1. Normal and abnormal development of a person’s ability to communicate;
2. Disorders and problems concerning a person’s ability to communicate;
3. Deficiencies in a person’s sensory, perceptual, motor, cognitive and social skills necessary to enable the person to communicate; and
4. Sensorimotor functions of a person’s mouth, pharynx and larynx.
(Added to NRS by 1979, 1253; A 1991, 171)