The man with the rhesus monkey brain (was Re: Jim's poor view of the Neanderthal)

Glenn Morton (GRMorton@gnn.com)
Sat, 14 Sep 1996 15:49:01

Stephen Jones wrote:
Paul wrote:
>PD>So we see evidence for speech somewhere within your model of man's
>>evolution. Language is good evidence for intellect, and intellect is
>>good evidence for, and is a good correlation with, God-given humanness.
>>This we observe in ourselves today. Do you agree that, putting your 5+
>>million origin date aside, Adam and Noah possessed that same God given
>>humanness in terms of intellect and spirit that we possess today? If
>>not, on what basis do you draw your conclusion?
>
>You are touching on a crucial theological problem with Glenn's 5.5
>MYA Homo habilis Adam theory/model. If Adam was a different species
>from all humans today, with only 1/3rd our cranial capacity and only
>a rudimentary language, how could God justly charge him with
>disobedience and impute to us his original sin? (Rom 5:12-19; 1Cor
>15:21-:22).

It depends upon whether or not he understood the consequences. I notice that
you conveniently ignore the data I cited of people with brains as small as 108
cc 1/10th of our cranial capacity, who appear to be normal human beings. Does
this mean that if one is otherwise normal but has a small brain which is the
size of a rhesus monkey, he is free from the imputation of sin?

Are you saying that sinfulness is determined by the size of the brain? If
that is true then Neandertal is more sinful than we!

>
>I have read somewhere that at best Homo habilis would have had the
>mind of a 6 year old today. No human court would hold a 6 year-old
>accountable for his actions, so why should God? The whole point of
>Adam being our representative and/or federal head is that he was
>essentially the same as us.
>
Stephen, would you get the article "Is your Brain Really Necessary?" from
Science? You never seem to deal with things like this. It says:

"'There's a young student at this university," says Lorber, 'who has an IQ of
126, has gained a first-class honors degree in mathematics, and is socially
completely normal. And yet the boy has virtually no brain.' The student's
physician at the university noticed that the youth had a slightly larger than
normal head, and so referred him to Lorber, simply out of interest. 'When we
did a brain scan on him,' Lorber recalls, 'we saw that instead of the normal
4.5-centimeter thickness of brain tissue between the ventricles and the
cortical surface, there was just a thin layer of mantle measuring a millimeter
or so. His cranium is filled mainly with cerebrospinal fluid."~Roger Lewin,
"Is Your Brain Really Necessary," Science, Dec. 12,1980, p. 1232.

A millimeter or so layer of brain inside a cranium yields 108 cc of actual
brain. This is the size of a rhesus monkey, and yet this young man above is
as sinful as you or I.

I went to the library today and found the following. Whatever makes man a
spiritual being, it is ABSOLUTELY NOT the size of his brain:

"During the course of treatment for severe and often life-threatening
neurological disorders it has sometimes proven necessary to remove an entire
hemisphere (hemispherectomy) or all of the cortex of one hemisphere
(hemidecortication). (For the present discussion I treate these procedures as
equivalent as there is little evidence of any significant behavioral
difference.) The behavior of people with such removals is especially
interesting, for there is remarkable behavioral recovery, especially in
children. Perhaps the most striking result is that regardless of age, after
complete removal of the left hemisphere most people are capable of some
language and do not experience the dense global aphasia seen in patients with
large left hemispher strokes. They are, however, significant behavioral
sequelae of hemidecortication. Full scale IQ is usually at least one standard
deviation below normal, but it is surprisingly high in view of the extent of
the removal. There is also rather dramatic variability in the outcome, as
several patients have been reported to have IQs that are above
average.."~Bryan Kolb, Brain Plasticity and Behavior, Mahwah, New Jersey:
Lawrence Erlbaum Assoc. 1995), p. 87-88
**
"As noted, following right or left hemispherectomy for early
epileptogenic lesions, the remaining hemisphere and other intact resdual
structures can provide for the development of normal adult language, verbal
and nonverbal reasoning, and memory."~Aaron Smith, "Early and Long-Term
Recovery from Brain Damage in Children and Adults: Evolution of Concepts of
Localization, Placticity, and Recovery,", in C.R. Almli and S. Finger,
editors, Early Brain Damage: Research Orientations and Clinical Observations,
1, 299-323, p. 308
**
"The remarkable plasticity of the infant brain has also been illustrated
in long-term studies of overall cerebral development in 600 children with
congenital hydrocephalus. Lorber reported the development of normal and even
superior intelligence in 50% of those with even the most severe hydrocephalus
(CAT scans showing ventricular expansion occupying 95% of the cranium). He
also noted that one of thes patients 'gained a first-class honours(Sheffield
University) degree in mathematics and is socially completely normal. And yet
the boy has virtually no brain.' (Quoted by Lewin, 1980, p. 1232)"~Aaron
Smith, "Early and Long-Term Recovery from Brain Damage in Children and Adults:
Evolution of Concepts of Localization, Placticity, and Recovery,", in C.R.
Almli and S. Finger, editors, Early Brain Damage: Research Orientations and
Clinical Observations, 1, 299-323, p. 310

Let me note that if 95% of a normal 1350 cc cranium is ventrical, that leaves
about 67 cc for the brain itself. This is smaller than any of the hominid
brains.

**
"In contrast to the pattern of drastic selective impairment and sparing
of either linguistic and verbal or nonverbal, visual, and ideational functions
in adults with either right or left hemispherectomy for tumor, studies of
initial and long-term effects of 36 infantile hemiplegics with left
hemispherectomy and 28 with right hemispherectomy revealed no evidence of
consistent or significant differences between hemispheres. Although the
overall findings revealed that earlier damage to the remaining hemisphere
limited subsequent developmental potentials in most of the patients, the
remarkable capacities of the intact residual structures were demonstrated in
long-term follow-up studies in two cases. At a 25-year follow-up; each had
obtained a college degree and had enjoyed a successful career as an executive,
following a right hemispherectomy in one case and a left hemispherectomy in
the other. Thus, as Smith noted, the findings demonstrate that at birth each
of the two cerebral hemispheres contains the neuroanatomical and substrate
necessary for the development of normal or even superior adult language and
verbal and nonverbal cognitive functions."~Aaron Smith, "Early and Long-Term
Recovery from Brain Damage in Children and Adults: Evolution of Concepts of
Localization, Placticity, and Recovery,", in C.R. Almli and S. Finger,
editors, Early Brain Damage: Research Orientations and Clinical Observations,
1, 299-323, p. 308
**

These college graduates have the brain size of an Australopithecus. Are they
not human, Stephen? Your insistence that a being with a small brain can not
be human evicts the above cited people from the human race. How do you think
they feel about that?

>Glenn's theory fails on theological as well as scientific grounds.
>

I also noticed that you ignored my documentation that some form of Homo exists
as far back as 4.2 myr. This is something you have chided me about since the
beginning. Are you not going to congratulate me for a possible successful
prediction of my theory? Or are you going to continue to ignore it as you
ignore the above sinful, small-brained HUMANS?

glenn

Foundation,Fall and Flood
http://members.gnn.com/GRMorton/dmd.htm