A somatotopic map of vibrissa motion direction within a barrel column

被引:105
作者
Andermann, ML
Moore, CI [1 ]
机构
[1] MIT, McGovern Inst Brain Res, Cambridge, MA 02139 USA
[2] MIT, Dept Brain & Cognit Sci, Cambridge, MA 02139 USA
[3] Harvard Univ, Program Biophys, Boston, MA 02115 USA
基金
美国国家科学基金会; 美国国家卫生研究院;
关键词
D O I
10.1038/nn1671
中图分类号
Q189 [神经科学];
学科分类号
071006 ;
摘要
Most mammals possess high-resolution visual perception, with primary visual cortices containing fine-scale, inter-related feature representations (for example, orientation and ocular dominance). Rats lack precise vision, but their vibrissa sensory system provides a precise tactile modality, including vibrissa-related 'barrel' columns in primary somatosensory cortex. Here, we examined the subcolumnar organization of direction preference and somatotopy using a new omni-directional, multi-vibrissa stimulator. We discovered a direction map that was systematically linked to somatotopy, such that neurons were tuned for motion toward their preferred surround vibrissa. This sub-barrel column direction map demonstrated an emergent refinement from layer IV to layer II/III. These data suggest that joint processing of multiple sensory features is a common property of high-resolution sensory systems.
引用
收藏
页码:543 / 551
页数:9
相关论文
共 50 条
[1]   Synaptic plasticity: taming the beast [J].
Abbott, L. F. ;
Nelson, Sacha B. .
NATURE NEUROSCIENCE, 2000, 3 (11) :1178-1183
[2]   Figuring space by time [J].
Ahissar, E ;
Arieli, A .
NEURON, 2001, 32 (02) :185-201
[3]   Long-term depression induced by sensory deprivation during cortical map plasticity in vivo [J].
Allen, CB ;
Celikel, T ;
Feldman, DE .
NATURE NEUROSCIENCE, 2003, 6 (03) :291-299
[4]   Neural correlates of vibrissa resonance: Band-pass and somatotopic representation of high-frequency stimuli [J].
Andermann, ML ;
Ritt, J ;
Neimark, MA ;
Moore, CI .
NEURON, 2004, 42 (03) :451-463
[5]   FLOW OF EXCITATION WITHIN RAT BARREL CORTEX ON STRIKING A SINGLE VIBRISSA [J].
ARMSTRONGJAMES, M ;
FOX, K ;
DASGUPTA, A .
JOURNAL OF NEUROPHYSIOLOGY, 1992, 68 (04) :1345-1358
[6]   SPATIOTEMPORAL CONVERGENCE AND DIVERGENCE IN THE RAT S1 BARREL CORTEX [J].
ARMSTRONGJAMES, M ;
FOX, K .
JOURNAL OF COMPARATIVE NEUROLOGY, 1987, 263 (02) :265-281
[7]  
Bender KJ, 2003, J NEUROSCI, V23, P8759
[8]  
BENISON AM, 2006, J NEUROPHYSIOL 0104
[9]   ORIENTATION SELECTIVITY, PREFERENCE, AND CONTINUITY IN MONKEY STRIATE CORTEX [J].
BLASDEL, GG .
JOURNAL OF NEUROSCIENCE, 1992, 12 (08) :3139-3161
[10]  
Bosking WH, 1997, J NEUROSCI, V17, P2112