Functional convergence of thalamic and intrinsic projections to cortical layers 4 and 6.
Functional convergence of thalamic and intrinsic projections to cortical layers 4 and 6.
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DOI：
10.1007/s11062-013-9385-2
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发表时间：
2013-11-01
期刊：
影响因子：
0.5
通讯作者：
Imaizumi, K.
中科院分区：
文献类型：
--
作者：
Lee, C. C.;Imaizumi, K.
Ascending sensory information is conveyed from the thalamus to layers 4 and 6 of sensory cortical areas. Interestingly, receptive field properties of cortical layer 6 neurons are different from those in layer 4. Do such differences reflect distinct inheritance patterns from the thalamus or are they derived instead from local cortical circuits? To distinguish between these possibilities, we utilized in vitro slice preparations containing the thalamocortical pathways in the auditory and somatosensory systems. Responses from neurons in layers 4 and 6 that resided in the same column were recorded using whole-cell patch clamp. Laser-scanning photostimulation via uncaging of glutamate in the thalamus and cortex was used to map the functional topography of thalamocortical and intracortical inputs to each layer. In addition, we assessed the functional divergence of thalamocortical inputs by optical imaging of flavoprotein autofluorescence. We found that the thalamocortical inputs to layers 4 and 6 originated from the same thalamic domain, but the intracortical projections to the same neurons differed dramatically. Our results suggest that the intracortical projections, rather than the thalamic inputs, to each layer contribute more to the differences in their receptive field properties.
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DOI：
10.1523/jneurosci.2093-08.2008
发表时间：
2008-10-29
期刊：
The Journal of neuroscience : the official journal of the Society for Neuroscience
影响因子：
--
作者：
Barbour DL;Callaway EM
通讯作者：
Callaway EM
影响因子：
3.3
作者：
Higashi, S;Crair, MC;Toyama, K
通讯作者：
Toyama, K
DOI：
10.1007/978-1-4419-0074-6_7
发表时间：
2011-01-01
期刊：
AUDITORY CORTEX
影响因子：
--
作者：
Lee, Charles C.;Winer, Jeffery A.
通讯作者：
Winer, Jeffery A.
影响因子：
2.5
作者：
DYKES, RW;LAMOUR, Y
通讯作者：
LAMOUR, Y
影响因子：
9.8
作者：
Bureau, Ingrid;von Saint Paul, Francisca;Svoboda, Karel
通讯作者：
Svoboda, Karel