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Brain Waves

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Brain waves are electrical signals generated by the neurons in the brain, which are regularly monitored to measure mental activities. Brain waves and their frequency ranges can be measured using an electroencephalogram or EEG. There are four main types of brain waves, each with distinct characteristics:

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Pulse rhythm refers to the pattern of pulsations within specific intervals, offering valuable insights into the regularity or irregularity of the heart's beats as observed through the pattern of pulsation within specific intervals. A regular pulse exhibits a consistent heart rate with uniform waveforms and pulsation force, variations of which can be classified as normal, weak, or bounding.
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Organization of the Brain

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Neural Control of Respiration

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Related Experiment Video

Updated: Jul 12, 2025

Preparation of Rhythmically-active In Vitro Neonatal Rodent Brainstem-spinal Cord and Thin Slice

Preparation of Rhythmically-active In Vitro Neonatal Rodent Brainstem-spinal Cord and Thin Slice

Published on: March 23, 2019

[When the Brain Dictates the Rhythm].

Andrea Burri¹, Nina Graf¹, Michael Studhalter¹

¹Kantonsspital Olten, Olten, Schweiz.

|October 19, 2023

Summary

This summary is machine-generated.

Herpes Simplex Virus (HSV) encephalitis can rarely cause sinus node dysfunction, leading to syncope. This case highlights the importance of considering HSV encephalitis in patients with unexplained arrhythmias and neurological symptoms.

Area of Science:

Neurology
Cardiology
Infectious Diseases

Background:

Herpes Simplex Virus (HSV) encephalitis is a rare neurological condition.

Keywords:

HSV encephalitis asystole sinus arrhythmia sinus node dysfunction syncope

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HSV encephalitis can, in rare instances, lead to sinus node dysfunction and cardiac arrhythmias.

Autonomic nervous system regulation can be affected by HSV's typical infestation of the insular cortex.