Whether consciousness exists or not, it can be defined as the ability to experience a physical event. It implies an observer that experiences the event which we call the self, so a theory that denies consciousness also denies that this self exists.
QR6.1.1 Do We Exist?
QR6.1.2 The Hard Problem
QR6.1.3 Why Are We Conscious?
QR6.1.4 Physicalism
QR6.1.5 Dualism
QR6.1.6 Information Theories
QR6.1.7 Cognitive Theories
QR6.1.8 Neutral Monism