ABSTRACT

For CA experiments on single epithelial sensory neurons a number of stimuli were selected from previously published EOO papers (amino acids: Caprio and Byrd, 1984; pheromones: Sorensen et al., 1990). Extracellular recordings from single sensory neurons, unlike recordings from bulbar relay neurons, are much more difficult for two reasons: the diameter of sensory neurons is extremely small ( < 2 Jlm) and even the extremely low laminary flow of tap-water or stimulus solution (-1 ml·min-1) obviously results in minor turbulences that limit the recording time from single neurons. We therefore made epithelial CA experiments with amino acids rather systematically and with pheromones more by chance (fable 5.1).