A behavioral role for feature detection by sensory bursts.
Brief episodes of high-frequency firing of sensory neurons, or bursts, occur in many systems, including mammalian auditory and visual systems, and are believed to signal the occurrence of particularly important stimulus features, i.e., to function as feature detectors. However, the behavioral relevance of sensory bursts has not been established in any system. Here, we show that bursts in an identified auditory interneuron of crickets reliably signal salient stimulus features and reliably predict behavioral responses. Our results thus demonstrate the close link between sensory bursts and behavior.
Marsat
Gary
G
Department of Biology, McGill University, Montreal, Quebec, Canada H3A 1B1.
Pollack
Gerald S
GS
D000161:Acoustic Stimulation / Q000379:methods; D000200:Action Potentials / Q000502:physiology*; D000818:Animals; D005260:Female; D005426:Flight, Animal / Q000502:physiology*; D006135:Gryllidae; D009475:Neurons, Afferent / Q000502:physiology*