JEB -- Dekker et al. 208 (15): 2963 Figure IG4

(Downloading may take up to 30 seconds.
If the slide opens in your browser, select File -> Save As to save it.)
Click on image to view larger version.

Fig. 4. Activation by skin odour and CO₂ (A) skin odour series: 100% skin odour (N=64), 20% skin odour (N=67), 4% skin odour (N=70), `hand' (N=64), clean air (N=59); (B) CO₂ series: 1% CO₂ (N=40), 0.3% CO₂ (N=40), 0.1% CO₂ (N=55), 0.05% CO₂ (N=55), `hand' (N=46). The shape parameter ${alpha}$ was in all cases <1 (between 0.5 and 0.6), which implies a higher activation rate at the beginning of the experiment.