Utah Special Function Officer (SFO) Practice Exam

The psychological sign of addiction that involves an unexplained change in mood and personality is best captured by the concept of sudden mood swings. Addiction can significantly impact an individual's emotional state, leading to fluctuations in mood that may seem abrupt and uncharacteristic of their usual behavior. These mood swings can result from the substances affecting brain chemistry and the individual's overall mental health, causing them to react differently in various situations.

In addition, the complexity of addiction can manifest through a combination of several psychological factors, which is why the answer indicates "All of the above." Lack of motivation can accompany mood changes as the individual's priority shifts towards obtaining and using the substance, often at the expense of other interests and responsibilities. Irritability is another common symptom, which can emerge as a reaction to the absence of the substance or as a direct effect of substance use. Together, these signs encapsulate the broader spectrum of how addiction can alter mood and personality in those affected.