Disorders of consciousness and N400 ERP measures in response to a semantic task

Michela Balconi, Roberta Arangio, Chiara Guarnerio

Risultato della ricerca: Contributo in rivistaArticolo in rivistapeer review

20 Citazioni (Scopus)

Abstract

Disorders of consciousness (DOC) have been studied in recent years. In the present research, electrophysiological measures (ERPs) were used to verify the preservation of semantic linguistic processes in vegetative states (VS) and minimal-consciousness state (MCS). Eighteen patients classified as VS or MCS, and 20 controls were submitted to a semantic associative task with congruous or incongruous word sequences (auditory stimuli). An increased N400 peak amplitude within the fronto-central cortical areas was shown in response to incongruous sequences for both patients and controls. Thus, semantic processing was partially preserved in both VS and MCS patients.
Lingua originaleEnglish
pagine (da-a)237-243
Numero di pagine7
RivistaTHE JOURNAL OF NEUROPSYCHIATRY AND CLINICAL NEUROSCIENCES
Volume25
DOI
Stato di pubblicazionePubblicato - 2013

Keywords

  • Consciousness disorders
  • Semantics

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