Table 3.

Time delay between RABP and RBF

		Time delay
Group	n	LF range (s)	HF range (s)
T-Ctrl	12	14·3 ± 3·9	1·7 ± 0·2
T-Nife	5	11·2 ± 3·0	0·5 ± 1·1 *
T-Hexa	7	15·9 ± 2·5	2·0 ± 0·2
T-Furo-I	7	-1·1 ± 3·4 *	2·7 ± 0·1 *
T-Furo-II	4	-1·6 ± 2·4 *	1·4 ± 0·1

The time delay, calculated from the phase of the transfer function, was more or less constant in the low and high frequency ranges (0·0034-0·01 Hz and 0·03-0·08 Hz, respectively) (Fig. 4C). For each experiment, all delays within each of these ranges were averaged, the given values are the group means of these average values.

^*Significantly different from T-Ctrl (P < 0·05).