ILANIT 2023

Homeostatic control of perception in brain-world loops

Ehud Ahissar
Brain Sciences, Weizmann Institute of Science, Israel

Perception is traditionally considered a sensory function – we perceive what is out there via our senses. Closed-loop perception suggests that perception is not a sensory function, but rather a motor-sensory function. Furthermore, closed-loop perception suggests that perception is a controlled function. Namely, the brain controls what it perceives as its environment. This is different than controlling the environment per-se. The control of perception, in this interpretation, is a homeostatic operation, aiming at stabilizing the motor-sensory relationships between the organism and its environment. In this context, what we perceive as external “objects” and “events” are the reflections of neuronal constructs helping the brain maintaining this homeostasis.