How can I tell the difference between anti-social behavior and mental illness?

How can I tell the difference between anti-social behavior and mental illness?

Harvey Hoyo (President, California School Counselors Association) gives expert video advice on: How can I tell the difference between anti-social behavior and mental illness?

Anti-social and behavior and mental illness vary because of the intent of that behavior. Sometimes the behavior can be the same but it's what causes that behavior. Mental illness is a medical malfunction of the brain, let's say, that would require a physician, a psychologist to help the parent determine that there is a medical problem or, basically, a medical problem. Anti-social behavior could be a response to a particular issue that the student is trying to deal with. And, that would take a school counselor, a classroom teacher's help, parent help to determine that, as well as the student themselves.