We use cookies to distinguish you from other users and to provide you with a better experience on our websites. Close this message to accept cookies or find out how to manage your cookie settings.
We use cookies to distinguish you from other users and to provide you with a better experience on our websites. Close this message to accept cookies or find out how to manage your cookie settings.
from Part I - Basics
Published online by Cambridge University Press: 24 June 2021
The normal EEG doesn’t change much during adult life, but it must be interpreted in the context of physiological states (awake, drowsy, or asleep). Normal wakefulness is characterized by a reactive posterior dominant alpha rhythm, anterior faster beta activity, eye blink, and muscle artifact. Transition to drowsiness is typically characterized by attenuation of the posterior dominant rhythm, diffuse slowing into theta range, emergence of slow lateral eye movements, and dissipation of muscle artifact. Vertex waves are the architectural feature of stage I sleep. Positive Occipital Sharp Transients of Sleep (POSTS) may also occur. Sleep spindles and K complexes are the architectural feature of stage II sleep. Mitten waves are a normal variant, while dyshormia is abnormal. Slow wave sleep is characterized by diffuse high-amplitude semi-rhythmic delta slowing. Rapid eye movement sleep is characterized by eye movement artifact and sawtooth waves.
To save this book to your Kindle, first ensure [email protected] is added to your Approved Personal Document E-mail List under your Personal Document Settings on the Manage Your Content and Devices page of your Amazon account. Then enter the ‘name’ part of your Kindle email address below. Find out more about saving to your Kindle.
Note you can select to save to either the @free.kindle.com or @kindle.com variations. ‘@free.kindle.com’ emails are free but can only be saved to your device when it is connected to wi-fi. ‘@kindle.com’ emails can be delivered even when you are not connected to wi-fi, but note that service fees apply.
Find out more about the Kindle Personal Document Service.
To save content items to your account, please confirm that you agree to abide by our usage policies. If this is the first time you use this feature, you will be asked to authorise Cambridge Core to connect with your account. Find out more about saving content to Dropbox.
To save content items to your account, please confirm that you agree to abide by our usage policies. If this is the first time you use this feature, you will be asked to authorise Cambridge Core to connect with your account. Find out more about saving content to Google Drive.
