Even at the very early stage of the retina, an important division arises between two parallel visual streams, the dorsal stream and the ventral stream. The dorsal stream projects to the parietal cortex, and is responsible for movements in relation to objects, many of them of a routine or reflex nature. It is also seen as an answer to the ‘where is it?’ location question. The processing of the dorsal is unconscious, and is faster than the consciousness-related processing of the ventral stream.
Posts Tagged ‘dorsolateral prefrontal’
By Harlan M. Fichtenholtz & Kevin S. Labar, YaleUniversity and DukeUniversity. Published In:- The Neuroscience of Attention Ed. George R. Mangun, Oxford University Press (2012) Summary and review of the above chapter INTRODUCTION:- Attention and emotion are argued to be parallel processes interacting at many stages in the brain. Some brain regions are more involved with emotional response and others more with attentional control. Limbic regions act so as to bias sensory processing, Read more […]
Midbrain and forebrain systems for bottom-up control of spatial attention Eric Knudsen, Stanford University In:- The Neuroscience of Attention – Ed. George R. Mangun Oxford University Press (2012) Summary and review of the above chapter Spatial attention allows organisms to concentrate information processing on a limited spatial region. This concentration or control can be top-down or bottom-up. Top-down control is related to working memory and frontoparietal areas tuning sensory neurons Read more […]