Table 2.

Stepwise comparison of pupil- and/or REM-based models of neural activity

Sleep	Pupil (Baseline-Gain)	Sleep and Pupil
−0.2§	−0.03§	−0.04§	Null
	−0.01‡	−0.02§	Sleep
		−0.006†	Pupil (Baseline-Gain)

Stepwise comparison of accuracy of pupil and/or sleep-state based models of neural activity (see methods) applied to all vocalization data including sleep episodes (n = 47 neurons). Values are median accuracy for population of neurons with significant fit for any model (n = 44/47 neurons). Bold text indicates the difference is significant at alpha level 0.05 with Bonferroni correction for multiple comparisons.

^†P < 0.01;

^‡P < 0.001;

^§P < 0.0001 (sign test).