EEG Basal Cortical Rhythms

Overview

4.8 out of 5 (4 Reviews)

Credits

1.00

Post Assessment Questions

5

Expiration Date

28 Feb 2026

Last Reviewed

1 Mar 2023

Estimated Time To Finish

60 Minutes


 
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Activity Description

Electroencephalography (EEG) is a neurophysiological test that measures changes in neuronal activity associated with current flows in the extracellular space produced by local field potentials. Such field potentials can be either excitatory, also known as excitatory postsynaptic potentials (EPSP,) or inhibitory, also known as inhibitory postsynaptic potentials (IPSP) in nature. EEG tracing records not only the physiologic cortical activity, but inevitably also captures fields of electrical activity generated by other sources such as cardiac, myogenic, and electromagnetic, among others. It is substantial for the electroencephalographer to be able to distinguish normal physiologic brain activity from those recorded from non-physiologic sources. Such knowledge is critical to avoid EEG misinterpretation. Basal cortical rhythms are physiologic alpha-range rhythms that present in normal healthy brains. They encompass 3 rhythms: (1) Alpha rhythm, (2) Mu rhythm, and (3) Third rhythm. Not a lot is known about the Third rhythm. Wickets rhythm is considered a fragmented Third rhythm and will be discussed in depth. This activity reviews the role of the interprofessional team in EEG basal cortical rhythm evaluation.

Target Audience

This activity has been designed to meet the educational needs of physicians.

Learning Objectives

At the conclusion of this activity, the learner will be better able to:

  • Describe the EEG neurophysiological test.
  • Identify potential EEG sources of error.
  • Review the three basal cortical rhythms and benign EEG variants
  • Outline the role of the interprofessional team in EEG basal cortical rhythm and benign EEG variants evaluation.

Disclosures

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COMMERCIAL SUPPORT: This activity has received NO commercial support.

Continuing Education Accreditation Information


This activity has been planned and implemented in accordance with the accreditation requirements and policies of the Accreditation Council for Continuing Medical Education (ACCME) through the joint providership of the Quillen College of Medicine, East Tennessee State University, and StatPearls, LLC. The Quillen College of Medicine, East Tennessee State University is accredited by the ACCME to provide continuing medical education for physicians.

Quillen College of Medicine, East Tennessee State University designates this activity for a maximum of 1.00 AMA PRA Category 1 CreditsTM. Physicians should only claim credit commensurate with the extent of their participation in the activity.

This activity is reported to the following Maintenance of Certification (MOC) boards:
American Board of Anesthesiology
  • Neuro Anesthesia
  • Sleep Medicine
American Board of Internal Medicine
  • Sleep Medicine
American Board of Pathology
  • Neuropathology (incl. Neuromuscular)
American Board of Pediatrics
  • Pediatric Neurology
  • Sleep Medicine

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  1. Register for the activity and create a StatPearls login.     
  2. Review the target audience, learning objectives, and disclosure information.
  3. Study the educational content in the activity.
  4. Choose the best answer to each activity test question. To receive credit, you must pass the test questions with a minimum score of 100%.
  5. Complete the post-activity assessment.
  6. Obtain a certificate.

For information on the applicability and acceptance of continuing education credit for this activity, please consult your professional licensing board.

Disclaimer

Faculty may discuss investigational products or off-label uses of products regulated by the US Food and Drug Administration. Readers should verify all information before employing any therapies described in this educational activity.

The information provided for this activity is for continuing education purposes only and is not meant to substitute for the independent medical/clinical judgment of a healthcare provider relative to diagnostic and treatment options of a specific patient’s medical condition. The information presented does not necessarily reflect the views of StatPearls or any commercial supporters of educational activities on statpearls.com. StatPearls specifically disclaims responsibility for any adverse consequences resulting directly or indirectly from information in the course, for undetected error, or through a participant's misunderstanding of the content.

Cancellation Policy: Cancellations must be received in writing and a money-back guarantee is provided if not completely satisfied.

  • StatPearlsand and Quillen College of Medicine, East Tennessee State University reserve the right to cancel any course due to unforeseen circumstances. StatPearls andQuillen College of Medicine, East Tennessee State University will not be responsible for other expenses incurred by the participant in the unlikely event that the program is canceled.

Medium or Media Used:

  • Computer Requirements: Internet Access
  • E-mail Address

Equal Opportunity

  • StatPearls andQuillen College of Medicine, East Tennessee State University are Equal Opportunity/Affirmative Action/Equal Access Institutions. 

 

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    Reviews

    Beatriz G. on 10/7/2020

    Bibhu Prasad N. on 11/8/2021

    Micheal M. on 11/17/2021

    Dr Jagveer S. on 5/5/2023

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