Dorsal–ventral integration in object recognition

@article{Farivar2009DorsalventralII,
  title={Dorsal–ventral integration in object recognition},
  author={Reza Farivar},
  journal={Brain Research Reviews},
  year={2009},
  volume={61},
  pages={144-153}
}
  • R. Farivar
  • Published 1 October 2009
  • Biology, Psychology
  • Brain Research Reviews
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TLDR
It is suggested that dorsal cortex is a crucial source of input to the ventral pathway and may support the ability to categorize objects on the basis of global shape, and shed light on the broader network of brain regions that support object categorization.
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A novel tradeoff is reported where MT neurons transmit disparity signals quickly and robustly, whereas V4 neurons markedly transform the nature of the signals with extra time to solve the stereo correspondence problem, suggesting signaling speed and robustness are traded for computational complexity.
Feature integration and object representations along the dorsal stream visual hierarchy
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This work reviews the hierarchical processing of motion along the dorsal stream and the building up of object representations along the ventral stream, and proposes a framework describing how and at what stage different features are integrated into dorsal visual stream object representations.
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Three-dimensional structure-from-motion cues, thought to be computed exclusively by dorsal stream mechanisms, are sufficient to drive complex object recognition and that ventral stream areas are necessary for both identification and learning of unfamiliar faces from SFM cues are suggested.
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Differences in the two visual pathways provide the first neurophysiological evidence that shape encoding in the dorsal pathway is distinct from and not a mere duplication of that formed in the ventral pathway.
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