Lori used to rush to her infant son and pick him up every time he cried. lately, she has stopped rushing to him, and he has decreased his crying. according to the principles of operant conditioning, this is due to

The correct answer would be, Extinction. According to the principles of Operant Conditioning, this is due to the Extinction.

Explanation:

Operant Conditioning is a process of leaning, in which it is seen that how the strength or intensity of a behavior is modified or changed by reinforcement or punishment. In this type of learning, behaviors are controlled through consequences. Positive reinforcement, Negative reinforcement, Positive punishment and Negative Punishment are main concepts of Operant Conditioning.

Now Extinction is the phenomenon which manifests itself by non reinforced conditioning response over time. For example, as given in the question, the infant son of Lori stops crying when she stops rushing to him whenever he cries. It means, Lori's behavior changed her son's response.

if you tell me the video, i may be able to answer your question.

answer; the basal forebrain;