Neural sources involved in auditory target detection and novelty processing: an event-related fMRI study.
Psychophysiology
; 38(1): 133-42, 2001 Jan.
Article
em En
| MEDLINE
| ID: mdl-11321614
ABSTRACT
We used event-related functional magnetic resonance imaging (erfMRI) techniques to examine the cerebral sites involved with target detection and novelty processing of auditory stimuli. Consistent with the results from a recent erfMRI study in the visual modality, target processing was associated with activation bilaterally in the anterior superior temporal gyrus, inferior and middle frontal gyrus, inferior and superior parietal lobules, anterior and posterior cingulate, thalamus, caudate, and the amygdala/hippocampal complex. Analyses of the novel stimuli revealed activation bilaterally in the inferior frontal gyrus, insula, inferior parietal lobule, and in the inferior, middle, and superior temporal gyri. These data suggest that the scalp recorded event-related potentials (e.g., N2 and P3) elicited during similar tasks reflect an ensemble of neural generators located in spatially remote cortical areas.
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Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Percepção Auditiva
/
Localização de Som
Tipo de estudo:
Diagnostic_studies
Limite:
Adult
/
Female
/
Humans
/
Male
Idioma:
En
Revista:
Psychophysiology
Ano de publicação:
2001
Tipo de documento:
Article
País de afiliação:
Canadá