Laycock R, Crewther D P, Crewther S G
School of Psychological Science, La Trobe University, Kingsbury Drive, Bundoora, Melbourne, Victoria 3086, Australia.
Neurosci Biobehav Rev. 2008 Oct;32(8):1409-15. doi: 10.1016/j.neubiorev.2008.04.008. Epub 2008 Apr 29.
We have recently proposed a model of visual processing in which object recognition through the ventral stream into inferotemporal cortex is facilitated by an initial rapid feedforward sweep through the dorsal stream activating parietal and frontal regions prior to subsequent feedback to primary visual cortex (V1). Modulation of inferotemporal cortex also requires feedback from frontal regions, and horizontal connections from the dorsal stream. Aspects of this model, however, have been called into question-in particular the timing advantage of magnocellular over parvocellular arrivals in V1 (the 'magnocellular advantage'), the link between attention and the magnocellular system, and also the role of MT in smooth pursuit and saccadic eye movements. These criticisms are each rebutted in detail here, and the basis for a model derived from the magnocellular advantage is reaffirmed.
我们最近提出了一种视觉处理模型，在该模型中，通过腹侧流进入颞下皮质的物体识别，是由最初通过背侧流的快速前馈扫描促进的，该扫描在随后反馈到初级视觉皮质（V1）之前激活顶叶和额叶区域。颞下皮质的调制还需要来自额叶区域的反馈以及来自背侧流的水平连接。然而，该模型的一些方面受到了质疑，特别是大细胞比小细胞到达V1的时间优势（“大细胞优势”）、注意力与大细胞系统之间的联系，以及MT在平稳跟踪和扫视眼动中的作用。此处对这些批评逐一进行了详细反驳，并再次确认了源自大细胞优势的模型基础。
