Dementias: Turning to Slowing of Background Plotting a Frequency Subalf

Angel Molina Leon

doi:10.4172/2161-0460.1000i101

ISSN: 2161-0460

Journal of Alzheimers Disease & Parkinsonism

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Dementias: Turning to Slowing of Background Plotting a Frequency Subalf

Angel Molina Leon^*

Hospital of St. Lucia. Clinical Neurophysiology Service, Cartagena, Spain

Corresponding Author:: Angel Molina Leon
Neurofisiologia Clinica
Centro Medico Virgen De La Caridad
Cartagena-Murcia, Spain
Tel: 968325258
E-mail: molinadelaasuncion@gmail.com

Received date: August 14, 2015; Accepted date: August 18, 2015; Published date: August 25, 2015

Citation: Leon AM (2015) Dementias: Turning to Slowing of Background Plotting a Frequency Subalf. J Alzheimers Dis Parkinsonism 5: i101.doi:10.4172/2161-0460.1000i101

Copyright: © 2015 Leon AM. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

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Keywords

Dementias; Firda; Thalamus –corticales; Encephalopathy

Dementias

Often defragmentation parietal-occipital alpha rhythm to 9-10 Hz. Turning to slowing of background plotting a frequency subalfa.

Firda

Firda are intermittent outbreaks of frontal delta activity in adults. They are associated with metabolic, toxic, or hypoxic encephalopathy and supratentorial, usually subcortical lesions.

Although firda is a nonspecific sign, it is highly suggestive of the early stages of a coma and is an early sign of dysfunction warning system. They are caused by interaction between the thalamus -corticales circuits. It indicates some degree of cortical alteration.