The dorsal visual stream revisited: Stable circuits or dynamic pathways?

摘要: In both macaque and human brain, information regarding visual motion flows from the extrastriate area V6 along two different paths: a dorsolateral one towards areas MT/V5, MST, V3A, dorsomedial visuomotor of superior parietal lobule (V6A, MIP, VIP). The stream is involved in many aspects analysis, including recognition object self motion. uses to continuously monitor spatial location objects while we are looking and/or moving around, allow skilled reaching for grasping structured, dynamically changing environments. Grasping activity present dorsal stream, AIP V6A. Area more than V6A recognition, encoding vision action. We suggest that fast control prehension plays critical role biomechanically selecting appropriate postures during reach grasp behaviors. everyday life, numerous functional networks, often involving same cortical areas, action with each network activated or inhibited according context. streams represent only examples these networks. Many others have been described literature, but it worthwhile noting area, even neurons within an not specific just property, being part networks encode multiple aspects. Our proposal conceive as fixed series interconnected which belongs univocally strictly function, neuronal neurons, number processes whose activation changes