Table 1.

Baseline performance of future contingent and noncontingent subjects on the five-choice serial reaction time task

Contingent subjectsNoncontingent subjectsGroupDay
Correct responses77  ± 178  ± 1F(1,18) = 0.03;p = 0.88F(6,108) = 1.45;p = 0.20
Choice accuracy (%)86.9  ± 1.287  ± 0.4F(1,18) = 0.01;p = 0.98F(6,108) = 0.63;p = 0.71
Omissions12  ± 112  ± 1F(1,18) = 0.01;p = 0.96F(6,108) = 2.25;p = 0.06
Correct latencies (csec)51.2  ± 0.751.8  ± 0.6F(1,18) = 0.10;p = 0.76F(6,108) = 0.76;p = 0.60
ITI magazine entries76  ± 377  ± 3F(1,18) = 0.01;p = 0.97F(6,108) = 0.21;p = 0.97
Premature responses9  ± 0.59  ± 0.5F(1,18) = 0.03;p = 0.87F(6,108) = 0.68;p = 0.67
  • The data are responses (rounded up to the nearest whole number), choice accuracy (percentage of correct responses relative to total correct and incorrect responses), and response latencies (csec), averaged over seven daily 30 min sessions (n = 10). ANOVA results for between (group)- and within (day)-subject effects are shown for each behavioral variable.