Sleep&Health

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editor@sleepandhealth.com May 2008 73 Issue ISSN 1547-1586 EVERYTHING YOU NEED TO KNOW ABOUT SLEEP, ALERTNESS, MOOD & PERFORMANCE May 2008 73 Issue.

Published monthly.

Inside issue 73 Alertness Mood Performance SLEEP AFTER TRAINING MAKES LEARNING PERFECT . . . . . .2

Alternative and Traditiomal Medicine ALTERNATIVE TREATMENT FOR COMMON COLD  GOOD, BUT WATCH FOR SIDE EFFECTS . . . . . . .3 HYPNOTHERAPY COULD TREAT PAINFUL GUTS IRRITABLE BOWEL SYNDROME . . . . . . . . . . . . . . . . . . .3

Memorial day

TYPICAL COMMON AND ATYPICAL UNCOMMON SIDE EFFECTS OF SLEEPING MEDICATIONS . . . . . . . . . . . . . . . . . .7

Alertness Mood Performance

Why Schizophrenics Can’t Catch a Fly and Autistic Kids Change Shorts

Our Celebration AMERICAN ACADEMY OF DENTAL SLEEP MEDICINE CELEBRATES ITS SEVENTEETH YEAR . . . . . . . . . . . . . .5 FEMALE BABY BOOMERS APPROACH THE AGE OF SLEEP PROBLEMS . . . . . . . . . . . . . . . . . . . .5

Art and Sleep JAMES ABBOTT MCNEILL WHISTLER. . . . . . . . . . . . .8

Sleep from A to Zzz TEETH GRINDING OR BRUXISM . . . . . . . . . . . . . . . . . .10

Sleep and Psychiatry SLEEP LOSS LINKED TO PSYCHIATRIC DISORDERS . . . . . . . . . . . . . . . . . . .11

And Many More

By Alexander Golbin, MD

I learned this story during my study of chaos theory or, as physicists called it, “non-linear dynamics.” I was fascinated with possibilities of applying this seemingly abstract mathematics to very concrete medical problems. The following example is adapted from the book of one of the leading physicists and science writers James Gleick, “Chaos: Making a New Science.”

I

t was an unusual gathering in 1986 in Washington, the first major conference on chaos in biology and medicine sponsored by the New York Academy of Science, the National Institute of Health, and the Office of Naval Research. Bernard Huberman, a Jew who emigrated from Argentina to California and transplanted himself from high profile mathematical physicist to a biology researcher, gave a lecture to psychiatrists about the nature of schizophrenia. To complicate the matter, his lecture was on the conference’s last day and dangerously close to lunch time. The presented ideas were difficult to digest.

Huberman presented a physical model based on the theory of nonlinear dynamics (chaos) elegantly explaining why schizophrenics have erratic eye movements. The problem was that psychiatrists have struggled for generations to define schizophrenia and classify schizophrenics, but this disease has been difficult to describe and impossible to cure. Since 1908, it was noted that schizophrenics as well as most of their relatives have a problem with tracking slow motions. When patients try to watch a slowly swinging pendulum (for example, watching pendulum that was frequently used during hypnotic treatment session at that time) their eyes cannot track the smooth motion. Ordinary eye is an especially smart instrument of tracking moving objects, otherwise we would not survive. A healthy person’s eyes stay locked on moving targets without any conscious efforts. Moving images stay frozen in place in our retina. This reflex appears in few weeks after birth. But the eyes of schizophrenic jump around disruptively in small increments, overshooting or undershooting the target and creating a constant haze of extraneous movements. No one knows

why. Attempts to train eye tracking in adult patients were not very successful so far. Physiologists who tried to solve this puzzle using traditional research logic always came to the dead end. They generally assumed that the fluctuations came from fluctuations in the signal from the central nervous system controlling the eye’s muscles. According to this logic, noisy output implies noisy input, and perhaps some random disturbances afflicting the brains of schizophrenics were reflected in disturbances of their eye movements. Huberman, as physicist, assumed otherwise and made another model. He compared slow eye movements with mechanics of swinging pendulum. There was a unit of measurement for the amplitude of the swinging pendulum and a measurement unit for its frequency. There was a term for the eye’s inertia; there were a term and measurement for damping, or friction, as well as for error correction, to give the eye a way of locking in on the target. He also explained his audience that the resulting equation is similar to another meContinued on p.2

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