Beyond motor scheme: a supramodal distributed representation in the action-observation network.

The representation of actions within the action-observation network is thought to rely on a distributed functional organization. Furthermore, recent findings indicate that the action-observation network encodes not merely the observed motor act, but rather a representation that is independent from a...

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Autores principales:	Emiliano Ricciardi, Giacomo Handjaras, Daniela Bonino, Tomaso Vecchi, Luciano Fadiga, Pietro Pietrini
Formato:	article
Lenguaje:	EN
Publicado:	Public Library of Science (PLoS) 2013
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/a57e3b6776ab47c19df4890440cae7f6
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spelling	oai:doaj.org-article:a57e3b6776ab47c19df4890440cae7f62021-11-18T07:54:45ZBeyond motor scheme: a supramodal distributed representation in the action-observation network.1932-620310.1371/journal.pone.0058632https://doaj.org/article/a57e3b6776ab47c19df4890440cae7f62013-01-01T00:00:00Zhttps://www.ncbi.nlm.nih.gov/pmc/articles/pmid/23472216/?tool=EBIhttps://doaj.org/toc/1932-6203The representation of actions within the action-observation network is thought to rely on a distributed functional organization. Furthermore, recent findings indicate that the action-observation network encodes not merely the observed motor act, but rather a representation that is independent from a specific sensory modality or sensory experience. In the present study, we wished to determine to what extent this distributed and 'more abstract' representation of action is truly supramodal, i.e. shares a common coding across sensory modalities. To this aim, a pattern recognition approach was employed to analyze neural responses in sighted and congenitally blind subjects during visual and/or auditory presentation of hand-made actions. Multivoxel pattern analyses-based classifiers discriminated action from non-action stimuli across sensory conditions (visual and auditory) and experimental groups (blind and sighted). Moreover, these classifiers labeled as 'action' the pattern of neural responses evoked during actual motor execution. Interestingly, discriminative information for the action/non action classification was located in a bilateral, but left-prevalent, network that strongly overlaps with brain regions known to form the action-observation network and the human mirror system. The ability to identify action features with a multivoxel pattern analyses-based classifier in both sighted and blind individuals and independently from the sensory modality conveying the stimuli clearly supports the hypothesis of a supramodal, distributed functional representation of actions, mainly within the action-observation network.Emiliano RicciardiGiacomo HandjarasDaniela BoninoTomaso VecchiLuciano FadigaPietro PietriniPublic Library of Science (PLoS)articleMedicineRScienceQENPLoS ONE, Vol 8, Iss 3, p e58632 (2013)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Emiliano Ricciardi Giacomo Handjaras Daniela Bonino Tomaso Vecchi Luciano Fadiga Pietro Pietrini Beyond motor scheme: a supramodal distributed representation in the action-observation network.
description	The representation of actions within the action-observation network is thought to rely on a distributed functional organization. Furthermore, recent findings indicate that the action-observation network encodes not merely the observed motor act, but rather a representation that is independent from a specific sensory modality or sensory experience. In the present study, we wished to determine to what extent this distributed and 'more abstract' representation of action is truly supramodal, i.e. shares a common coding across sensory modalities. To this aim, a pattern recognition approach was employed to analyze neural responses in sighted and congenitally blind subjects during visual and/or auditory presentation of hand-made actions. Multivoxel pattern analyses-based classifiers discriminated action from non-action stimuli across sensory conditions (visual and auditory) and experimental groups (blind and sighted). Moreover, these classifiers labeled as 'action' the pattern of neural responses evoked during actual motor execution. Interestingly, discriminative information for the action/non action classification was located in a bilateral, but left-prevalent, network that strongly overlaps with brain regions known to form the action-observation network and the human mirror system. The ability to identify action features with a multivoxel pattern analyses-based classifier in both sighted and blind individuals and independently from the sensory modality conveying the stimuli clearly supports the hypothesis of a supramodal, distributed functional representation of actions, mainly within the action-observation network.
format	article
author	Emiliano Ricciardi Giacomo Handjaras Daniela Bonino Tomaso Vecchi Luciano Fadiga Pietro Pietrini
author_facet	Emiliano Ricciardi Giacomo Handjaras Daniela Bonino Tomaso Vecchi Luciano Fadiga Pietro Pietrini
author_sort	Emiliano Ricciardi
title	Beyond motor scheme: a supramodal distributed representation in the action-observation network.
title_short	Beyond motor scheme: a supramodal distributed representation in the action-observation network.
title_full	Beyond motor scheme: a supramodal distributed representation in the action-observation network.
title_fullStr	Beyond motor scheme: a supramodal distributed representation in the action-observation network.
title_full_unstemmed	Beyond motor scheme: a supramodal distributed representation in the action-observation network.
title_sort	beyond motor scheme: a supramodal distributed representation in the action-observation network.
publisher	Public Library of Science (PLoS)
publishDate	2013
url	https://doaj.org/article/a57e3b6776ab47c19df4890440cae7f6
work_keys_str_mv	AT emilianoricciardi beyondmotorschemeasupramodaldistributedrepresentationintheactionobservationnetwork AT giacomohandjaras beyondmotorschemeasupramodaldistributedrepresentationintheactionobservationnetwork AT danielabonino beyondmotorschemeasupramodaldistributedrepresentationintheactionobservationnetwork AT tomasovecchi beyondmotorschemeasupramodaldistributedrepresentationintheactionobservationnetwork AT lucianofadiga beyondmotorschemeasupramodaldistributedrepresentationintheactionobservationnetwork AT pietropietrini beyondmotorschemeasupramodaldistributedrepresentationintheactionobservationnetwork
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Beyond motor scheme: a supramodal distributed representation in the action-observation network.

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