1.   Can TV violence cause aggressive behavior?

2.   Psychologists hypothesized that his odd behavior was caused by a chemical imbalance in the brain.

3.   An autopsy revealed a pecan-sized tumor in his brain, but Lavergne said doctors disputed the possibility that it caused his behavior.

4.   After receiving a suspension . . . she discloses her disability, states that it causes her behavior and requests a leave of absence for treatment.

5.   But determining what causes a behavior can be even more complicated than determining the cause of a disease.

6.   But she did mention studies in Japan that found little support for the theory that video games cause aggressive behavior.

7.   First, make sure there is no underlying medical problem causing the behavior.

8.   Gusty thunderstorm winds may also cause erratic behavior of existing fires.

9.   Investigations concluded that before the shooting, Jones, who was not armed, had consumed alcohol and a hallucinogenic drug that can sometimes cause aggressive behavior.

10.   It causes behavior otherwise considered inappropriate.