Table 1. Number of subjects showing habituation, sensitization or no change in each effector system from trial 1 to trial 2.

	Habituation	Sensitization	No Change	Total
GSR	40	6	1	47
FPV	21	20	2	43
MF	18	21	2	41
HR	14	28	3	45

Table 1 shows the number of subjects showing habituation, sensitization or no change, from tone-alone trial 1 to trial 2, in all four effector systems. As shown, there is no consistency between the number of subjects who initially habituated and sensitized in the GSR, and the number of subjects who initially habituated and sensitized in each of the other effector systems. Occasionally, due to technical problems, data were not available for a given subject on the first or second trial in a given effector system leading to differences in the total number of subjects shown for each effector system.