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EEG Mu Rhythm in Typical and Atypical Development

EEG Mu Rhythm in Typical and Atypical Development

Published on: April 9, 2014

Standard EEG and the difficult-to-assess mental status.

Kanwaldeep S Sidhu¹, Richard Balon, Victor Ajluni

¹Department of Psychiatry and Behavioral Neurosciences, Wayne State University School of Medicine, 2751 East Jefferson Avenue, Suite 400, Detroit, MI 48207-4166, USA. ksidhu@med.wayne.edu

Annals of Clinical Psychiatry : Official Journal of the American Academy of Clinical Psychiatrists

|May 15, 2009

Summary

The standard electroencephalogram (SEEG) can aid in diagnosing delirium in psychiatric patients when mental status is difficult to assess. Diffuse EEG slowing is a key indicator of encephalopathy, supporting its use in clinical evaluations.

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Area of Science:

Neuroscience
Psychiatry
Clinical Neurology

Background:

Delirium is a common differential diagnosis in acute psychiatric care.
Assessing delirium is challenging when patients cannot communicate their orientation.
The utility of standard electroencephalogram (SEEG) in this context is unclear.

Purpose of the Study:

To investigate the role of SEEG in evaluating delirium in psychiatric patients.
To synthesize existing literature on EEG findings in delirium.

Main Methods:

Conducted comprehensive literature searches on "delirium" and "EEG" (1950-2007).
Focused on 45 articles, with 12 undergoing stringent review.
Analyzed SEEG findings, also considering quantitative EEG.

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Main Results:

Diffuse slowing on EEG is a recognized sign of encephalopathy.
EEG abnormalities are frequently reported in psychiatric patients with delirium.
Specific patterns of EEG abnormalities were noted across studies.

Conclusions:

Standard electroencephalogram (SEEG) can be a valuable tool for diagnosing delirium.
EEG findings, particularly diffuse slowing, support the diagnosis of encephalopathic processes.
This diagnostic aid is especially useful for patients with impaired mental status assessment.