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Event-related potentials and the diagnosis of short-term verbal memory disorders in cerebrovascular disease

E. Alonso-Prieto, E. Palmero-Soler, C. Trujillo-Matienzo, E. Cuspineda-Bravo, I. Suárez-Luis [REV NEUROL 2004;39:521-524] PMID: 15467988 DOI: https://doi.org/10.33588/rn.3906.2003478

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Volumen 39 | Number 06 | Nº of views of the article 5.513 | Nº of PDF downloads 888 | Article publication date 16/09/2004

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ABSTRACT

INTRODUCTION Cerebrovascular disease can cause different memory disorders depending on the area of the brain involved. More specifically, ischemic lesions in the frontal region can be associated to short-term verbal memory disorders.

PATIENTS AND METHODS Two groups of subjects were studied, 10 of whom were patients who presented a frontal cerebral infarction and 10 healthy controls. They were administered a memory task involving word recognition. While they were performing the task the electrical activity of their brains was recorded in order to examine event-related potentials (ERP).

RESULTS The patients’ performance of the task was poorer than that of the healthy control subjects. Likewise, while the latter displayed a predominantly frontal distribution of ERPs, in the patients the frontal activity diminished and was seen to be chiefly temporoparietooccipital.

CONCLUSIONS These findings allow important conclusions to be drawn about the characteristics of the memory disorder presented by these patients. KeywordsCerebrovascular disease Memory disorder Neuropsychology Working memory CategoriesNeuropsicología Patología vascular

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Original

Event-related potentials and the diagnosis of short-term verbal memory disorders in cerebrovascular disease