Figure 2

Changes in interval between peak V and I in brainstem auditory-evoked EEG potentials plotted against changes in rectal core temperature. Correlation between changes in interpeak interval (PV-PI) and gradual increase in rectal core temperature from baseline/no radiation (black horizontal dotted line, expressed as 0.0) to the maximal tolerable rectal core temperature/prolonged simulated sunlight exposure. Black dots with error bars (verification session, n = 5, R² = 0.98 expressed as black dashed line, P = 0.001), blue squares with error bars (lower-body radiation session, n = 8) and red triangles with error bars (head radiation session, n = 8). Values are mean and error bars (horizontal and vertical) represent SEM.