Figure 2. Time course of changes in regional cortical blood flow (rCBF, A), respiratory rate (RR) and heart rate (HR) (B), and BAT temperature (left trace, C) during arousal from hibernation in six movement-restricted hamsters.

The profiles have been presented so that zero time on the x-axes coincides with rectal temperature reaching 15 °C. Periods in which the rCBF trace is absent from A are when all hamsters were moving and rCBF recordings were movement artefacts. All hamsters were in the stereotaxic frame until time =−10 min. Data are presented as means ±s.e.m.