Abstract
Behavioural and electrophysiological taste responses in the blowfly ( Calliphora vicina ) are measured in successive experiments, using the same flies twice. Inter-individual variations in behaviour are at least partly due to differences in the functioning of the tarsal taste hairs; flies with low behavioural threshold values have taste hairs firing with higher rates. The percentage of taste hairs responding with spike trains is not important. Behavioural responses are predominantly influenced by the ‘best’ firing hair. The most effective of the parameters describing spike trains seems to be ft∞ , the firing rate after an ‘infinite’ length of stimulation time.

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