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. Author manuscript; available in PMC: 2011 Jul 28.
Published in final edited form as: Dev Neurobiol. 2010 Aug;70(9):636–648. doi: 10.1002/dneu.20801

Figure 3.

Figure 3

Developmental emergence of AM detection threshold is not due to differences in strategies used or in the number of trials performed per day. A. Average False Alarm rate across AM depth was similar for each of the age groups (Early Juveniles, blue; Late Juveniles, red; Adults, black).

B. Average number of trials performed by each animal during initial testing was compared to the naïve AM detection threshold. Early Juveniles (blue circles) displayed the greatest variability in threshold for a given number of trials/day. The gray box on the left contains animals that fall into the Adult range of trials/day. The bar graph (arrow) displays the average naïve threshold of animals within the corresponding gray box (those animals that performed a similar number of average daily trials). The average detection threshold of both Early Juveniles and Late Juveniles remained poorer than those of Adults after controlling for average daily trials (*, p<0.05).