Posts Tagged ‘violence genes’

We, they and the roots of violence

December 4, 2022

The application of physical force is the motive force for all material events in our universe. The use of physical force as a tool – whether for survival or anything else – is enabled by the genes of every living thing. The ability of any living thing to exert physical force is enabled and constrained by its physiology.

violence: (n) the use of physical force so as to injure, abuse, damage, or destroy; extreme physical force; vehemence, intense, turbulent, destructive

Any use of physical force by any living creature is not always considered a violent act. If the physical force applied is insufficient to cause damage it does not qualify as violence. Usually the intention to injure, damage or destroy is needed to convert the mere act of using damaging, physical force to being a violent act. In language the word is often used even if no such intention exists. For example hammering a nail can be described as violent. An incoherent idiot may be excused his behaviour because of his violent thoughts. When a volcano erupts or when the growing roots of a tree destroy a house – say – they are often referred to as violent though it would be difficult to ascribe any destructive intentions.

Violence (like any force) is a vector. It has an object acted upon, a magnitude and a direction. Without the concepts of we and they there would be no human violence.

We and They (Rudyard Kipling)

Father and Mother, and Me,
Sister and Auntie say
All the people like us are We,
And every one else is They.
And They live over the sea,
While We live over the way,
But-would you believe it? –They look upon We
As only a sort of They!

We eat pork and beef
With cow-horn-handled knives.
They who gobble Their rice off a leaf,
Are horrified out of Their lives;
While they who live up a tree,
And feast on grubs and clay,
(Isn’t it scandalous? ) look upon We
As a simply disgusting They!

We shoot birds with a gun.
They stick lions with spears.
Their full-dress is un-.
We dress up to Our ears.
They like Their friends for tea.
We like Our friends to stay;
And, after all that, They look upon We
As an utterly ignorant They!

We eat kitcheny food.
We have doors that latch.
They drink milk or blood,
Under an open thatch.
We have Doctors to fee.
They have Wizards to pay.
And (impudent heathen!) They look upon We
As a quite impossible They!

All good people agree,
And all good people say,
All nice people, like Us, are We
And every one else is They:
But if you cross over the sea,
Instead of over the way,
You may end by (think of it!) looking on We
As only a sort of They!

It seems to me that the use of physical force between humans is converted to violence only when

  1. we and they exist,
  2. the magnitude of the force applied is sufficient to injure, damage or destroy, and
  3. the intention to do harm exists.

Human violence thus needs an object, magnitude and intention. A pat on the back is not violence. The same magnitude of force used to murderously swat a fly is violence. Intention requires a mind. For things with minds a we and a they exist. In fact, it is the concept of a we and a they which is necessary for intention to emerge. Predators are we and prey are them. Weeds are them. I am, of course, a part of we. When a lion kills the offspring of its predecessor, the we obliterate the them. We are invariably good. They are not always bad but we are never bad.

War, genocide, torture, the Holocaust, the atrocities in Rwanda or Myanmar, violent conflict in Ukraine, are not examples of abnormal human behaviour. They are an integral part of human behaviour and though we often call such behaviour “inhuman”, it is just a label. Caligula and Genghis Khan and Hitler and Pol Pot were all human. Potential Hitlers are being born every day. All past atrocities are just examples of how humans could – under appropriate circumstances – behave even today.

“There, but for the grace of God go I” – John Bradford

Atrocity is a part of that primal human behaviour which is rooted in We and They. Whatever it is that makes humans a social animal (presumably our genes) creates our concept and our need for We and They. From families and tribes to gangs and nations, it is being able to conceptualise a we which has enabled survival and led to development. It is the concept of we which underlies cooperation and which has given us language and development. And it is being this social animal with a sense of we which has distinguished humans from all other species in the level of cooperation that has been achieved. Much of our cooperation is manifested as the joint and coordinated application of physical force. That is true whether in building the Taj Mahal, going to the moon or implementing Hitler’s final solution. When survival – or perceived survival – is at stake We may always resort to atrocity against Them. Our evolutionary success is rooted in We and They and in our ability to apply physical force.

Along with We comes They and then violence becomes a word.

All good people agree,
And all good people say,
All nice people, like Us, are We
And every one else is They:


“Free will” is further circumscribed as two genes associated with violence are identified

October 29, 2014

The range of application of human “free will” is increasingly being circumscribed as we identify genes which are associated with specific behavioural characteristics. This is not to say that any gene or set of genes makes certain specific behaviour inevitable – but it does say that that particular behaviour is more probable for that individual. Perhaps it is more accurate to say that an individual’s gene set defines (and therefore constrains) the envelope of possible behaviour. But that itself means that he can only exercise “free will” within the envelope of possible behaviour that is available to him.

A new study from Finland has identified two genes associated with violent crime. The study of 900 Finnish criminals is published in Molecular Psychiatry.

MedPage:

Variants in two genes were significantly more common in Finnish criminals convicted of multiple violent crimes compared with the general population, researchers said.

Statistical analysis indicated that 5% to 10% of all severe violent crime in Finland could be attributed to these variants, affecting the genes for monoamine oxidase A (MAOA) and CDH13, a neuronal membrane adhesion molecule, according to Jari Tiihonen, MD, PhD, of the Karolinska Institute in Stockholm, and colleagues.

Offenders who had committed 10 or more serious violent crimes were significantly more like to carry one of several loss-of-function variants in the MAOA gene (odds ratio 2.66, 95% CI 1.60-4.42) or the so-called rs11649622 variant in the CDH13 gene (OR 2.72, 95% CI 1.77-4.15), versus participants in population-based survey studies in Finland who were considered representative of the general population.

Criminal offenders with no violent crime convictions showed no increases in risk of carrying the flagged MAOA/CDH13, with an OR of 1.12-1.13 relative to the population-based sample, which did not approach statistical significance.

In their report published online in Molecular Psychiatry, they acknowledged that crime “is a complex phenomenon, and the outcome is shaped by both genetic and environmental factors.”

But that doesn’t mean that genetic contributors cannot be identified, they argued. “It is plausible that while research of the genetic background of criminal or violent behavior is hampered by many confounding factors, focusing on extreme phenotypes might yield more robust results,” Tiihonen and colleagues wrote.

J Tiihonen et al, Genetic background of extreme violent behavior, Molecular Psychiatry , (28 October 2014), doi:10.1038/mp.2014.130

This may not have much practical application yet, and there are certainly many more genes which also predispose to violence and a genetic screening for “violent” tendencies is not coming any time soon. Violent tendencies are also certainly not only due to genes and nurture surely has a very significant part to play.

AbstractIn developed countries, the majority of all violent crime is committed by a small group of antisocial recidivistic offenders, but no genes have been shown to contribute to recidivistic violent offending or severe violent behavior, such as homicide. Our results, from two independent cohorts of Finnish prisoners, revealed that a monoamine oxidase A (MAOA) low-activity genotype (contributing to low dopamine turnover rate) as well as the CDH13 gene (coding for neuronal membrane adhesion protein) are associated with extremely violent behavior (at least 10 committed homicides, attempted homicides or batteries). No substantial signal was observed for either MAOA or CDH13 among non-violent offenders, indicating that findings were specific for violent offending, and not largely attributable to substance abuse or antisocial personality disorder. These results indicate both low monoamine metabolism and neuronal membrane dysfunction as plausible factors in the etiology of extreme criminal violent behavior, and imply that at least about 5–10% of all severe violent crime in Finland is attributable to the aforementioned MAOA and CDH13 genotypes.

I conceive an individual’s genes as defining the range of behaviour available to a human and his “nurture” as then determining his actual behaviour by the exercise of what we call “free will”. What is becoming increasingly obvious though, is that any individual’s “free will” is severely circumscribed. The application of “free will” is restricted to be within the envelope of behaviour that the genes allow.

Behaviour envelopes

I envision an individual whose limits are set by his genes. He cannot think faster or run faster or behave differently to what his genes allow. Thus no amount of “free will” (or nurture) could get an individual to behave outside the envelope of his possible behaviour as set by his individual set of genes.

 


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