FIGURE 5.

Ten-day ambulatory recordings of wrist temperature rhythm (red) plotted with reaction time (A, blue), digit symbol substitution test (DSST) (B, green), grip strength (C, brown), sprint time (D, green), mood (higher values, more depressive mood) (E, turquoise). Gray areas indicate Stage 2 (constant dim light). Previous and subsequent days correspond to Stage 1 (self-selected light/dark cycle) and Stage 3 (light/dark cycle with early wake up), respectively. Black bulb indicates darkness, yellow bulb indicates bright light (Stage 1, self-selected light/dark cycle), gray bulb indicates dim light (Stage 2) and alarm clock indicates light/dark cycle with early wake up (Stage 3).