Racial Differences in the Human Endogenous Circadian Period

Open Access

Peer-reviewed

Research Article

Mark R. Smith,

Affiliation Biological Rhythms Research Laboratory, Department of Behavioral Sciences, Rush University Medical Center, Chicago, Illinois, United States of America
⨯
Helen J. Burgess,

Affiliation Biological Rhythms Research Laboratory, Department of Behavioral Sciences, Rush University Medical Center, Chicago, Illinois, United States of America
⨯
Louis F. Fogg,

Affiliation Biological Rhythms Research Laboratory, Department of Behavioral Sciences, Rush University Medical Center, Chicago, Illinois, United States of America
⨯
Charmane I. Eastman

* E-mail: ceastman@rush.edu

Affiliation Biological Rhythms Research Laboratory, Department of Behavioral Sciences, Rush University Medical Center, Chicago, Illinois, United States of America
⨯

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African American people
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Chronobiology
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Light pulses
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Circadian rhythms
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Sleep
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Melatonin
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Phase determination
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Latitude
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