MION) while they viewed video-sequences of grasping actions. These included object directed human hand actions, human actions using tools, actions performed by a robot hand and mimed human actions. As a control either static images or phase-scrambled sequences were presented.
Comparing human actions with their static or phase-scrambled controls, revealed activations throughout the lower bank and the middle part of the upper bank of the STS, in the anterior part of the intraparietal sulcus, extending sometimes laterally on the parietal convexity, and in the posterior bank, fundus and anterior bank of the inferior branch of the arcuate sulcus. In many sites along the banks of the arcuate sulcus object-directed actions evoked more activity than mimed actions. Actions performed by a human hand and a robot hand yielded similar responses in the anterior and posterior banks of the arcuate sulcus. These observations fit the description of the functional properties of F5 mirror neurons (Gallese et al. Brain,1996).
Comparing human actions with their static or phase-scrambled controls, revealed activations throughout the lower bank and the middle part of the upper bank of the STS, in the anterior part of the intraparietal sulcus, extending sometimes laterally on the parietal convexity, and in the posterior bank, fundus and anterior bank of the inferior branch of the arcuate sulcus. In many sites along the banks of the arcuate sulcus object-directed actions evoked more activity than mimed actions. Actions performed by a human hand and a robot hand yielded similar responses in the anterior and posterior banks of the arcuate sulcus. These observations fit the description of the functional properties of F5 mirror neurons (Gallese et al. Brain,1996).
Supported by EU Mirror Project, GSKE, GOA 2000/11
Sample Citation:
[Authors]. [Abstract Title]. Program No. XXX.XX. 2004 Neuroscience Meeting Planner. San Diego, CA: Society for Neuroscience, 2004. Online.
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