Search on: DELTA RHYTHM 
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Descriptor English:   Delta Rhythm 
Descriptor Spanish:   Ritmo Delta 
Descriptor Portuguese:   Ritmo Delta 
Synonyms English:   Electroencephalography, Delta Rhythm  
Tree Number:   E01.370.376.300.175
E01.370.405.245.175
Definition English:   One of the four types of brain waves seen on EEG characterized by a high amplitude and a frequency of 4 Hz and below. They are considered the "deep sleep waves" observed during sleep in dreamless states, infancy, and in some brain disorders. 
Indexing Annotation English:   in EEG
History Note English:   91(75); was see under ELECTROENCEPHALOGRAPHY 1975-90 
Allowable Qualifiers English:  
adverse effects classification
contraindications drug effects
economics ethics
history instrumentation
mortality methods
nursing psychology
radiation effects statistics & numerical data
standards trends
utilization veterinary
Record Number:   3712 
Unique Identifier:   D003700 

Occurrence in VHL:
 

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