11.   Celebrity is a mind-altering substance that can cause personality changes such as delusions of grandeur and feelings of persecution.

12.   His recovery, and subsequent personality change, made medical history.

13.   I have seen little or no personality changes in sterilized pets I have known, other than to make them even more affectionate.

14.   Now this forbidding institution is undergoing a personality change and trying to reinvent itself as customer-friendly.

15.   Ruth had undergone a mysterious personality change that defied psychiatric explanation.

16.   Symptoms can vary widely from hot flashes to personality changes and depression to palpitations.

17.   Symptoms of persistent Postconcussion Syndrome include headaches, dizziness, fatigue, personality changes, depression, anxiety, irritability, poor memory and difficulty concentrating.

18.   That can lead to permanent personality changes.

19.   That vehicle, nicknamed Sybil by its creators because of its frightening personality changes, becomes the star of the show.

20.   That, combined with the constant fear of harm and the total dependency on their captors, led the airmen into startling and fairly long-lasting personality changes.