“Enraged animals, such as this rhesus monkey at Tulane University, are
helping scientists to shed new light on how the brain governs violent behaviour.
Reared in isolation, the monkey attacks other animals, and even the researchers
working with it, at the slightest provocation. It has been established that
raising monkeys and other animals in isolation alters the biochemistry, and
perhaps the circuitry, of their brains. Somewhat similar changes may affect
improperly raised children who grow up to be violent...”
“…Assassinations, vicious muggings, and the high and rising U.S.
murder rate have pushed the subject of violence to the forefront among American
concerns. At times, the nation appears to be oddly fascinated by the phenomenon,
Consider, for example, the recent proliferation of grisly movies, some of
which seem to glorify violence as a cult. We have been hearing an abundance
of theories about the causes of violence, which variously attribute it to
the war in Vietnam, to permissiveness, to drug addiction, to racial frustrations,
and even to the legacy of the wild frontier…”
“…The most recent research suggests that the biological and environmental
causes of violence are so closely intertwined as to require a less fragmented
search for remedies. The research is showing, among other things, that the
environment itself can leave a physical imprint on a developing brain. The
wrong kind of upbringing can make a young animal, and probably a child too,
more inclined to violent behaviour as an adolescent or an adult. The hopeful
augury of this research is that such behaviour can be prevented if steps are
taken to assure that young brains develop properly…”
“…Studies of criminals who have repeatedly committed violent offences
show that they have a higher incidence of brain damage than the general population.
Moreover, recent research is uncovering subtle forms of brain damage, unrecognised
until now. No one knows for sure how many people in the U.S. suffer from brain
damage, but some doctors place the number at 10 million to 20 million. Not
all of them are violent, of course, but in addition there are many thousands
who suffer from delusions or other forms of mental disturbance that make them
dangerous. David Hamburg, head of the psychiatry department at Stanford University
Medical School, estimates that the nation harbors some 200,000 potential presidential
assassins. "Many manage their delusions on the fantasy level," says
Hamburg. "Others engage in other forms of violent behaviour..."
“…What many people with brain abnormalities may have in common
are pathways in the brain that failed to develop properly in infancy because
of faulty upbringing, just as visual nerve pathways fail to develop properly
in animals deprived of light. The fault, especially during the first two years
of life when the brain is growing the fastest, lies in lack of physical affection,
which an infant needs as much as nourishment. Earlier researchers had usually
blamed emotional, social, or learning deficiencies for behavioural disturbances
in infants raised in a foundling home. But James Prescott, a young neuropsychologist
at the U.S. National Institute of Child Health and Human Development, suggests
that there is a more fundamental biological reason. He maintains that normal
pathways in the brain do not fully develop in children deprived of Such expressions
of affection as touching, cuddling, and being carried about. Instead, he says,
this "somatosensory deprivation" leaves them with damaged central
nervous systems…”
Taken from Gene Bylinsky’s essay ‘New Clues To The Causes Of Violence’ First published in ‘Fortune’ Jan 1973.
