Abstract:
:Human EEG activity in the conventional frequency range of 1-30 c/s is a well-established entity. This paper illustrates a method for utilizing a conventional EEG frequency analyser to demonstrate a considerably lower frequency, circadian (about 24-h) rhythm in the EEGs of a group of human volunteers. This periodicity persists even in a group of totally sleep deprived (50 h) subjects. Plasma cortisol levels from blood samples drawn simultaneously with the EEG data also demonstrate circadian periodicity, and EEG-cortisol temporal (phase) relationships are apparent by inspection of the data collected, but could not be confirmed statistically. Evidence for the statistical significance of circadian organization of the EEGs and adrenal cortices of healthy men is provided by a phase testing technique developed for this study and discussed further in the appendix. This technique is readily applicable to further studies of periodicity in physiological functions.
journal_name
J Psychiatr Resjournal_title
Journal of psychiatric researchauthors
Frank G,Halberg F,Harner R,Matthews J,Johnson E,Gravem H,Andrus Vdoi
10.1016/0022-3956(66)90020-3subject
Has Abstractpub_date
1966-11-01 00:00:00pages
73-86issue
2eissn
0022-3956issn
1879-1379journal_volume
4pub_type
杂志文章abstract::Identifying the profile of risky behaviors among drivers is central to propose effective interventions. Due to the multidimensional and overlapping aspects of risky driving behaviors, cluster analysis can provide additional insights in order to identify specific subgroups of risk. This study aimed to identify clusters...
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journal_title:Journal of psychiatric research
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journal_title:Journal of psychiatric research
pub_type: 杂志文章
doi:10.1016/j.jpsychires.2018.10.003
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pub_type: 临床试验,杂志文章
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pub_type: 杂志文章,多中心研究,随机对照试验
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pub_type: 杂志文章
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更新日期:2013-06-01 00:00:00
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pub_type: 杂志文章
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