Grig,

Preconceived idea change leading to a personality change.

>That is not a personality change, but a preconceived idea change. A personality change would be becoming from a serial killer the wonderfull person on earth and that for real.
>
>To answer to the original question, I don't think personality change once set.
>
>>Personality changes. Set by circumstances. What happens in your life will redefine or refine it.
>>
>>Example: You never visited a country but always heard that people from there are not nice. So when you cross people from that country visiting your place you never try to engage in a conversation with them.
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>>That is until the day your daughter brings home her new boyfriend. And the boyfriend is from that country. After speaking a lot with him you realize that there are many interesting sides to his culture, what he eats, his religion...
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>>So that will probably change the way you think about persons from other countries. How will that change your personality? You'll become more open to other cultures...