کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6029775 | 1580930 | 2013 | 10 صفحه PDF | دانلود رایگان |
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.
⺠Fronto-temporal systems involved in auditory non-spatial top-down attention ⺠Dorsal attention network involved in visuospatial top-down attention ⺠Only middle and inferior frontal gyri significantly activated for both modalities ⺠There are modality specific neural mechanisms modulating top-down attention
Journal: NeuroImage - Volume 74, 1 July 2013, Pages 77-86