Table 1.

ANOVA summary statistics for stress response measures that show significant stressor effects.

Measure	Stressor level		Stressor type		Stressor level × stressor type
	F	${\mathrm{\eta }}_{\mathrm{p}}^{\mathrm{2}}$	F	${\mathrm{\eta }}_{\mathrm{p}}^{\mathrm{2}}$	F	${\mathrm{\eta }}_{\mathrm{p}}^{\mathrm{2}}$
Subjective scales
Task engagement	1.35	0.020	3.48	0.049	16.96∗∗	0.202
Distress	34.46∗∗	0.340	80.33∗∗	0.545	28.10∗∗	0.295
Workload	27.95∗∗	0.294	93.51∗∗	0.583	28.18∗∗	0.296
Physiological measures
ECG: HRV	12.90∗∗	0.163	1.29	0.019	0.82	0.012
TCD: CBFV1	6.65∗∗	0.097	0.90	0.014	5.51∗	0.082
EEG: Theta	5.76∗	0.081	0.53	0.008	1.82	0.027
EEG: Alpha	4.69∗	0.067	1.49	0.022	3.82	0.056
EEG: Beta	16.55∗∗	0.203	0.08	0.001	1.04	0.016
EEG: Gamma	18.44∗∗	0.221	1.41	0.021	0.31	0.005
Performance measures
Command ratio	78.46∗∗	0.539	97.32∗∗	0.592	85.49∗∗	0.561
Search accuracy	6.41∗	0.087	1.54	0.023	0.13	0.002
Waypoints added	12.02∗∗	0.152	5.89∗	0.081	8.75∗∗	0.116

^∗p < 0.05, ^∗∗p < 0.01. ¹Analysis also included hemisphere factor.