Table 6.

Descriptive statistics for morning, afternoon, and evening epochs.

Epoch		N	Minimum	Maximum	Mean	Standard Deviation
Morning
	Reaction time (seconds)	15	0.34846	0.60071	0.41786a	0.07409
	Mental Fatigue Scale result	15	24	84	40.93	17.123
	Total number of timely reactions	15	12	15	14.53	0.834
	Total number of correct Spatial Span sequences	15	4	5	4.87	0.352
	Total number of correct Mental Arithmetic answers	15	15	28	23.47	3.461
	Longest Spatial Score sequence reached	15	4	7	5.67	0.9
Afternoon
	Reaction time (seconds)	45	0.2950	0.65199	0.386a	0.05733
	Mental Fatigue Scale result	45	14	78	30.2	12.836
	Total number of timely reactions	45	12	15	13.89	0.959
	Total number of correct Spatial Span sequences	45	4	6	4.89	0.573
	Total number of correct Mental Arithmetic answers	45	14	31	24.51	3.501
	Longest Spatial Score sequence reached	45	3	9	5.73	1.372
Evening
	Reaction time (seconds)	21	0.3069	0.7600	0.37417a	0.1443
	Mental Fatigue Scale result	21	14	53	30.81	10.731
	Total number of timely reactions	21	12	15	14	0.894
	Total number of correct Spatial Span sequences	21	4	6	4.95	0.590
	Total number of correct Mental Arithmetic answers	21	19	31	24.57	3.682
	Longest Spatial Score sequence reached	21	3	9	5.76	1.411

^aDenotes the median reaction time