Dementia and its Relation to Cerebrovascular Disease

  • S. Hoyer


According to Mayer-Gross, Slater and Roth (1), dementia is based on a global deterioration of higher mental functions and intellectual capacities. It may be defined as a global disturbance of mental functioning in its cognitive, intellectual and emotional aspects. McHugh and Folstein (2) defined dementia as a deterioration of cognitive functions including memory, abstract reasoning, attention, language and perception without prominent changes in consciousness. Disturbances in mood with anxiety and depression, in affectiveness, paranoid symptoms, delusions, hallucinations, personality changes and catastrophic reactions were also described to be associated with dementia. For clinical and pathophysiological reasons, primary and secondary forms of dementia should necessarily be separated. According to Sir Martin Roth (3), secondary dementia symptoms will have been of relatively short duration with rather abrupt onset. Their intellectual impairment may be patchy and inconsistent and may show marked fluctuations in severity as related to the severity of the extracerebral disease. Clouding and confusion would seem to be typical in secondary rather than primary dementia. In this paper, only secondary dementias due to circulatory disorders will be discussed.


Cerebral Blood Flow Hypertensive Encephalopathy Brain Blood Flow Vascular Type High Mental Function 


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Copyright information

© Springer Science+Business Media New York 1985

Authors and Affiliations

  • S. Hoyer
    • 1
  1. 1.Dept. of Pathochemistry and General NeurochemistryUniversity of HeidelbergHeidelbergGermany

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