2 id="details">Details<a class="anchor" aria-label="anchor" href="#details"></a></h2>
    <p>These data are from the study described in Belenky et al.
  (2003), for the most sleep-deprived group (3 hours time-in-bed)
  and for the first 10 days of the study, up to the recovery period.
  The original study analyzed speed (1/(reaction time)) and treated
  day as a categorical rather than a continuous predictor.</p>
    </div>
    <div class="section level2">
    <h2 id="references">References<a class="anchor"