Knowledge Tree
Relations (1)
related 2.58 — strongly supporting 5 facts
Mental states and physical objects are related through their contrasting roles in consciousness and epistemology, such as the distinction between privileged access to mental states versus the public accessibility of physical objects [1], and the difference between introspection of internal states and perception of external objects [2]. Furthermore, they are compared in theories of consciousness [3], defined by their differing intentional properties [4], and categorized as potential forms of evidence [5].
Facts (5)
Sources
Dualism (Stanford Encyclopedia of Philosophy/Winter 2016 Edition) plato.stanford.edu 2 facts
claimPhysical objects are equally accessible to anyone in principle, whereas the possessor of mental states has privileged access to them that no one else can share.
claimIntentionality is the property of mental states being 'about' other things, including non-existent things like Zeus or the square root of minus one, which physical things cannot literally be.
Epistemology - Wikipedia en.wikipedia.org 2 facts
claimIntrospection is a process focused on internal mental states, such as feeling tired, as opposed to perception, which is focused on external physical objects, such as seeing a bus at a bus station.
claimEvidence is primarily conceptualized as mental states, such as sensory impressions or known propositions, but can also include physical objects like bloodstains or financial records.
Consciousness (Stanford Encyclopedia of Philosophy/Fall 2025 ... plato.stanford.edu 1 fact
claimHigher-Order Perception (HOP) and Higher-Order Thought (HOT) theories of consciousness face the 'generality problem,' which questions why having a thought or perception of a mental state (like a desire or memory) makes that state conscious, when having a thought or perception of a physical object (like a rock or potato) does not make that object conscious.