Humans can experience a wide variety of different thoughts and feelings in the course of everyday life. To successfully navigate the social world, people need to perceive, understand, and predict others' mental states. Previous research suggests that people use three dimensions to represent mental states: rationality, social impact, and valence. This 3d Mind Model allows people to efficiently "see" the state of another person's mind by considering whether that state is rational or emotional, more or less socially impactful, and positive or negative. In the current investigation, we validate this model using neural, behavioral, and linguistic evidence. First, we examine the robustness of the 3d Mind Model by conducting a mega-analysis of four fMRI studies in which participants considered others' mental states. We find evidence that rationality, social impact, and valence each contribute to explaining the neural representation of mental states. Second, we test whether the 3d Mind Model offers the optimal combination of dimensions for describing neural representations of mental state. Results reveal that the 3d Mind Model achieve the best performance among a large set of candidate dimensions. Indeed, it offers a highly explanatory account of mental state representation, explaining over 80% of reliable neural variance. Finally, we demonstrate that all three dimensions of the model likewise capture convergent behavioral and linguistic measures of mental state representation. Together, these findings provide strong support for the 3d Mind Model, indicating that is it is a robust and generalizable account of how people think about mental states.

中文翻译：

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人们在理性，社会影响和效价方面代表精神状态：验证3d思维模型。

在日常生活中，人类会经历各种各样的不同思想和感受。为了成功地驾驭社会世界，人们需要感知，理解和预测他人的心理状态。先前的研究表明，人们使用三个维度来代表心理状态：理性，社会影响和效价。此3d思维模型使人们可以通过考虑某个人的思想状态是理性的还是情感的，或多或少对社会有影响的，是积极的还是消极的，来有效地“看到”另一个人的思想状态。在当前的调查中，我们使用神经，行为和语言证据验证了该模型。首先，我们通过对四项功能磁共振成像研究进行大规模分析来检验3d思维模型的鲁棒性，在这些研究中，参与者考虑了其他人的精神状态。我们发现，理性，社会影响和效价均有助于解释心理状态的神经表征。其次，我们测试3d思维模型是否提供了用于描述心理状态的神经表示的最佳维度组合。结果显示，在大量候选维度中，3d思维模型实现了最佳性能。确实，它提供了对精神状态表示的高度解释性解释，解释了80％以上的可靠神经变异。最后，我们证明了模型的所有三个维度同样捕获了心理状态表征的融合行为和语言测量。这些发现加在一起为3d思维模型提供了有力的支持，表明这是人们对心理状态的看法的有力且可概括的描述。