 If first-person thought is not grounded in an awareness of the self as an object, then some other account is arguably required to account for the capacity to entertain self-conscious thought (O’Brien 1995a). One suggestion is that subjects possess a form of “pre-reflective self-awareness” as a necessary condition of consciousness (Sartre 1937, 1943: Introduction; Zahavi 2005, 2007; Legrand 2006; cf. Kriegel 2009. For criticism, see Schear 2009; also see the entry on  phenomenological approaches to self-consciousness).  On this view, all conscious experience involves an implicit awareness of oneself as its subject without explicitly representing the self as an object of awareness (cf. Musholt’s distinction between “self-representationalist” and “non-self-representationalist” accounts of non-conceptual self-consciousness (2015: chs. 3–4)). Indeed, it might be argued that the necessity of an active agent’s possessing some form of self-awareness follows from the connection between action and self-consciousness that many suppose to have been established by considerations of the essential indexical discussed in  §2.1  (cf. Bermúdez 1998).