The thalamus is a part of the corpus callosum in the brain and its function is to relay pain and pressure impulses
There are multiple functions of thalamus. Thalamus acts as a translator for prethalamic inputs that are processed in the cerebral cortex. It also processes the sensory information to many parts of the cerebral cortex. Thalamus also plays a very important role in regulating the state of sleep as well as wakefulness. It has strong linkages with the cerebral cortex and involves in consciousness. It plays a very significant role in the awareness and activity and the permanent damage to thalamus may cause coma. Another significant role of thalamus is related with the motor system and it forwards the signals to the cerebral cortex.