QUICK SEARCH:   [advanced] Author: Keyword(s):
Home     Help     Feedback     Subscriptions     Archive     Search     Table of Contents

This Article Summary Full Text Full Text (PDF) Alert me when this article is cited Alert me if a correction is posted Services Email this article to a friend Similar articles in this journal Similar articles in PubMed Alert me to new issues of the journal Download to citation manager Citing Articles Citing Articles via HighWire Citing Articles via Google Scholar Google Scholar Articles by Daly, K. C. Articles by Smith, B. H. Search for Related Content PubMed PubMed Citation Articles by Daly, K. C. Articles by Smith, B. H.

The generalization of an olfactory-based conditioned response reveals unique but overlapping odour representations in the moth Manduca sexta

Kevin C. Daly^*, Sathees Chandra, Michelle L. Durtschi and Brian H. Smith

Department of Entomology, Ohio State University, Columbus, OH 43210-1220, USA

View larger version (15K): [in a new window]   Fig. 1. Acquisition curves displayed as the probability P of moths responding to odour presentation, prior to sucrose presentation, for the three odours used in the conditioning phase of experiment 1: 1-hexanol (N=80) 2-hexanone (N=80) 1-decanol (N=80). Note the clear and consistent pattern across all three odourants of acquisition that peaks between trials 3 and 5 then begins to decrease on the sixth trial.

View larger version (20K): [in a new window]   Fig. 2. Response probabilities P for the 2h post-test of generalized response to the conditioning odour (black, CS) and to test odours, color-coded by functional group; gray, alcohols; white, ketones; striped, cyclohexanone. Moths were conditioned to either 1-hexanol (A; N=80), 2-hexanone (B; N=80) or 1-decanol (C; N=80).

View larger version (24K): [in a new window]   Fig. 3. Acquisition curves and test-phase response probabilities P by odour, for the differential conditioning experiments. (A,B) Differential conditioning of 1-heptanol and 1-hexanol (N=40); (C,D) 1-hexanol and 1-octanol (N=50); (E,F) 1-hexanol with 2-octanone (N=60). R, reinforced and N, non-reinforced odours in the acquisition phase. Lowercase letters above values denote results of one-tailed t-tests between means (P<0.05); like letters indicate non-significance. Note that data from the third group (E,F) were analyzed using GLM, not t-tests. Differences in N reflect the different numbers of test odourants used in each group (N=10 for each number of odours).