Superior Colliculus and Visual Spatial Attention
نویسندگان
چکیده
منابع مشابه
Superior colliculus and visual spatial attention.
The superior colliculus (SC) has long been known to be part of the network of brain areas involved in spatial attention, but recent findings have dramatically refined our understanding of its functional role. The SC both implements the motor consequences of attention and plays a crucial role in the process of target selection that precedes movement. Moreover, even in the absence of overt orient...
متن کاملThe primate superior colliculus and the shift of visual attention.
seem to be affected very dramatically and can subserve foveal vision as well. Have you any ideas on what this cortical input is doing as well as on the anatomy of the lower layers of the colliculus about which you haven't talked but which may clarify some things? LUND: That really is puzzling. I think it highly unlikely that there is a major direct optic projection to the rostral colliculus. It...
متن کاملTopography of covert visual attention in human superior colliculus.
Experiments were performed to examine the topography of covert visual attention signals in human superior colliculus (SC), both across its surface and in its depth. We measured the retinotopic organization of SC to direct visual stimulation using a 90° wedge of moving dots that slowly rotated around fixation. Subjects (n = 5) were cued to perform a difficult speed-discrimination task in the rot...
متن کاملTarget selection, attention, and the superior colliculus
Consistent with the target article, recent evidence indicates that the superior colliculus (SC) is somehow involved in target selection. However, it is not yet known whether this function is inherent to the SC or inherited from its inputs, how the selection process occurs for different movements, or how target selection by the SC is related to covert selection (i.e., attention). It has been rec...
متن کاملEffects of sustained spatial attention in the human lateral geniculate nucleus and superior colliculus.
The role of subcortical visual structures such as the lateral geniculate nucleus (LGN) and the superior colliculus (SC) in the control of visual spatial attention remains poorly understood. Here, we used high-resolution functional magnetic resonance imaging to measure responses in the human LGN and SC during sustained spatial attention. Subjects covertly and continuously tracked one of two segm...
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ژورنال
عنوان ژورنال: Annual Review of Neuroscience
سال: 2013
ISSN: 0147-006X,1545-4126
DOI: 10.1146/annurev-neuro-062012-170249