I just read the wikipedia article more carefully. Her mental retardation before the procedure is highly disputed.
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She was not mentally retarded. … It could be she had an IQ of 90 in a family where everyone was 130, so it looked like retardation, but she did not fall into IQ 75 and below, which is the definition of mental retardation. … There is no way I can picture her at less than a 90 IQ, but in that family, 90 would be considered retarded.”
I googled for reference about the lack of iq reduction and it’s not as easy as Annoyance claims.
I found: http://www.springerlink.com/content/x952046576561443/
http://www.mytherapy.com/discussion/topic.asp?TOPIC_ID=19021
In the case of Rosemary Kennedy the lobotomy lead to mental retardation although I don’t know if IQ was specifically measured: http://en.wikipedia.org/wiki/Rosemary_Kennedy
In other places I read that although the IQ is maintained the victim loses the capability for abstract reasoning.
Rosemary Kennedy was considered mentally retarded before the operation.
That is, her intellectual prowess (or lack thereof) was a pre-existing condition.
(edited for clarification)
I just read the wikipedia article more carefully. Her mental retardation before the procedure is highly disputed.
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