Homosexuality and frontal lobe injury

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Graphic of cerebral lobes. Light brown section of the graphic depicts the area of the frontal lobe. (Click on graphic to enlarge)

Below is information relating to frontal lobe injury and homosexuality.

Front lobes and brain function

The Centre for Neuro Skills says about the frontal lobes and their function:

The frontal lobes are considered our emotional control center and home to our personality. There is no other part of the brain where lesions can cause such a wide variety of symptoms (Kolb & Wishaw, 1990). The frontal lobes are involved in motor function, problem solving, spontaneity, memory, language, initiation, judgement, impulse control, and social and sexual behavior. The frontal lobes are extremely vulnerable to injury due to their location at the front of the cranium, proximity to the sphenoid wing and their large size. MRI studies have shown that the frontal area is the most common region of injury following mild to moderate traumatic brain injury (Levin et al., 1987).

There are important asymmetrical differences in the frontal lobes. The left frontal lobe is involved in controlling language related movement, whereas the right frontal lobe plays a role in non-verbal abilities. Some researchers emphasize that this rule is not absolute and that with many people, both lobes are involved in nearly all behavior.[1]

Frontal lobe damage and homosexuality

Graphic of a Human brain showing the four major lobes of the cerebrum. Below the cerebral cortex are the cerebellum, pons, olive, and medulla oblongata.

As noted above, the frontal lobe plays a role in controlling sexual behavior.[2]

According to the 2007 medical journal article (and its abstract) entitled Neurological control of human sexual behaviour: insights from lesion studies which was published in the Journal of Neurology, Neurosurgery, and Psychiatry:

We review the human literature examining the effects of neurological insult on human sexual behaviour. We provide a synthesis of the findings to date, and identify key brain regions associated with specific aspects of human sexual behaviour. These include subcortical and cortical regions, with the mesial temporal lobe and the amygdala in particular being a crucial structure in the mediation of human sexual drive...

Disinhibited sexual behaviour has been reported following damage to the frontal lobes, particularly the orbitofrontal region of the limbic system.

Kolarsky and colleagues54 examined the relationships between “sexual deviation”, age of lesion onset and localisation of lesion (temporal vs extratemporal). The authors defined two diagnostic categories: (1) “sexual deviation”, involving a deviation of sexual object (for example, paedophilia). Homosexuality was included in this category, which would now be considered inappropriate, and (2) “sexual disturbances other than deviations”, including orgasm in response to stimuli unrelated to the subject's sexual preference, hypersexuality and hyposexuality...

An association between temporal lobe abnormalities and paedophilia has been reported by Mendez and colleagues.[3]

Homosexuality, irreligion/religion and front lobe size

See also: Religiosity and larger frontal lobes and Atheism and the brain

According to Scientific American:

Several studies have revealed that people who practice meditation or have prayed for many years exhibit increased activity and have more brain tissue in their frontal lobes, regions associated with attention and reward, as compared with people who do not meditate or pray.[4]

Irreligion/religion and homosexuality

Peter LaBarbera

The conservative journalist Peter LaBarbera of Americans for Truth wrote: "Anyone who has researched the subject of homosexuality knows that many of the most staunch advocates of homosexuality are those who hold a decidedly secular outlook."[5]

At the same time, atheistic communist regimes in history historically have often taken a negative view of homosexuality and within Western World atheism, there is a segment of that atheist population which takes a negative view of homosexuality. See: Atheist actions against homosexuals.

The Barna Group found regarding atheism and morality that those who hold to the worldviews of atheism or agnosticism in America were more likely, than theists in America, to look upon the following behaviors as morally acceptable: illegal drug use; excessive drinking; sexual relationships outside of marriage; abortion; cohabitating with someone of opposite sex outside of marriage; obscene language; gambling; pornography and obscene sexual behavior; and engaging in homosexuality/bisexuality.[6] Given the many diseases associated with homosexuality, the biblical prohibition against homosexuality is quite arguably one of the many examples where the Bible exhibited knowledge that was ahead of its time.

See also