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n polysomnograph; polygraph performed during sleep. Physiological variables such as pulse, blood pressure, and respiration are monitored and charted.

Patient discussion about PSG

Q. Could someone please explain about the Fibromyalgia and sleep studies? My cousin who is 15 yrs old is suffering from sleep related problems. Should I suspect that he have fibromyalgia syndrome? Could someone please explain about the Fibromyalgia and sleep studies?

A. You could have given more details about your cousin’s sleep related problem. I could not say anything directly for your cousin as I don’t know about his actual problem. But generally saying, Individuals who have been diagnosed with fibromyalgia/who suspect they have fibromyalgia syndrome, sometimes submit themselves to sleep studies. Sleep studies can provide confirmation of a patient's sleep related problems by monitoring brain wave activity. By monitoring such neural activity, information can be gleaned regarding the quality and nature of sleep that a fibromyalgia patient experiences. Recent evidence indicates that fibromyalgia may be related to insufficient amounts of deep level delta wave sleep. Delta wave sleep is the level of sleep at which a person's body both recuperates and regenerates. Failure to reach or maintain deep level sleep may have something to do with the pain that is experienced by those who have fibromyalgia.

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References in periodicals archive ?
In the August LINGUISTICS AND PHILOSOPHY, two papers show for the first time that there are human languages that cannot possibly be described by a context-free phrase-structure grammar.
Similarly, Chomsky contended that while context-free phrase-structure grammars may succeed in distinguishing the grammatical sentences of some languages, they do so only with unnecessarily complex rules.
In particular, several researchers began to look again at phrase-structure grammars to see if they could come up with a theory that was mathematically neater and more tightly constrained than transformational theory.
These conclusions encouraged Pullum and others to examine context-free phrase-structure grammars more closely.