Table 2.

Percentage of neurons exhibiting significant effects (three-way ANOVA, p < 0.05) during the trace-conditioning and/or operant tasksa

Factor% (count) significant effects (p < 0.05, n = 227) in the trace-conditioning tasks, operant tasks (χ2-test)
100–500 ms500–900 ms900–1300 ms
Reward41.3% (93), 44.2% (100), p = 0.531735.8% (81), 31.4% (71), p = 0.319430.1% (68), 35.0% (79), p = 0.2694
Space35.6% (80), 39.4% (89), p = 0.401418.1% (41), 23.9% (54), p = 0.133412.4% (28), 21.2% (48), p = 0.0119
Block48.9% (110), 58.6% (130), p = 0.040442.0% (95), 59.0% (131), p = 0.000345.6% (103), 58.1% (129), p = 0.0079
Reward × space15.6% (35), 18.6% (42), p = 0.39284.9% (11), 10.2% (23), p = 0.03244.4% (10), 10.6% (24), p = 0.0125
Reward × block36.4% (82), 38.7% (86), p = 0.616614.6% (33), 18.5% (41), p = 0.27055.8% (13), 14.0% (31), p = 0.0035
Space × block13.8% (31), 19.8% (44), p = 0.08749.7% (22), 13.1% (29), p = 0.26745.3% (12), 9.9% (22), p = 0.0660
Three-way22.7% (51), 24.8% (55), p = 0.60037.5% (17), 8.1% (18), p = 0.81734.9% (11), 10.8% (24), p = 0.0191
  • aData from the space-relevant and space-irrelevant trace tasks were combined (one data point per neuron), and we included only neurons that were recorded during one or both of the trace-conditioning tasks and during the operant task (n = 227). The p values indicate the statistical significance of a comparison between the proportions of significantly selective neurons across tasks (χ2 test).