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  • Caroline M. Nievergelt, Daniel F Kripke, +7 authors John R. Kelsoe
  • Biology, Medicine
  • American journal of medical genetics. Part B…
  • 2006 (First Publication: 5 April 2006)
  • Bipolar affective disorder (BPAD) is suspected to arise in part from malfunctions of the circadian system, a system that enables adaptation to a daily and seasonally cycling environment. GeneticContinue Reading
  • Girardin Jean-Louis, Daniel F Kripke, William J. Mason, Jeffrey A. Elliott, Shawn D. Youngstedt
  • Psychology, Medicine
  • Journal of Neuroscience Methods
  • 2001 (First Publication: 1 February 2001)
  • Progress in transducer design and empirical characterization of wrist movement has led to diverse wrist activity monitors, each with its unique features and modality of operation. This study comparedContinue Reading
  • Michael A. Grandner, Daniel F Kripke, In-Young Yoon, Shawn D. Youngstedt
  • Psychology, Medicine
  • Sleep and biological rhythms
  • 2006 (First Publication: 1 June 2006)
  • The objective of this study was to investigate the reliability and validity of the Pittsburgh Sleep Quality Index (PSQI) in a non-clinical sample consisting of younger and older adults. There hasContinue Reading