Table 2.

Statistical comparison of mean pupil diameter across arousal states (z-units)

	Rest	Whisk	Stim	NREM	REM
Rest		***2.1 × 10–22	***1.9 × 10–11	***6.2 × 10–19	***2.3 × 10–27
Whisk	***2.1 × 10–22		***3.1 × 10–6	***2.3 × 10–43	***2.2 × 10–49
Stim	***1.9 × 10–11	***3.1 × 10–6		***1.2 × 10–34	***1.3 × 10–41
NREM	***6.2 × 10–19	***2.3 × 10–43	***1.2 × 10–34		**0.00019
REM	***2.3 × 10–27	***2.2 × 10–49	***1.3 × 10–41	**0.00019

Bonferroni-corrected significance levels (10),

*α < 0.005,

**α < 0.001,

***α < 0.0001.