Table 1.

The number of time cells identified in the control analyses and the overlap between time cells identified in the main analysis and the control analyses

Control Analysis	Number of time cells identified (% of overlap with time cells from the main analysis)	Concern
Likelihood ratio test	138 (84.7%)	Identification of time cells is method dependent
Stepwise GLM on ISI periods only	106 (76.4%)	Identification of time cells is dependent on image information
Stepwise GLM excluding first ISI	65 (81.5%)	Identification of time cells is dependent on the probe events
Stepwise GLM with trials defined with respect to sequence onset	69 (30.4%)	Identification of time cells is dependent on the temporal interval
N-way ANOVA	101(88.1%)	Identification of time cells is method dependent
Stepwise GLM excluding the quadratic time term	114 (88.7%)	Identification of ramping cells