Language is based on sound units called morphemes

In the movie DareDevil, the main character suffered an injury to his eyes, and for the rest of his life was able to "see sounds." His interpretation of one sort of sensory input as another type of perception demonstrates __________

a. synesthesia b. sensory adjustment c. perceptual adaptation d. pragnanz perception

The Premack principle suggests that a preferred activity can be used to reinforce a non-preferred task

Indicate whether this statement is true or false.