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Finally, another issue to point and to analyze when results are discussed is the fact that depression was not consider in exclusion/inclusion criteria, considering that such condition could affect on EEG in patients with dementia as previously reported 4.ĭespite these issues, we consider that the paper is very interesting, as well as a novel research that wakes up a renew interest of qEEG in the diagnosis of AD patients. Second, it is very difficult to explain a Control Group with significant lower education compared to AD patients, mainly because this variable might affect on MMSE and, precisely, this instrument was used to differentiate cases from control patients 3.
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We believe that it is a type error because if "Hachinski scale lower than 4" was an exclusion criterion, all patients included were higher than four, so patients with vascular dementia were included 2. During the test, small sensors are attached to the scalp to pick up the electrical signals. Beyond this great paper, some concerns arouse regarding methodological issues of the research.įirst of all, the authors state that one exclusion criterion was "a score lower than 4 on the Hachinski scale in order to minimize the possibility of vascular disease and focal lesions in the neuroimaging exams". An electroencephalogram (EEG) is a recording of brain activity. F05-00846 in the Circuit Court of the 11th Judicial Circuit, in and for Miami-Dade County, Florida, styled State of Florida v. Thatcher as admissible to the jury deciding the sentence of convicted murderer Grady Nelson was granted in Cause No. In this article, the authors concluded that the study of coherence and power in the qEEG showed a relatively limited accuracy, with respect to its application in the routine clinical practice. On October 22, 2010, the defense motion to allow QEEG evidence presented by Dr.
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about the contribution of quantitative electroencephalographic (qEEG) analyses in the diagnosis of Alzheimer's disease (AD) 1. We read with great interest the article published by Fonseca et al. Quantitative Electroencephalography (qEEG) is a procedure that processes the recorded EEG activity from a multi-electrode recording using a computer. Servicio de Neurología, Hospital Italiano de Buenos Aires, Buenos Aires, Argentina DEEG is defined by the American Academy of Neurology (AAN) as the computer-based paperless acquisition and recording of EEGs, with storage in digital format on electronic media, and waveform display on an electronic monitor or other computer output device. The qEEG is an extension of the analysis of the visual EEG interpretation which may assist and even augment our understanding of the EEG and brain function. Ángel Golimstok Juan Ignacio Rojas Edgardo Cristiano QEEG is a modern type of EEG analysis that involves recording digital EEG signals which are processed, transformed, and analysed using complex mathematical.