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Devaluation of sucrose 1 M.

By Ainara Ayestaran (360372), Martin Giurfa (26970) and María Gabriela de Brito Sanchez (360373)


<p>The graph shows the performance (percentage of proboscis extension responses or PER) during (<b>a</b>) an odor-sucrose association in which the response to the odor (conditioned stimulus or CS) was quantified, and during (<b>b,c</b>) a test phase following a devaluation phase in which responses to the sugar (US; see <b>b</b>) and to the odor (CS see <b>c</b>) were quantified in paired and unpaired groups of bees experiencing or not an association between sugar and either distilled water, quinine 10 mM, LiCl 140 mM or amygdaline 1 mM (319 bees in total). (<b>a</b>) All bees learned the odor-fructose association. The graph shows the pooled acquisition performance of all eight groups of bees. (<b>b</b>) Ingestion of quinine, LiCl and amygdaline did not diminish US responsiveness with respect to a water control. Bees responded maximally to sucrose (100% PER). Responses of paired and unpaired groups were similar. (<b>c</b>) Ingestion of quinine, LiCl and amygdaline decreased CS responsiveness with respect of a water control. Responses to a novel odor remained low and equivalent in all groups. Different letters indicate significant between-group differences.</p

Topics: Neuroscience, sucrose
Year: 2013
DOI identifier: 10.1371/journal.pone.0015000.g006
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Provided by: FigShare
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