Petro Lucy S, Vizioli Luca, Muckli Lars
Centre for Cognitive Neuroimaging, Institute of Neuroscience and Psychology, University of Glasgow Glasgow, UK.
Front Psychol. 2014 Nov 6;5:1223. doi: 10.3389/fpsyg.2014.01223. eCollection 2014.
Closing the structure-function divide is more challenging in the brain than in any other organ (Lichtman and Denk, 2011). For example, in early visual cortex, feedback projections to V1 can be quantified (e.g., Budd, 1998) but the understanding of feedback function is comparatively rudimentary (Muckli and Petro, 2013). Focusing on the function of feedback, we discuss how textbook descriptions mask the complexity of V1 responses, and how feedback and local activity reflects not only sensory processing but internal brain states.
在大脑中弥合结构与功能之间的差距比在其他任何器官中都更具挑战性(利希特曼和登克,2011年)。例如,在早期视觉皮层中,向V1的反馈投射可以被量化(例如,巴德,1998年),但对反馈功能的理解相对较为基础(穆克利和彼得罗,2013年)。聚焦于反馈功能,我们将讨论教科书描述如何掩盖了V1反应的复杂性,以及反馈和局部活动如何不仅反映感觉处理,还反映大脑内部状态。