On 14 Mar 2006 at 9:39, Don Allen wrote:

> Hi Joan-
> 
> I'm not sure which "excellent" research you are refering to. Perhaps
> you could provide some citations. For a broad overview of the research
> in this area the following site might be useful:
> http://members.aol.com/slevay/page22.html 

I'll second the recommendation to check out the webpage of Simon LeVay.  
He's the noted neurphysiologist who contributed the research showing a 
difference in brain anatomy between gays and straights referred to in 
Joan's post.  He has a fair assessment of his own finding there (under 
brain anatomy,  in the  section on "Third interstitial nucleus of the 
anterior hypothalamus (INAH1)".

I've now seen the _60 Minutes_ segment on "The science of sexual 
orientation".   I thought it was excellent, although it's too bad they 
didn't make it longer.  They got two of the biggies of the field, Michael 
Bailey and physiological psychologist Marc Breedlove,  but I guess they 
didn't have time for Simon LeVay too. A transcript of the segment is 
available at
http://www.cbsnews.com/stories/2006/03/09/60minutes/main1385230.shtml

Their primary lapse, it seemed to me, concerned their discussion of the 
birth order effect in homosexuality (that the more older brothers one has 
the greater the probability of being gay, for males only). Not for 
featuring the research, which was entirely appropriate, but in failing to 
give credit for it to Ray Blanchard at the Clarke Institute of Psychiatry 
in Toronto (they did show his paper, and you could just make out his name 
on it). In fact, they should have let him speak for himself on his 
research, instead of having Bailey summarize it. 

Relating this to another thread of mine, in Judith Rich Harris's new 
book, _No Two Alike_, she takes on the issue of birth-order effects in 
one of her chapters (continuing what she started in _The Nurture 
Assumption_), and persuasively trashes the topic as it affects adult 
development outside the family. There are no birth order effects, she 
concludes.  In doing this she takes on the "genius" Frank Sulloway and 
his grand theory of birth-order effects (in his unaccountably acclaimed 
book "Born to Rebel"). The result isn't pretty for Sulloway, but 
entertaining and instructive for us. 

Harris admits only one exception to her conclusion that outside the 
family, birth order effects don't exist. It may be easily overlooked, as 
it appears only in a footnote. It's Blanchard's work. 

Stephen

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Stephen L. Black, Ph.D.          
Department of Psychology     
Bishop's University                e-mail:  [EMAIL PROTECTED]
Lennoxville, QC J1M 1Z7
Canada

Dept web page at http://www.ubishops.ca/ccc/div/soc/psy
TIPS discussion list for psychology teachers at
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