The behaviorist would not seriously undertake to record everything that happens between stimulus and response.
No behaviorist can possibly show that the air waves set in motion by my vocalization were an indispensable stimulus.
Still, though a behaviorist, he upheld certain instinctual motivation theories.
behaviorism be·hav·ior·ism (bĭ-hāv'yə-rĭz'əm)
A school of psychology that confines itself to the study of observable and quantifiable aspects of behavior and excludes subjective phenomena, such as emotions or motives. Also called behavioral psychology.