Averages for spontaneous adenosine release.

Legend: Data from the caudate-putamen and prefrontal cortex. Concentration was significantly different between the two regions (n = 588 transients in 30 rats and 804 transients in 29 rats, t-test, p = 0.0238, respectively). The duration of transient adenosine was not different between the caudate and prefrontal cortex (n = 30 and 29 rats, t-test, p = 0.0826). * Inter-event times, or the time between consecutive transients have significantly different underlying distributions between the two regions (n = 30 and 29 rats, KS test, p = 0.0338).