stimulus discrimination definition
Discriminative Stimulus (S D) Definition. The discriminative stimulus is defined as âa stimulus in the presence of which a particular response will be reinforcedâ (Malott, 2007, p. 202).s the intoductory quote states, the discriminative stimulus is âa stimulus in the presence of which a particular response will be reinforcedâ (Malott, 2007, p. 202).