Figure 7: Hypothetical contributions of serial and stereo olfactory sampling.
From: Stereo and serial sniffing guide navigation to an odour source in a mammal
Circles represent the location of sniffs and lines represent movement of the nose. Plus and minus in the large circles represent a comparison with the previous sniff during serial sampling. Small circles represent the contribution of bilateral cues close to the odour source where the gradient is steep. Lower left represents a hypothetical concentration gradient (drawn from data of Louis et al.8 for Fourier transform infrared spectroscopy after 2 min of diffusion).
