Journal ArticleDOI
Extrastriate body area in human occipital cortex responds to the performance of motor actions.
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TLDR
Functional magnetic resonance imaging evidence that the EBA is strongly modulated by limb (arm, foot) movements to a visual target stimulus, even in the absence of visual feedback from the movement is reported.Abstract:
A region in human lateral occipital cortex (the 'extrastriate body area' or EBA) has been implicated in the perception of body parts. Here we report functional magnetic resonance imaging (fMRI) evidence that the EBA is strongly modulated by limb (arm, foot) movements to a visual target stimulus, even in the absence of visual feedback from the movement. Therefore, the EBA responds not only during the perception of other people's body parts, but also during goal-directed movements of the observer's body parts. In addition, both limb movements and saccades to a detected stimulus produced stronger signals than stimulus detection without motor movements ('covert detection') in the calcarine sulcus and lingual gyrus. These motor-related modulations cannot be explained by simple visual or attentional factors related to the target stimulus, and suggest a potentially widespread influence of actions on visual cortex.read more
Citations
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Journal ArticleDOI
Co-Planar Stereotaxic Atlas of the Human Brain—3-Dimensional Proportional System: An Approach to Cerebral Imaging, J. Talairach, P. Tournoux. Georg Thieme Verlag, New York (1988), 122 pp., 130 figs. DM 268
Journal ArticleDOI
Spontaneous neuronal activity distinguishes human dorsal and ventral attention systems
TL;DR: It is demonstrated that the neuroanatomical substrates of human attention persist in the absence of external events, reflected in the correlation structure of spontaneous activity.
Journal ArticleDOI
Social cognition and the brain: a meta-analysis.
TL;DR: The results suggest that inferring temporary states such as goals, intentions, and desires of other people-even when they are false and unjust from the authors' own perspective--strongly engages the temporo-parietal junction (TPJ) and the medial prefrontal cortex (mPFC) in social cognition.
Journal ArticleDOI
Seeing or Doing? Influence of Visual and Motor Familiarity in Action Observation
Beatriz Calvo-Merino,Julie Grèzes,DE Glaser,Richard E. Passingham,Richard E. Passingham,Patrick Haggard +5 more
TL;DR: The first neuroimaging study to distinguish whether this "mirror system" uses specialized motor representations or general processes of visual inference and knowledge to understand observed actions is reported, showing that mirror circuits have a purely motor response over and above visual representations of action.
Journal ArticleDOI
Breakdown of Functional Connectivity in Frontoparietal Networks Underlies Behavioral Deficits in Spatial Neglect
Biyu J. He,Abraham Z. Snyder,Justin L. Vincent,Adrian A. Epstein,Gordon L. Shulman,Maurizio Corbetta +5 more
TL;DR: Brain network integrity in patients with neglect was examined by measuring coherent fluctuations of fMRI signals (functional connectivity) and disconnection of the white matter tracts connecting frontal and parietal cortices was associated with more severe neglect and more disrupted functional connectivity.
References
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Journal ArticleDOI
Co-Planar Stereotaxic Atlas of the Human Brain—3-Dimensional Proportional System: An Approach to Cerebral Imaging, J. Talairach, P. Tournoux. Georg Thieme Verlag, New York (1988), 122 pp., 130 figs. DM 268
Journal ArticleDOI
Premotor cortex and the recognition of motor actions.
TL;DR: It is suggested that the development of the lateral verbal communication system in man derives from a more ancient communication system based on recognition of hand and face gestures.
Research report Premotor cortex and the recognition of motor actions
TL;DR: In the monkey premotor cortex there are neurons that discharge both when the monkey performs an action and when he observes a similar action made by another monkey or by the experimenter as mentioned in this paper.
Journal ArticleDOI
Neurophysiological mechanisms underlying the understanding and imitation of action.
TL;DR: Evidence for the existence of a system, the 'mirror system', that seems to serve this mapping function in primates and humans is discussed, and its implications for the understanding and imitation of action are explored.