Desensitization is considered a(n) therapy

A problem with fast-mapping a word is that

the child forgets most words learned this way. when words are learned this way, good grammar is lost. the child may misuse the word. it interferes with other aspects of cognitive development.

An imaginary perception, such as seeing, hearing, or smelling something that does not exist in the external world, is called a(n)

a. illusion. b. hallucination. c. stroboscopic movement. d. Müller­Lyer illusion.