When research participants were asked to raise their middle finger through a motion sensor while reading a story, the behaviors they read about were perceived as more hostile. this best illustrated:

behavior feedback phenomenon.              

Explanation:

Behavior feedback phenomenon: The behavior feedback phenomenon is defined as the tendency of an individual's behavior to influence or impact others and one's feelings, thoughts, and actions.

A person can get influenced by others' actions or behaviors through the observational learning process. A person tries to change and adapt according to the environmental stimuli. So, the behavior can be changed through these factors.

In the question above, the statement best illustrates the behavior feedback phenomenon.

answer; caravan;