Event-related brain potentials (ERPs) were used to investigate the visual processing of actions belonging to the typical human repertoire. Two hundred and sixty coloured pictures representing persons differing in number, age and gender, engaged in simple actions, were presented to 23 right-handed students. Perception of meaningful actions (e.g., young woman trying shoes in shop) was contrasted with perception of actions lacking an understandable goal (e.g., businesswoman balancing on one foot in desert). The results indicated early recognition of comprehensible behaviour in the form of an enhanced posterior “recognition potential” (RP) (N250), which was followed by a larger negativity (N400) in response to incongruent actions. The results suggest that incoming visual information regarding human gestures is processed similarly to linguistic inputs from a conceptual point of view, thus eliciting a posterior RP when the action code is visually recognized and comprehended, and a later N400 when the action is not recognized or is difficult to integrate with previous knowledge.

Proverbio, A., & Riva, F. (2009). RP and N400 ERP components reflect semantic violations in visual processing of human actions. NEUROSCIENCE LETTERS, 459(3), 142-146 [10.1016/j.neulet.2009.05.012].

RP and N400 ERP components reflect semantic violations in visual processing of human actions

PROVERBIO, ALICE MADO;RIVA, FEDERICA
2009

Abstract

Event-related brain potentials (ERPs) were used to investigate the visual processing of actions belonging to the typical human repertoire. Two hundred and sixty coloured pictures representing persons differing in number, age and gender, engaged in simple actions, were presented to 23 right-handed students. Perception of meaningful actions (e.g., young woman trying shoes in shop) was contrasted with perception of actions lacking an understandable goal (e.g., businesswoman balancing on one foot in desert). The results indicated early recognition of comprehensible behaviour in the form of an enhanced posterior “recognition potential” (RP) (N250), which was followed by a larger negativity (N400) in response to incongruent actions. The results suggest that incoming visual information regarding human gestures is processed similarly to linguistic inputs from a conceptual point of view, thus eliciting a posterior RP when the action code is visually recognized and comprehended, and a later N400 when the action is not recognized or is difficult to integrate with previous knowledge.
Articolo in rivista - Articolo scientifico
apraxia; mirror neurons; action; ERP; language
English
Proverbio, A., & Riva, F. (2009). RP and N400 ERP components reflect semantic violations in visual processing of human actions. NEUROSCIENCE LETTERS, 459(3), 142-146 [10.1016/j.neulet.2009.05.012].
Proverbio, A; Riva, F
File in questo prodotto:
File Dimensione Formato  
RP_and_N400_ERP_components_reflect_semantic.pdf

accesso aperto

Tipologia di allegato: Author’s Accepted Manuscript, AAM (Post-print)
Dimensione 166.83 kB
Formato Adobe PDF
166.83 kB Adobe PDF Visualizza/Apri

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/10281/5158
Citazioni
  • Scopus 96
  • ???jsp.display-item.citation.isi??? 90
Social impact