New studies on how genetics, neurotransmitters, viruses, fetal development, and dysfunction of the immune system may lead to various mental health disorders have been conducted as a result of theories...

New studies on how genetics, neurotransmitters,

viruses, fetal development, and dysfunction of the

immune system may lead to various mental health

disorders have been conducted as a result of theories

in which field?

1. Behavior therapy

2. Psychoanalysis

3. Humanistic theory

4. Psychobiology