what is the thalamus part of
By Dr Ananya Mandal, MD. The thalamus is a vital structure lying deep within the brain that has several important functions. There are extensive nerve networks that send signals all around the structures of the brain including the cerebral cortex. The thalamus is involved in sensory and motor signal relay and the regulation of consciousness and sleep. Aside from sense of smell, all other sensory processes involve a thalamic nucleus receiving a sensory signal which is then directed to the relevant cortical area.