视觉与触觉中类似的中间形状编码。
Analogous intermediate shape coding in vision and touch.
作者信息
Yau Jeffrey M, Pasupathy Anitha, Fitzgerald Paul J, Hsiao Steven S, Connor Charles E
机构信息
Zanvyl Krieger Mind/Brain Institute and Solomon H. Snyder Department of Neuroscience, Johns Hopkins University, 3400 North Charles Street, Baltimore, MD 21218, USA.
出版信息
Proc Natl Acad Sci U S A. 2009 Sep 22;106(38):16457-62. doi: 10.1073/pnas.0904186106. Epub 2009 Sep 4.
Abstract
We recognize, understand, and interact with objects through both vision and touch. Conceivably, these two sensory systems encode object shape in similar ways, which could facilitate cross-modal communication. To test this idea, we studied single neurons in macaque monkey intermediate visual (area V4) and somatosensory (area SII) cortex, using matched shape stimuli. We found similar patterns of shape sensitivity characterized by tuning for curvature direction. These parallel tuning patterns imply analogous shape coding mechanisms in intermediate visual and somatosensory cortex.
摘要
我们通过视觉和触觉来识别、理解物体并与之互动。可以想象，这两种感觉系统以相似的方式对物体形状进行编码，这可能有助于跨模态交流。为了验证这一想法，我们使用匹配的形状刺激，研究了猕猴中间视觉（V4区）和躯体感觉（SII区）皮层中的单个神经元。我们发现了以曲率方向调谐为特征的相似形状敏感性模式。这些平行的调谐模式意味着中间视觉和躯体感觉皮层中存在类似的形状编码机制。
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