The Behavior Systems Approach Assumes That

The behavior systems approach assumes that

A) the form of the conditioned response varies as a function of the system (i.e., neural, glandular, circulatory) affected by the US.
B) evolution has produced hierarchically organized sets of behavior that pertain to different biological functions and goals.
C) behavior may represent classically conditioned responses to peripheral input, whereas typical conditioned responses are mediated by the central nervous system.
D) behavior may reflect a linkage between the CS and the declining effect of a drug that occurs while the systemic drug concentration is increasing.