'Where' and 'what' in the whisker sensorimotor system

被引:417
作者
Diamond, Mathew E. [1 ]
von Heimendahl, Moritz [1 ]
Knutsen, Per Magne [2 ]
Kleinfeld, David [3 ]
Ahissar, Ehud [2 ]
机构
[1] SISSA, Int Sch Adv Studies, I-34014 Trieste, Italy
[2] Weizmann Inst Sci, Dept Neurobiol, IL-76100 Rehovot, Israel
[3] Univ Calif San Diego, Dept Phys, La Jolla, CA 92093 USA
关键词
D O I
10.1038/nrn2411
中图分类号
Q189 [神经科学];
学科分类号
071006 ;
摘要
In the visual system of primates, different neuronal pathways are specialized for processing information about the spatial coordinates of objects and their identity - that is, 'where' and 'what'. By contrast, rats and other nocturnal animals build up a neuronal representation of 'where' and 'what' by seeking out and palpating objects with their whiskers. We present recent evidence about how the brain constructs a representation of the surrounding world through whisker-mediated sense of touch. While considerable knowledge exists about the representation of the physical properties of stimuli - like texture, shape and position - we know little about how the brain represents their meaning. Future research may elucidate this and show how the transformation of one representation to another is achieved.
引用
收藏
页码:601 / 612
页数:12
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