Sensation

A feeling or impression that has entered consciousness. The senses convey information, about the external environment and about the body’s internal state, to the central nervous system. Information is collected by millions of sense receptors found throughout body tissues and in special sense organs, such as the eye. Certain sensory information, mainly that from the special sense organs and skin receptors, enters the sensory cortex of the brain, where sensations are consciously perceived. Other types of sensory information, for example about body posture, are processed elsewhere and do not produce conscious sensation.