. Author manuscript; available in PMC: 2016 Nov 27.

Published in final edited form as: J Sleep Res. 2015 Mar 13;24(4):364–371. doi: 10.1111/jsr.12291

Table 1.

Mixed Model

	HA	CP	HA × CP
Measure	F (9,45)	F (5,25)	F (45,225)
STROOP:
Congruent MEDRTC	5.27^****	11.53^*****	1.02
Neutral MEDRTC	5.52^****	17.03^*****	1.11
Incongruent MEDRTC	6.28^****	30.34^*****	1.37 (0.07)
Inhibitory Control	1.48	2.98^*	0.88
SPATIAL:
Overall CT	6.88^*****	1.20	1.50^*
Target Present CT	4.67^***	1.44	1.10
Target Absent CT	6.12^****	1.45	1.52^*
Missed Targets (%)	1.76	0.21	1.06
CONJ:
Overall CT	4.98^***	14.41^*****	1.75^**
Target Present CT	5.58^****	12.50^*****	1.96^***
Target Absent CT	4.09^***	12.66^*****	1.37 (0.07)
Missed Targets (%)	3.73^**	4.74^**	1.93^***
ADD (# correct)	4.16^***	10.94^*****	0.93
DSST (# correct)	9.15^*****	12.72^*****	2.10^***
PVT (1/MEDRT)	5.28^****	18.76^*****	2.39^****
KSS Score	10.48^*****	7.67^***	2.35^****

P < 0.05

^**

P < 0.01

^***

P < 0.001

^****

P < 0.0001

^*****

P < 0.0001.

Values in parentheses show non-significant trends (P>0.05).

Analysis of cognitive measures by hours awake (HA), circadian phase (CP), and the interaction (HA×CP). STROOP, Stroop Color Word Task; CONJ, Conjunction Visual Search Task; SPATIAL, Spatial–Configuration Visual Search Task; ADD, mathematical addition test; DSST, Digit Symbol Substitution Task; PVT, Psychomotor Vigilance Task; KSS, Karolinska Sleepiness Scale; MEDRTC, Median Reaction Time Correct; CT, Cognitive Throughput; MEDRT, Median Reaction Time.