1.   As a trained neurologist, he always searched for the biological basis of psychology.

2.   Based on his experience, Zuger reached the conclusions that effeminacy was a precursor to homosexuality in males and that homosexuality had a biological basis.

3.   Blair says he hopes the study will help people look at psychopathic behavior as an emotional disorder, and not as a biological basis of crime.

4.   Alcoholism has a biological basis like hypertension.

5.   Doctors have began to recognize that conditions such as schizophrenia and depression have a biological basis and can be treated with drugs.

6.   Emotional factors may exacerbate or perpetuate stuttering in those with a biological basis for the condition, she says.

7.   Evolutionary psychology is the current rubric for researchers who study the biological basis of human behavior.

8.   He also explored the biological basis for that bond, the fantasies of the mother and the autoerotic activity of the child.

9.   He raises a cluster of issues including the biological basis of personality, with accompanying questions about, say, the chemical basis of adolescent angst.

10.   New research on the biological basis of obesity and the urgency of the epidemic have changed their perspective, he said.