Odour-plume dynamics influence the brain's olfactory code.

Shows that with naturally intermittent odor stimulation, spike patterns recorded from moth antennal-lobe output neurons varied predictably with the fine-scale temporal dynamics and intensity of the odor. How this finding supports the hypothesis the olfactory circuits compensate for contextual variations in the stimulus pattern with high temporal precision; Observation that the timing of output neuron activity is constantly modulated to reflect ongoing changes in stimulus intensity and dynamics that occur on a millisecond timescale.