Core Affect

A neurophysiological state that is consciously accessible as a simple, nonreflective feeling that is an integral blend of hedonic (pleasure–displeasure) and arousal (sleepy–activated) values.

Reference:

Russell, J. A. (2003). Core affect and the psychological construction of emotion. Psychological Review, 110(1), 145. https://www.doi.org/10.1037/0033-295X.110.1.145