Quantity processing studies typically assume functional homology between regions within macaque and human intraparietal sulcus (IPS), where apparently similar locations respond to broadly similar tasks. However, macaque single cell neurophysiology is difficult to compare to human functional magnetic resonance imaging (fMRI); particularly in multivoxel pattern analysis and adaptation paradigms, or where different tasks are used. fMRI approaches incorporating neural tuning models allow closer comparison, revealing human numerosity-selective responses only outside the IPS. Extensive functional similarities support this novel homology of physical quantity processing. Human IPS instead houses a network responding to comparisons of physical quantities, symbolic numbers, and other stimulus features. This network likely reflects interactions between physical quantity processing, spatial processing, and (in humans) linguistic processing.

中文翻译：

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比较人类和猕猴的顶叶数量处理机制

数量处理研究通常假设猕猴和人类顶内沟 (IPS) 内区域之间的功能同源性，其中明显相似的位置对大致相似的任务做出反应。然而，猕猴单细胞神经生理学很难与人类功能磁共振成像 (fMRI) 相比；特别是在多体素模式分析和适应范式中，或者在使用不同任务的情况下。结合神经调谐模型的 fMRI 方法允许进行更密切的比较，仅在 IPS 之外揭示人类数量选择性反应。广泛的功能相似性支持这种新的物理量处理同源性。相反，人类 IPS 包含一个网络，以响应物理量、符号数字和其他刺激特征的比较。