Skip to main content
. Author manuscript; available in PMC: 2015 Jun 1.
Published in final edited form as: Brain Res Bull. 2014 Jan 7;0:25–35. doi: 10.1016/j.brainresbull.2013.12.012

Figure 1.

Figure 1

Enhancement of working memory in a spontaneous alternation task by L- and D-glucose, an artificial and natural sugar, respectively. In rats, a full dose-response curve for both sugars revealed optimal enhancement of memory at 3000 and 250 mg/kg for L- and D-glucose. Left graph: Enhancement of alternation scores with both sugars in rats that had undergone sham surgery for vagotomy. Right graph: Vagotomy blocked the enhancement of memory produced by L-glucose but did not block enhancement produced by the natural D-glucose. (GLU = glucose) (From Talley et al., 2002.)