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. Author manuscript; available in PMC: 2010 Apr 6.
Published in final edited form as: Eur J Neurosci. 2007 Mar;25(5):1557–1567. doi: 10.1111/j.1460-9568.2007.05402.x

Table 2.

Temporal distribution of responding in Phase 1

Group Activity Food cup
first 5 s second 5 s Ratio first 5 s second 5 s Ratio
VTA-X 99.5 ± 18.3 64.7 ± 20.5 0.65 ± 0.03 48.7 ± 4.1 72.8 ± 4.9 0.40 ± 0.03
VTA-U 94.1 ± 11.9 74.7 ± 13.7 0.59 ± 0.05 41.6 ± 6.2 73.9 ± 5.9 0.35 ± 0.03
SNC-X 63.9 ± 9.4 53.1 ± 8.7 0.58 ± 0.05 57.3 ± 5.0 80.5 ± 5.7 0.41 ± 0.01
SNC-U 122.1 ± 9.8 89.9 ± 13.9 0.60 ± 0.03 48.7 ± 4.7 77.9 ± 3.9 0.38 ± 0.01
CTL 100.4 ± 12.3 75.4 ± 14.2 0.59 ± 0.03 41.0 ± 4.1 72.4 ± 5.4 0.36 ± 0.01

Note. Entries for the activity measure are mean ± sem counts/min; entries for the food cup measure are mean ± sem percentage of the 5-s interval spent in the food cup. Ratios for each measure are first 5-s response / (first 5-s response + second 5-s response). The group labels are defined in the text.