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. Author manuscript; available in PMC: 2013 Mar 19.
Published in final edited form as: J Neurosci. 2012 Sep 19;32(38):13137–13144. doi: 10.1523/JNEUROSCI.2393-12.2012

Figure 2.

Figure 2

Outcome selectivity in ABL is reduced in aged animals. A. Baseline firing as computed during 1 second before nose poke. Baseline firing was reduced in aged ABL (ttest; p < 0.05). B. The number of reward-responsive neurons in ABL (higher firing 1 s after reward compared to baseline; ttest; p < 0.05) was not significantly different between aged and young rats (chi-square = 3.7; p = 0.05). C. Height of each bar indicates the percentage of neurons that showed a significant effect of delay or size in an ANOVA during the 1 s after reward delivery (p < 0.05). Asterisks reflect significant difference between counts of neurons in each group as measured by chi-square (p < 0.05).