Showing posts with label transsexuality/FtM/MtF. Show all posts
Showing posts with label transsexuality/FtM/MtF. Show all posts

Monday, March 15, 2010

New Presentation: “Disordered or Just Different? Myth, Science, and Sexuality”


I will be a speaker at the first annual conference of the Center for Inquiry/Chicago on Saturday, April 24th. The theme of this conference is: “Dangerous Nonsense - Exploring the Gulf between Science and its Impostors.” This theme is the perfect context for my talk entitled “Disordered or Just Different? Myth, Science, and Sexuality” that will focus on the scientific evidence on core sexuality obtained over the last fifty years and the medical profession’s treatment of intersex, homosexual, and transsexual peoples.

Here’s a conference description and schedule:

The Center For Inquiry/Chicago First Annual Spring Conference:
Dangerous Nonsense: Exploring the Gulf between
Science and its Impostors

Saturday, April 24th, 2010
8:30 a.m. to 5:15 p.m.

111 E. Wacker Drive, Chicago 60601
26th Floor - Conference Room

Bunkum grows like a weed in American culture - whether it's climate change denial, conspiracy theories, or healing by prayer. Some ideas are not only nonsense, they are dangerous nonsense, with serious implications for our lives. In this age where misinformation can be spread more easily than ever before, understanding the role of the scientific process in human affairs is critical to our survival. This conference will present top scientists in biology, physiology, and physics, each of them gifted at explaining both the science and its impostors of their respective fields. Join us and gain valuable insight into exploring the world through science and reason.
Conference Schedule
8:30 a.m. Check-in and Registration
Optional: Set up your evening dinner reservation with a nearby restaurant
9:15 a.m. Welcome - the Center For Inquiry/Chicago Board
9:25 a.m. Dr. Massimo Pigliucci, Professor of Philosophy at the City University of New York
“Nonsense on Stilts: How to Tell the Difference Between Science and Bunk”
10:25 a.m. Coffee Break
Dr. Pigliucci will also be available to autograph his new book
10:45 a.m. Dr. Veronica Drantz, Professor of Physiology at DePaul University’s College of Nursing
“Disordered or Just Different? Myth, Science and Sexuality”
11:30 a.m. Dr. Michael Albrow, Nuclear Physicist at both the Tevatron (Fermilab) and the Large Hadron Collider (CERN)
“What's True and What's Untrue in Physics Today”
12:15 p.m. Announcements
12:20 p.m. Lunch on your own
(Your packet will include lunch options in the immediate vicinity)
1:40 p.m. Dr. Ron Pine, Explorer, retired biology professor, and debunker of Intelligent Design “Intelligent Design or ‘No Model’ Creationism: Why It Can't Qualify Even as Pseudo-Science”
2:25 p.m. The Mentalist “Mystopher” & Carolee
“Serving Fork-Fulls of Magic and Imagination”
3:00 p.m. Dr. Dario Maestripieri, Professor of Comparative Human Development, Neurobiology, Evolutionary Biology, and Psychiatry at the University of Chicago
“What Primatology and Evolutionary Psychology Tell Us About the Evolution of Human Behavior”
3:45 p.m. Coffee Break
Dr. Pigliucci will also be available to autograph his new book
4:05 p.m. Panel Discussion with all of our presenters
“The Future of Science and Science Education in the U.S.”
5:15 p.m. Adjourn
Post-Conference
5:30 p.m. Optional: Post-Conference discussion and drinks (cash bar) at the Hyatt Regency Hotel (directions included in your packet - it’s about a block away)
6:30 p.m. Optional: Dinner (your cost) in downtown Chicago - some of these will be “hosted” by CFI/Chicago Board members (your packet will include a selection of places and cuisines)
Late Optional: Music clubs (your cost) - some of these will be “hosted” by CFI/Chicago Board members (your packet will include a selection of places and musical styles)

Learn more about the speakers here.
CLICK HERE TO REGISTER ONLINE

Sunday, August 30, 2009

Ending Professional Bigotry Against Transsexual People

In this video I present the scientific evidence showing that transsexuality is a natural variation and that transsexual people are simply different, not disordered. Consequently, the American Psychiatric Association should remove "gender identity disorder" from the Diagnostic and Statistical Manual of Mental Disorders. My thanks to Chicago's Gay Liberation Network . This video of the cable television broadcast is in FOUR PARTS.
PART 1


PART 2


PART 3


PART 4


References specifically referred to in this video are (in order of mention):
  • Zhou, J.N., Hofman, M.A., Gooren, L.J. and Swaab, D.F.. A Sex Difference in the Human Brain and its Relation to Transsexuality. NATURE, 378: 68-70 (1995)
  • Kruijver, Frank P. M., Zhou, J., Pool, Chris W., Hofman, Michel A., Gooren, Louis J. G and Swaab, Dick F. Male-To-Female Transsexuals Have Female Neuron Numbers In A Limbic Nucleus. J CLIN ENDOCRINOL METAB, 85: 2034-2041 (2000)
  • Garcia-Falgueras, Alicia and Swaab, Dick F. A Sex Difference In The Hypothalamic Uncinate Nucleus: Relationship To Gender Identity. BRAIN, (Nov 2, 2008)

Wednesday, July 29, 2009

Milton Diamond Reviews A Half Century Of Science On Sexual Development


Clinical Implications Of The Organizational And Activational Effects Of Hormones

Milton Diamond, who I regard as the most important figure in modern sexology, has reviewed the scientific history of the nature-nurture debate about sexual behavior. This is a wonderful summary of the science, the theories, and the medical controversies regarding intersexuality and transsexuality written by a leader in the field. Below is the abstract of Dr. Diamond’s article, “Clinical implications of the organizational and activational effects of hormones” which was published in the journal Hormones and Behavior in March 2009.

"Debate on the relative contributions of nature and nurture to an individual's gender patterns, sexual orientation and gender identity are reviewed as they appeared to this observer starting from the middle of the last century. Particular attention is given to the organization-activation theory in comparison to what might be called a theory of psychosexual neutrality at birth or rearing consistency theory. The organization-activation theory posits that the nervous system of a developing fetus responds to prenatal androgens so that, at a postnatal time, it will determine how sexual behavior is manifest. How organization-activation was or was not considered among different groups and under which circumstances it is considered is basically understood from the research and comments of different investigators and clinicians. The preponderance of evidence seems to indicate that the theory of organization-activation for the development of sexual behavior is certain for non-human mammals and almost certain for humans. This article also follows up on previous clinical critiques and recommendations and makes some new suggestions."

This is the paper to read if you are looking for a quick way to be brought up to date on the evidence for the “organization-activation theory” of sexual development and an understanding of the controversies on “core sexuality”. Here is the complete article entitled Clinical Implications Of The Organizational And Activational Effects Of Hormones.

Sunday, July 26, 2009

"Gender Puzzle" - What is a female? a male?



Here is the summary of the documentary "Gender Puzzle".

"Are we on the cusp of discovering what determines gender? The old mantra - all girls have XX chromosomes and all boys have XY - is no longer reliable. Scientists are now looking beyond chromosomes to "brain sex" and the role of newly discovered genes. By studying transsexuals and people on the gender extremes, they believe they can unlock the gender puzzle. This high-quality documentary looks at the new and challenging science of gender.



Tall, thin and strikingly beautiful, model Christie North always felt female. But when she was 15, she discovered she’d been born with male chromosomes. “There was no mention at school that there can be mix ups with your chromosomes”, she complains. “Many people have the same problem – more than you think.” As well as girls with XY chromosomes, one in 500 born with a double XX as well as a Y. Most only find out about their condition when they try to father children and discover they’re infertile. Until the 1990s, gender was largely about chromosomes. But this principle was challenged when a new gene was discovered which is needed to start the process of ‘maleness’. “I think we’re starting to understand how the brain is hard-wired differently between males and females”, explains Prof. Vince Harley. Scientists are now looking at a further 54 genes which are turned on differently in males and females. They may help to explain why people identify as one gender or the other, regardless of chromosomes. There is a small but growing body of evidence that transsexuals’ brains are hard-wired in the uterus to be either male or female. A Dutch study found that male-to-female transsexuals have the same brain features as other women instead of being identical to men’s. “There is a public perception that transsexualism is a lifestyle choice”, states Prof Vince Harley. “To reaffirm a biological basis is quite empowering for them.” These discoveries are starting to redefine the gender debate. In the 60s and 70s, it was believed the nature of a child’s upbring had such a strong influence that an intersex condition could be corrected through the right upbringing. The child was allocated a sex, underwent genital surgery and was then raised in its assigned sex. But many of these children had a traumatic childhood, unable to reconcile their identity with their bodies. For them, the ‘brain sex’ theory makes perfect sense. The theory of brain sex is also challenging the law. ‘Kevin’, a transsexual, was threatened with imprisonment if he married his female partner. He successfully contested this by providing the court with evidence suggesting a biological basis to his transsexualism. In his verdict, Justice Richard Chisolm concluded: “In view of all the evidence, the things that characterise transsexuals are as much biological as mental.” Far more controversial than adults changing gender, is the issue of teenagers who want to. “All the medical evidence indicates that the earlier children with transsexualism receive treatment, the better their lives are”, reasons lawyer and transsexual Rachel Wallbank. But others disagree. “You’re wondering all the time whether the young person actually has enough life experience to make that judgement”, states Craig Andrews. He runs a support group helping transsexuals and is concerned about the increasing number of young people who want treatment. As science discovers more about what determines gender, making these decisions may become a little easier. But for now, we are only just starting to understand just how complex the biology is."

And here is the complete transcript of this video.

See my PowerPoint slides for more information on intersexuality and transsexuality.

Friday, July 24, 2009

"Science and Sexuality" Presentation at Michigan Womyn's Music Festival


My presentation entitled "Science and Sexuality" will be given as a workshop at the National Womyn's Music Festival (aka MichFest) which runs from August 4th through the 9th in the woods near Walhalla, Michigan.
The evidence presented in my PowerPoint slides will be thoroughly discussed and additional information not in the slides will be woven into the talk. As always, questions and discussion will follow the presentation.

Here are the details:
Event: Workshop entitled "Science and Sexuality"
Day: Thursday, August 6th
Time: 3-5pm
Location: MichFest near Walhalla, Michigan
Site: Media Tent


MichFest is the first and the biggest of all women's music festivals and is attended by thousands of women from all over the United States who will coalesce in a tent city that pops up overnight in the woods of northern Michigan for the thirty-fourth year this August. As a largely lesbian event, this is a great venue for reaching a large number of women who already know the pains of being sexually different in a binary gender culture. If the MichFest audience receives the scientific information about intersex and transsexual persons as sympathetically as the audience at the National Women's Music Festival in Wisconsin did just a few weeks ago, then I will be very pleased.

Friday, July 10, 2009

Five Genders of Indonesia

Sex is biological. Gender is defined by culture. There are five genders in Indonesia. These Indonesian transsexuals seem comfortable with their somatic selves. Is this because the culture "welcomes" them and they are not forced to fit themselves into one of only two categories?