Circadian rhythms and animal behavior research: A follow-up survey

An updated survey of animal behavior research articles published between 1981 and 1986 was conducted to assess the frequency with which potentially important information about circadian rhythms was specified. Although the percentage of sampled articles that reported circadian details was greater in this survey than in a previous one, research reports are still deficient in providing enough information for researchers to undertake reasonable replications. Furthermore, the practice of conducting behavioral research on animals during their normal sleep, or inactive, phase was found to be characteristic of reports published during the time period covered by the survey.