In his cheeks and under tongue also. At age 60, we have very few left. For that is the time when man's intelligence itself, his greatest implement, is being formed. It is this sensibility which enables a child to come into contact with the external world in a particularly intense manner. Aid in the natural development of the child and gives the child a sense of self identity and security within the learning environment.
Every child has at least one sense they can rely on, even the handicapped children.
Provides a basis for learning in an orderly manner that is needed for neurological and psychological development. The sensitive periods are transitory. Sense impressions are of long duration. The sensitive periods can be past, but once sensibility has been acquired it will be long lasting. Frequency of activity heighten the senses.