Table 1.

NINL subscores in all sessions

	NC	NI	NL
Session 1	6.59 ± 0.27	6.59 ± 0.37	6.40 ± 0.39
Session 2	6.63 ± 0.25	5.56 ± 0.53	5.52 ± 0.52
Session 3	6.30 ± 0.44	5.59 ± 0.50	5.78 ± 0.47
Session 4	5.11 ± 0.48*	4.89 ± 0.57*	3.70 ± 0.48**

Data presented as mean ± SEM

*P < 0.01 significantly less than session 1; **P < 0.001 significantly less than session 1