Revealing oft-cited but unpublished papers of Colin Pittendrigh and coworkers

Michael C. Tackenberg, Carl H. Johnson*, Terry L. Page, Serge Daan

*Corresponding author for this work

Research output: Contribution to journalArticleAcademicpeer-review

2 Citations (Scopus)
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Among the scientific resources that Colin Pittendrigh passed on to his colleagues after his death in 1996 were two unpublished papers. These manuscripts, developed first in the mid-1960s and continually updated and refined through the late 1970s, centered on the development and experimental exploration of a model of circadian entrainment combining aspects of the well-known parametric (continuous) and nonparametric (discrete) models of entrainment. These texts reveal the experimental work surrounding Pittendrigh's determination of the limits of entrainment and the explanation of the bistability phenomenon. These manuscripts are being made publicly available in their final format (February 1978) as supplementary material to this introduction.

Original languageEnglish
Pages (from-to)291-294
Number of pages4
JournalJournal of Biological Rhythms
Issue number4
Publication statusPublished - Aug-2017


  • Pittendrigh
  • photoperiodism
  • two-pulse entrainment
  • skeleton photoperiods
  • mechanisms of entrainment
  • phase response curves
  • phase transition curves

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