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. Author manuscript; available in PMC: 2011 Jul 1.
Published in final edited form as: Neurobiol Learn Mem. 2010 Apr 18;94(1):100–106. doi: 10.1016/j.nlm.2010.04.006

Figure 2.

Figure 2

(A) Individual repartition of animals according to the different stages. Young and aged lemurs were tested in the procedure with or without symbols. The numbers in the pie charts indicated the numbers of animals reaching the different stages. Percentages over the whole population are shown within parentheses. No statistical significance was measured in repartitions for age and symbol (p > 0.05, Fisher’s exact test). Note that p = 0.08 for symbols between the two young groups. (B) Number of sessions to reach the inclusion criterion. The number of animals is indicated within the columns. ANOVA, F < 1 for age, F(1,12) = 1.99, p > 0.05 for symbol, and F < 1 for the age x symbol interaction.