A frontoparietal network for spatial attention reorienting in the auditory domain: A human fMRI/MEG study of functional and temporal dynamics

被引：46

作者：

Brunetti, M. ^{[1
,2
]}

Della Penna, S. ^{[1
,2
]}

Ferretti, A. ^{[1
,2
]}

Del Gratta, C. ^{[1
,2
]}

Cianflone, F. ^{[1
,2
]}

Belardinelli, P. ^{[1
,2
,3
]}

Caulo, M. ^{[1
,2
]}

Pizzella, V. ^{[1
,2
]}

Belardinelli, M. Olivetti ^{[3
,4
]}

Romani, G. L. ^{[1
,2
]}

机构：

[1] Univ G Annunzio Chieti, Inst Adv Biomed Technol, I-66013 Chieti, CH, Italy

[2] Univ G Annunzio Chieti, Dept Clin Sci & Biomed Imaging, I-66013 Chieti, CH, Italy

[3] Univ Roma La Sapienza, ECONA Interuniv Ctr Res Cognit Proc Nat & Artific, I-00185 Rome, Italy

[4] Univ Roma La Sapienza, Dept Psychol, I-00185 Rome, Italy

来源：

CEREBRAL CORTEX | 2008年 / 18卷 / 05期

关键词：

auditory processing; fMRI; MEG; reorienting response; vertical meridian;

D O I：

10.1093/cercor/bhm145

中图分类号：

Q189 [神经科学];

学科分类号：

071006 ;

摘要：

Several studies have identified a supramodal network critical to the reorienting of attention toward stimuli at novel locations and which involves the right temporoparietal junction and the inferior frontal areas. The present functional magnetic resonance imaging (fMRI)\magnetoencephalography (MEG) study investigates: 1) the cerebral circuit underlying attentional reorienting to spatially varying sound locations; 2) the circuit related to the regular change of sound location in the same hemifield, the change of sound location across hemifields, or sounds presented randomly at different locations on the azimuth plane; 3) functional temporal dynamics of the observed cortical areas exploiting the complementary characteristics of the fMRI and MEG paradigms. fMRI results suggest 3 distinct roles: the supratemporal plane appears modulated by variations of sound location; the inferior parietal lobule is modulated by the cross-meridian effect; and the inferior frontal cortex is engaged by the inhibition of a motor response. MEG data help to elucidate the temporal dynamics of this network by providing high-resolution time series with which to measure latency of neural activation manipulated by the reorienting of attention.

引用

页码：1139 / 1147

页数：9

共 32 条

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