Separable networks for top-down attention to auditory non-spatial and visuospatial modalities.

Separable networks for top-down attention to auditory non-spatial and visuospatial modalities.
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DOI:
10.1016/j.neuroimage.2013.02.023
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发表时间:
2013-07-01
期刊:
影响因子:
5.7
通讯作者:
Leech, Robert
Leech, Robert
中科院分区:
医学1区
文献类型:
--
作者:
Braga, Rodrigo M.;Wilson, Liam R.;Sharp, David J.;Wise, Richard J. S.;Leech, Robert

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A central question for cognitive neuroscience is whether there is a single neural system controlling the allocation of attention. A dorsal frontoparietal network of brain regions is often proposed as a mediator of top-down attention to all sensory inputs. We used functional magnetic resonance imaging in humans to show that the cortical networks supporting top-down attention are in fact modality-specific, with distinct superior fronto-parietal and fronto-temporal networks for visuospatial and non-spatial auditory attention respectively. In contrast, parts of the right middle and inferior frontal gyri showed a common response to attentional control regardless of modality, providing evidence that the amodal component of attention is restricted to the anterior cortex. ► Fronto-temporal systems involved in auditory non-spatial top-down attention ► Dorsal attention network involved in visuospatial top-down attention ► Only middle and inferior frontal gyri significantly activated for both modalities ► There are modality specific neural mechanisms modulating top-down attention
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