Zénon Alexandre, Krauzlis Rich
Institut de neurosciences, Université Catholique de Louvain, 1200 Bruxelles, Belgique - Systems neurobiology laboratory, Salk institute for biological studies, 10010 North Torrey Pines road, La Jolla, California 92037, États-Unis.
Systems neurobiology laboratory, Salk institute for biological studies, 10010 North Torrey Pines road, La Jolla, California 92037, États-Unis - Laboratory of sensorimotor research, National eye institute, Bethesda, Maryland 20892, États-Unis.
Med Sci (Paris). 2014 Jun-Jul;30(6-7):637-43. doi: 10.1051/medsci/20143006013. Epub 2014 Jul 11.
Our visual system has limited resources, which need to be allocated in priority to the most relevant elements of the environment. The brain centers of this allocation mechanism, called visual attention, have been studied primarily in cortex. In this review, we describe the role of the superior colliculus, a structure of the brainstem, in attention control. This nucleus exerts its influence on visual selection independently of cortical attentional mechanisms. The exact nature of the subcortical circuits involved remains unknown but it can be hypothesized that the loop connecting the superior colliculus to the basal ganglia are a central actor of this subcortical selection process.
我们的视觉系统资源有限，需要优先分配给环境中最相关的元素。这种分配机制的脑中枢，即视觉注意力，主要在皮层中进行了研究。在本综述中，我们描述了脑干结构上丘在注意力控制中的作用。该神经核独立于皮层注意力机制对视觉选择施加影响。所涉及的皮层下回路的确切性质仍然未知，但可以推测，连接上丘与基底神经节的回路是这种皮层下选择过程的核心参与者。
