Population Receptive Field Characteristics in the between- and Within-Digit Dimensions of the Undominant Hand in the Primary Somatosensory Cortex.
Population Receptive Field Characteristics in the between- and Within-Digit Dimensions of the Undominant Hand in the Primary Somatosensory Cortex.
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DOI：
10.1093/cercor/bhab097
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发表时间：
2021-08-26
期刊：
影响因子：
--
通讯作者：
Yan T
中科院分区：
文献类型：
--
作者：
Wang L;Zhang Z;Okada T;Li C;Chen D;Funahashi S;Wu J;Yan T
体感是初级体感皮层（S1）感觉纤维组织的重要指导原则，反映触觉信息处理并与疾病相关的重组相关。然而，在正常参与者体内测量 S1 的神经元编码方案是很困难的。在这里，我们使用贝叶斯群体感受野（pRF）模型研究了非优势手的体位图。该模型是在具有指间和指内尺寸的手部空间中建立的。在数字之间的维度中，发现了有序的表示，其在参与者之间的变异性较低。对于具有高空间敏锐度的数字，pRF 形状趋于椭圆形，其长轴沿着数字内维度。此外，pRF宽度在2个维度上在各个数字上呈现出不同的变化趋势。这些结果为S1的神经机制提供了新的见解，从而可以深入研究体感信息处理和疾病相关的重组。
Somatotopy is an important guiding principle for sensory fiber organization in the primary somatosensory cortex (S1), which reflects tactile information processing and is associated with disease-related reorganization. However, it is difficult to measure the neuronal encoding scheme in S1 in vivo in normal participants. Here, we investigated the somatotopic map of the undominant hand using a Bayesian population receptive field (pRF) model. The model was established in hand space with between- and within-digit dimensions. In the between-digit dimension, orderly representation was found, which had low variability across participants. The pRF shape tended to be elliptical for digits with high spatial acuity, for which the long axis was along the within-digit dimension. In addition, the pRF width showed different change trends in the 2 dimensions across digits. These results provide new insights into the neural mechanisms in S1, allowing for in-depth investigation of somatosensory information processing and disease-related reorganization.
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影响因子：
3.7
作者：
Di Noto, Paula M.;Newman, Leorra;Einstein, Gillian
通讯作者：
Einstein, Gillian
DOI：
10.1098/rstb.2012.0417
发表时间：
2013-11-19
期刊：
Philosophical transactions of the Royal Society of London. Series B, Biological sciences
影响因子：
--
作者：
Hashimoto T;Ueno K;Ogawa A;Asamizuya T;Suzuki C;Cheng K;Tanaka M;Taoka M;Iwamura Y;Suwa G;Iriki A
通讯作者：
Iriki A
影响因子：
14.5
作者：
Maeda, Yumi;Kettner, Norman;Napadow, Vitaly
通讯作者：
Napadow, Vitaly
影响因子：
4.6
作者：
Kuroki, Scinob;Nishida, Shin'ya
通讯作者：
Nishida, Shin'ya
影响因子：
5.7
作者：
Kuehn, Esther;Pleger, Burkhard
通讯作者：
Pleger, Burkhard