Table 1. Average (± SD) absolute values of the 3 pre-tests.

	Mean Force (N)	Biceps EMG (mV)	Triceps EMG (mV)
Control	246 (30)	.65 (.22)	.11 (.08)
Unknown	236 (25)	.58 (.29)	.14 (.05)
Deception	237 (31)	.61 (.31)	.12 (.01)