The psychological sensation of hunger is caused by an empty stomach. that is, the "psychological" sensation of hunger results from the brain monitoring this "physical" change in the body. this statement of the brain’s actions as an explanation of hunger sensations involves what concept?

reductionism

Explanation:

The concept of reductionism involves linking the psychological processes of the brain to the activity of the billion neurons that are a part of the nervous system.Thus, linking psychological events to brain events is what is called reductionism. A psychological event given in the question is hunger that is linked to the events that will happen in the brain as a result fo the various physical changes that will accompany this psychological event. Such physical changes that will be sensed by the brain can include lowered blood sugar, lower energy supply, change of substances in the small intestine, stomach and other parts of the digestive system.Thus, reductionism forms a link between the brain's activity and the psychological events.

Generally travels west to east but often shifts to north and south