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

Michela Balconi; Roberta Arangio; Chiara Guarnerio

doi:10.1176/appi.neuropsych.12090227

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

Michela Balconi, Roberta Arangio, Chiara Guarnerio

Dept. of Psychology

Research output: Contribution to journal › Article › peer-review

21 Citations (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.

Original language	English
Pages (from-to)	237-243
Number of pages	7
Journal	THE JOURNAL OF NEUROPSYCHIATRY AND CLINICAL NEUROSCIENCES
Volume	25
DOIs	https://doi.org/10.1176/appi.neuropsych.12090227
Publication status	Published - 2013

Keywords

Consciousness disorders
Semantics

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10.1176/appi.neuropsych.12090227

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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.",

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AU - Balconi, Michela

AU - Arangio, Roberta

AU - Guarnerio, Chiara

PY - 2013

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N2 - 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.

AB - 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.

KW - Consciousness disorders

KW - Semantics

KW - Consciousness disorders

KW - Semantics

UR - http://hdl.handle.net/10807/51162

U2 - 10.1176/appi.neuropsych.12090227

DO - 10.1176/appi.neuropsych.12090227

M3 - Article

SN - 0895-0172

VL - 25

SP - 237

EP - 243

JO - THE JOURNAL OF NEUROPSYCHIATRY AND CLINICAL NEUROSCIENCES

JF - THE JOURNAL OF NEUROPSYCHIATRY AND CLINICAL NEUROSCIENCES

ER -

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

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Keywords

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