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Link: Frontal predominance of a relative increase in sleep delta and theta EEG activity after sleep loss in humans (PDF)

The effect of sleep deprivation (40 h) on topographic and temporal aspects of electroencephalographic (EEG) activity during sleep was investigated by all night spectral analysis in six young volunteers. The sleep-deprivation-induced increase of EEG power density in the delta and theta frequencies (1-7 Hz) during nonREM sleep, assessed along the antero-posterior axis (midline: Fz, Cz, Pz, Oz), was significantly larger in the more frontal derivations (Fz, Cz) than in the more parietal derivations (Pz, Oz). This frequency-specific frontal predominance was already present in the first 30 min of recovery sleep, and dissipated in the course of the 8-h sleep episode. The data demonstrate that the enhancement of slow wave EEG activity during sleep following extended wakefulness is most pronounced in frontal cortical areas.

 

The fulll document can be downloaded via PDF at this link – http://www.researchgate.net/profile/Christian_Cajochen/publication/11955869_Frontal_predominance_of_a_relative_increase_in_sleep_delta_and_theta_EEG_activity_after_sleep_loss_in_humans/links/02bfe5113b73dd3097000000.pdf.

Copyright © Authors Cajochen, C., Foy, R., Dijk, D. J., Czeisler, C. A.

This website is not a substitute for independent professional advice. Nothing contained in this site is intended to be used as medical advice. No articles, personal accounts, or other content are intended to be used to diagnose, treat, cure or prevent any disease, nor should it be used for therapeutic purposes or as a substitute for your own health professionals advice.

Video: Understanding EEG Part1 – What is electroencephalography (EEG)?

EEG,Understanding EEG, nervous system, neurons, brain, brain lobes and hemispheres, What is electroencephalography (EEG)

 

This website is not a substitute for independent professional advice. Nothing contained in this site is intended to be used as medical advice. No articles, personal accounts, or other content are intended to be used to diagnose, treat, cure or prevent any disease, nor should it be used for therapeutic purposes or as a substitute for your own health professionals advice.

Video: EEG, Brain waves Alpha, Beta, Theta, Delta

A video presentation brought to viewers from BioMedResearches on Youtube.com.

 

This website is not a substitute for independent professional advice. Nothing contained in this site is intended to be used as medical advice. No articles, personal accounts, or other content are intended to be used to diagnose, treat, cure or prevent any disease, nor should it be used for therapeutic purposes or as a substitute for your own health professionals advice.

Link: Theta Waves

This page comes from Scottsdale Neurofeedback Institute and talks about Theta waves – what they are and what they can indicate. This is especially useful for those of us who have had and/or continue to have abnormal EEG results showing “excessive theta waves” during waking EEG and/or non-sleep deprived EEG studies.

The full text can be found at http://scottsdaleneurofeedback.com/.

 

Copyright © Scottsdale Neurofeedback Institute 2015

This website is not a substitute for independent professional advice. Nothing contained in this site is intended to be used as medical advice. No articles, personal accounts, or other content are intended to be used to diagnose, treat, cure or prevent any disease, nor should it be used for therapeutic purposes or as a substitute for your own health professionals advice.