Figure 1.

Interval timing is precise and scalar. Normalized mean lever-press response rate in peak-interval experiments with rats trained with a criterion time of 30s (A), respectively, 90s (C; re-drawn from [13]). When normalized by the maximum response rate and by the criterion duration on the horizontal scale, response functions for the two criteria overlap (B).

Oprisan and Buhusi BMC Neuroscience 2013 14:84   doi:10.1186/1471-2202-14-84
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