What do we call the process by which individuals organize and interpret their sensory impressions in order to give meaning to their environment?

Perception.

Explanation:

The receptors detect the stimuli and the changes that might occur in the internal and external environment. The nervous system plays an important role in the perception.

Perception may be defined as the process by which individual tries to understand the sensory information present in the environment. Sensory receptors plays an important role in the perception. The sensory neurons gets information to the receptor and transmit into the central nervous system.

Thus, the answer is perception.