Interhemispheric interaction expands attentional capacity in an auditory selective attention task.
Exp Brain Res
; 194(2): 317-22, 2009 Apr.
Article
em En
| MEDLINE
| ID: mdl-19252903
ABSTRACT
Previous work from our laboratory indicates that interhemispheric interaction (IHI) functionally increases the attentional capacity available to support performance on visual tasks (Banich in The asymmetrical brain, pp 261-302, 2003). Because manipulations of both computational complexity and selection demand alter the benefits of IHI to task performance, we argue that IHI may be a general strategy for meeting increases in attentional demand. Other researchers, however, have suggested that the apparent benefits of IHI to attentional capacity are an epiphenomenon of the organization of the visual system (Fecteau and Enns in Neuropsychologia 431412-1428, 2005; Marsolek et al. in Neuropsychologia 401983-1999, 2002). In the current experiment, we investigate whether IHI increases attentional capacity outside the visual system by manipulating the selection demands of an auditory temporal pattern-matching task. We find that IHI expands attentional capacity in the auditory system. This suggests that the benefits of requiring IHI derive from a functional increase in attentional capacity rather than the organization of a specific sensory modality.
Texto completo:
1
Bases de dados:
MEDLINE
Assunto principal:
Atenção
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Percepção Auditiva
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Reconhecimento Fisiológico de Modelo
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Modelos Neurológicos
Limite:
Adolescent
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Adult
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Female
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Humans
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Male
Idioma:
En
Revista:
Exp Brain Res
Ano de publicação:
2009
Tipo de documento:
Article
País de afiliação:
Estados Unidos