YOUR MIND AND YOUR EMOTIONS: MENTAL RETARDATION
The majority of mental illnesses which people suffer do not stem from lack of intelligence. However, there are conditions in which the intellect is involved. We use the term ‘mentally retarded’ to describe people whose intelligence is below normal due to defective brain development. Degrees of mental retardation were formerly described by the terms ‘idiot,’ ‘imbecile,’ and ‘moron.’ Today we find it more satisfactory to classify them as ‘profound,’ ‘severe,’ ‘moderate,’ and ‘mild.’
Sometimes it is not easy to recognize the higher grades of mental retardation. Methods of determining the intelligence, such as the intelligence test, which establishes the intelligence quotient, or IQ are excellent. But they deal with human beings and not with material things that can be weighed and measured exactly. No matter how carefully allowances are made for emotional factors, they cannot always be completely separated from the intellect. There have been cases in which a child’s IQ has changed; it may have been low due to apathy, which resulted from an emotional state and disappeared with treatment; or due to cultural differences. There have also been children whose general physical condition was below par and caused them to do badly on intelligence tests.
I cannot overemphasize the fact that only a very small fraction of all mental retardation cases is primarily due to inheritance. If you have any cause to worry about your family or that of your spouse, talk it over with your doctor.
Some defects causing mental deficiency can be corrected before any permanent damage is done. For example, cretinism can be overcome by the early administration of thyroid extract.
Sometimes an abnormality in the early development of the embryo causes mental retardation, as in the case of the mongoloid baby. Certain disorders of the mother may affect the infant’s intelligence while he is still in the womb, such as syphilis, or German measles (rubella) contracted early in her pregnancy.
Mental retardation can result from a birth injury—that is, damage to the baby’s brain while he is being born.
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admin on March 12th, 2009 | File Under General health | No Comments -