 Limiting acquaintance accounts to self-knowledge of sensations—or, more strictly, to self-knowledge of mental states individuated by phenomenology—does not entirely fix their scope, as philosophers disagree as to which kinds of mental states are individuated by phenomenology. Recently, the idea that thoughts have a distinctive phenomenology has received renewed attention (see the entry on  consciousness and intentionality).  Pitt (2004) uses the fact that we seem able to know what we’re thinking in a direct, highly secure way—one that is best explained by an acquaintance model of introspection—to argue that thoughts have distinctive phenomenological properties with which we are acquainted. Some philosophers also argue that conscious attitudes, such as judgments, have distinctive phenomenologies.