* Innateness. To what extent is knowledge innate or acquired by experience? Is human behavior shaped primarily by nature or nurture? * Language of thought. Does the human brain operate with a language-like code or with a more general connectionist architecture? What is the relation between symbolic cognitive models using rules and concepts and sub-symbolic models using neural networks? * Mental imagery. Do human minds think with visual and other kinds of imagery, or only with language-like representations? * Folk psychology. Does a person's everyday understanding of other people consist of having a theory of mind, or of merely being able to simulate them? * Meaning. How do mental representations acquire meaning or mental content? To what extent does the meaning of a representation depend on its relation to other representations, its relation to the world, and its relation to a community of thinkers? * Mind-brain identity. Are mental states brain states? Or can they be multiply realized by other material states? What is the relation between psychology and neuroscience? Is materialism true? * Free will. Is human action free or merely caused by brain events? * Moral psychology. How do minds/brains make ethical judgments? * The meaning of life. How can minds construed naturalistically as brains find value and meaning? * Emotions. What are emotions, and what role do they play in thinking? * Mental illness. What are mental illnesses, and how are psychological and neural processes relevant to their explanation and treatment? * Appearance and reality. How do minds/brains form and evaluate representations of the external world? * Social science. How do explanations of the operations of minds interact with explanations of the operations of groups and societies?
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