This paper is only available as a PDF. To read, Please Download here.
Abstract
Thirteen dementia of the Alzheimer type (DAT) patients and fifteen old-age major depressive
disorder (OAD) patients were investigated by polysomnography. The sleep was recorded
during two nights after a 1 week wash-out period of psychotropic drugs. No statistically
significant differences between the two groups were found concerning sleep continuity
or architecture. The amount of REM sleep was significantly lower in DAT in comparison
with OAD patients (11.7% verses 18.5%). Also, total REM density as well as the density
of the first REM period were significantly lower in the DAT compared with the OAD
patient group (15.8% verses 32.5%, 14.9% verses 38.1%, respectively), REM latency
did not differ between both groups. Because REM latency is known from other studies
to be shortened in depressed patients due to a cholinergic hyperactivity, the opposite
finding, i.e., prolongation of REM latency, was expected for DAT patients. This assumption,
however, could not be confirmed in the present study. It is concluded that REM density
may better differentiate between DAT and OAD.
Keywords
To read this article in full you will need to make a payment
Purchase one-time access:
Academic & Personal: 24 hour online accessCorporate R&D Professionals: 24 hour online accessOne-time access price info
- For academic or personal research use, select 'Academic and Personal'
- For corporate R&D use, select 'Corporate R&D Professionals'
Subscribe:
Subscribe to Biological PsychiatryAlready a print subscriber? Claim online access
Already an online subscriber? Sign in
Register: Create an account
Institutional Access: Sign in to ScienceDirect
References
- Diagnostic and Statistical Manual of Mental Disorders. American Psychiatric Association, Washington DC1987 ed. 3.
- REM latency in Alzheimer's disease.Biol Psychiatry. 1989; 25: 320-328
- Biochemical assessment of serotonergic and cholinergic dysfunction and cerebral atrophy in Alzheimer's disease.J Neurochem. 1983; 41: 266-272
- Mini-mental state: a practical method for rating the cognitive state of patients for the clinician.J Psychiatr Res. 1975; 11: 189-198
- Rapid eye movement (REM) sleep: cholinergic mechanisms.Psychol Med. 1984; 13: 501-506
- Depressive pseudodementia: a suggested diagnostic profile.Biol Psychiatry. 1983; 18: 215-255
- Development of a rating scale for primary depressive illness.Br J Soc Clin Psychol. 1967; 6: 278-296
- Evolving concepts of sleep cycle generation: from brain centers to neuronal populations.Behav Brain Sci. 1986; 9: 371-448
- A cholinergic-adrenergic hypothesis of mania and depression.Lancet. 1972; 2: 632-635
- On the issue of drug washout prior to polysomnographic studies in depressed patients.Neuropsychopharmacology. 1992; 6: 11-16
- From early to late adulthood: changes in EEG sleep of depressed patients and healthy volunteers.Biol Psychiatry. 1991; 29: 979-993
- Clinical diagnosis of Alzheimer's disease: report of the NINCDS-ADRDA Work Group under the auspices of Department of Health and Human Services Task Force on Alzheimer's disease.Neurology. 1984; 34: 939-944
- Necropsy evidence of central cholinergic deficits in senile dementia.Lancet. 1977; 1: 189
- A manual of standardized terminology, techniques, and scoring system for sleep stages of human subjects. National Institute of Health Publication 204, U.S. Government Printing Office, Washington D.C1968
- EEG sleep in elderly depressed, demented, and healthy subjects.Biol Psychiatry. 1985; 20: 431-442
- Reliable discrimination of elderly depressed and demented patients by electroencephalographic sleep data.Arch Gen Psychiatry. 1988; 45: 258-264
- Effect of RS 86 on REM latency in schizophrenia.Psychiatry Res. 1991; 38: 89-92
- The influence of the cholinergic agonist RS 86 on normal sleep with regard to sex and age.Psychiatry Res. 1988; 24: 137-147
- Rapid eye movement sleep measures of Alzheimer's type dementia patients and optimally healthy aged individuals.Biol Psychiatry. 1984; 19: 721-734
- Strukturiertes Klinisches Interview für DSM-III-R.Beltz Test GmbH, Weinheim1990
- Strukturiertes Interview für die Diagnose der Demenz vom Alzheimer Typ, Multiinfarktdemenz und Demenzen anderer Ätiologie nach DSM-III-R und ICD-10.LOGOMED Verlag, Munich1990
Article info
Publication history
Received in revised form:
June 1,
1993
Received:
November 20,
1992
Identification
Copyright
© 1993 Published by Elsevier Inc.