摘要翻译：
我们分析了人类观察者对一系列单分子气味的心理物理反应。每种气味都由一组146个感知描述符来表征，这些描述符是从气味特征轮廓数据库中获得的。因此，每一种气味都由高度多维感觉空间中的一个点表示。在这项工作中，我们研究了气味在这个知觉空间中的排列。我们认为，气味密集地采样嵌入多维感觉空间的二维曲面。这个表面可以解释超过一半的心理物理数据的方差。我们还表明，只有12%的实验方差不能用小维数(<10)的曲面来解释。我们认为，这些曲面流形代表了人类嗅觉系统采样的相关空间，从而为嗅觉感觉空间提供了替代。对于二维近似的情况，我们将曲面上的两个参数与气味分子的物理化学参数联系起来。我们发现其中一个维与分子连通性矩阵的特征值有关，而另一个维与分子极性的度量有关。我们讨论这些发现的行为意义。
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英文标题：
《The structure of human olfactory space》
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作者：
Alexei A. Koulakov, Armen G. Enikolopov, and Dmitry Rinberg
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最新提交年份：
2009
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分类信息：

一级分类：Quantitative Biology        数量生物学
二级分类：Neurons and Cognition        神经元与认知
分类描述：Synapse, cortex, neuronal dynamics, neural network, sensorimotor control, behavior, attention
突触，皮层，神经元动力学，神经网络，感觉运动控制，行为，注意
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一级分类：Quantitative Biology        数量生物学
二级分类：Other Quantitative Biology        其他定量生物学
分类描述：Work in quantitative biology that does not fit into the other q-bio classifications
不适合其他q-bio分类的定量生物学工作
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英文摘要：
  We analyze the psychophysical responses of human observers to an ensemble of monomolecular odorants. Each odorant is characterized by a set of 146 perceptual descriptors obtained from a database of odor character profiles. Each odorant is therefore represented by a point in highly multidimensional sensory space. In this work we study the arrangement of odorants in this perceptual space. We argue that odorants densely sample a two-dimensional curved surface embedded in the multidimensional sensory space. This surface can account for more than half of the variance of the psychophysical data. We also show that only 12 percent of experimental variance cannot be explained by curved surfaces of substantially small dimensionality (<10). We suggest that these curved manifolds represent the relevant spaces sampled by the human olfactory system, thereby providing surrogates for olfactory sensory space. For the case of 2D approximation, we relate the two parameters on the curved surface to the physico-chemical parameters of odorant molecules. We show that one of the dimensions is related to eigenvalues of the molecule connectivity matrix, while the other is correlated with measures of the molecule polarity. We discuss the behavioral significance of these findings.
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PDF链接：
https://arxiv.org/pdf/0907.3964