HETEROSEXUAL & HOMOSEXUAL
BRAIN DIFFERENCES
irenebaron.com 5 January 2024
Physical brain differences between human heterosexuals and homosexuals are proven.
The only problem now is educating the public to facts about “brain gender.”
BRAIN GENDER DIFFERENCES – Studies show sexual orientation is reflected in brain structure.
1. Differences between homosexuals and heterosexuals are found in:
A. Total brain volume
B. Gray and white matter proportions and volumes
C. Tissue densities of several structures including the insula, hippocampus, thalamus, putamen, amygdala, and the cerebellum.
2. Sexual orientation-related differences are found in cortical regions of vision.
3. Sexual orientation differences are found in the thickness of the cortex at the front of the brain.
4. Some brain regions of the homosexual women tend to be similar or identical to those in heterosexual men.
5. Magnetic resonance imaging (MRI) showed the two brain hemispheres are almost exactly the same size in heterosexual women and homosexual men.
6. The putamen has a larger gray matter volume in homosexual individuals compared to heterosexuals. The greater differences were found in homosexual women. The putamen functions in harmony with the cortex through a ganglia network to perform and produce complex behaviors.
7. Homosexual men have a smaller thalamus volume and thinner right orbitofrontal and right visual cortice than heterosexual men. The right visual cortical area processes information from the left eye.
8. A section of the anterior hypothalamus in homosexual men and women is smaller than that found in heterosexual men and women in a study of over 18,600 brain MRI’s of adults 40-69 years old who stated their sexual preferences.
9. The calcarine sulcus showed the most reliable sexual orientation‐related differences in male and female homosexuals. The calcarine sulcus divides the visual cortex into two parts. It is the area of the cerebral cortex that processes visual information.
The brain anatomy differences mentioned above may cause behavioral and cognitive traits related to sexual orientation of individuals. Cognitive traits include:
- Conductive reasoning ability to draw conclusions from specific to general facts
- Learning skills
- Memory capacity
- Speed of information processing.
Dr. Murat Altinay, Clinical Psychiatrist and Head of LGBT Mental Health Services at the Cleveland Clinic, stated: “It’s not genitalia that determines gender.” He reported that a closer look at brain structure and function reveals that transgender people have striking similarities to their identified gender rather than their biological gender – even before hormone therapy.”
Altinay highly promotes the term “brain gender” and observes that “the brain is the main source when it come to understanding your own gender and gender identity.”
Additional information by Altinay may be found in Cleveland Clinic podcasts. Topics include:
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“Barriers to healthcare for transgender persons”
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“How to interact with transgender patients”
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“Biopsychosocial underpinnings of gender dysphoria.” His podcasts may be found at: https://consultqd.clevelandclinic.org/the-brain-and-gender-identity-current-evidence-and-implications-for-practice-podcast/
In 1993, Dean H. Hamer and his associates at the U.S. National Institute of Health published research results indicating “men with specific genes were more likely to be homosexual than were men without those genes.” This addressed X chromosomes containing gene Xq28 that increases the “likelihood of an individual to be homosexual.” Prior to that study there had been arguments that homosexuality had an environmental cause and could be reversed.
Simon Levay, at the University of California, found size differences for a region of the brain between homosexual and heterosexual men. His result was one of the first that discussed physiological differences in the brain.
In 1991, John M. Bailey at Northwestern University in Illinois published his results showing a genetic inheritance of homosexuality. In addition, Bailey found that both monozygotic (formed when one fertilized egg separated) and dizygotic (formed when two eggs were fertilized) twins sharing the same DNA were more likely to be homosexual than were other related siblings.
Hamer studied Bailey’s information and results. He began his own investigation by recruiting 76 homosexual men from the outpatient HIV clinic at the National Institutes of Health Clinical Center in Washington, D.C. His team also recruited a second sample of 38 homosexual brothers, since they share much of their DNA. Sexual orientation was self-reported and categorized. The men stated they were either homosexual or heterosexual.
Hamer hypothesized that homosexuality was inherited through the mothers since boys obtain their X chromosome only from their mother. His team analyzed family trees and DNA of 114 families of homosexual men who filled out questionnaires about childhood gender identification, childhood and adolescent development, adult sexual behavior, mental health history and had a medical genetic screen.
The 114 men studied were asked to rate homosexual tendencies of members of their families. The family members were contacted to verify the accuracy of the 114 reports. The results indicated the genetically inherited X chromosome variable, and not the environment, was the cause of the homosexuality.
Hamer concluded there is strong evidence that the Xq28 gene contributes to make sexual orientation. His results have been debated.
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NOTE: Writing and researching as a Christian, I know this is a topic which has caused much consternation by the public. In polite society the subject has been muted even though the Bible discusses such topics. I asked myself why this is being discovered at this time.
Since the brain differences have been discovered and proven independently by research institutions, it must be that that humans have been born since the beginning of creation with these differences. I have hypothesized that this is God's will and His timing that the factual information be known now. I don't know why.
Perhaps it is a time of testing for the rest of us. What is difficult to comprehend is the agony of those throughout history who have been born with a different brain and found themselves not fitting in with the norms of society. Evidently, since the beginning of man's existence, these brain differences have men with a woman's brain and women with a man's brain as far as sexual preference. What horror, hate, and confusion these people must have experienced through time. Even now.
In the Bible section written by disciple John in Chapter 9 is the discussion as to why the man blind from birth was made blind. The Pharisees thought it was because of sin/s of his parents. The Bible writes that the man was made blind from birth in order for Jesus Immanuel to show He healed the man's eyes so the man could see. The whole purpose of the blind man's life was to prove a point for God. Though Jesus, the purpose of the man's life was to test others.
John 9:39-41: “And Jesus said, For judgment I am come into this world, that they which see not might see; and that they which see might be made blind. And some of the Pharisees which were with him heard these words, and said unto Him, Are we blind also? Jesus said unto them, If ye were blind, ye should have no sin: but now ye say, We see; therefore your sin remaineth.”
Since the facts of sexual preference in the brain have been brought forth and proven as written above in the blog and references, you now “see” the truth. Ponder that and what your mindset should be.
There have been times in history when people thought it was nearing time for Christ's second coming on Earth. It appears to many it is that way now. If there is to be a weaning of people who love others as God wishes and those who do not, the knowledge as presented in this blog and in science journals may be a judgement test by God for all of us.
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REFERENCES
https://www.nature.com/articles/s41598-021-84496-z
https://www.nature.com/articles/s41598-021-84496-z#citeas
https://www.karger.com/Article/Abstract/182597
Altinay, Murat. Dr. https://my.clevelandclinic.org/staff/19888-murat-altinay
Baron, Irene. Blog references hormones in drinking water and homosexuality. https://irenebaron.com/irene-baron-blog/blog/what-s-in-your-drinking-water
Brain Structure changes: Votinov, M., Goerlich, K.S., Puiu, A.A. et al. “Brain structure changes associated with sexual orientation.” Sci Rep 11, 5078 (2021). https://doi.org/10.1038/s41598-021-84496-z
Cleveland Clinic: https://consultqd.clevelandclinic.org/the-brain-and-gender-identity-current-evidence-and-implications-for-practice-podcast/
Christoph A (2021) “Cross‐sex shifts in two brain imaging phenotypes and their relation to polygenic scores for same‐sex sexual behavior: A study of 18,645 individuals from the UK Biobank. Human Brain Mapping.” https://doi.org/10.1002/hbm.25370
Del Mauro, G., Del Maschio, N., Sulpizio, S. et al. “Investigating sexual dimorphism in human brain structure by combining multiple indexes of brain morphology and source-based morphometry.” Brain Struct Funct 227, 11–21 (2022). https://doi.org/10.1007/s00429-021-02376-8
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Servick. Kelly. Study of Gay Brothers May Confirm X Chromosome Link to Sexuality. Science. 17 November 2014, https://www.science.org/content/article/study-gay-brothers-may-confirm-x-chromosome-link-homosexuality
Siecus: https://siecus.org/resources/the-guidelines/
Siecus: https://siecus.org/resources/2022-state-of-sex-education-legislative-look-ahead/
Siecus: https://siecus.org/the-siecus-stae-profiles-2022/
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