 Some philosophers maintain that, in addition to its manifestation in first-personal thinking, self-consciousness is also present in various forms of sensory and non-sensory experience (Bermúdez 1998; Hurley 1998: ch. 4; Zahavi 2005; Peacocke 2014; Musholt 2015). After all, self-consciousness is presumably a form of consciousness (see entry on  consciousness).  On the view that experience, like thought, has representational content, this can be understood as the view that experiences, like thoughts, can have content that is first-personal. On the further view that the content of experience is non-conceptual (see the entry on  non-conceptual  mental content), the claim is that there is non-conceptual first-person content (for a conceptualist response, see Noë 2002). Bermúdez also argues that there is a non-conceptual form of self-conscious thinking that arises from non-conceptual self-conscious experience, which he calls “protobelief” (Bermúdez 1998: ch. 5; cf. Bermúdez 2003).