Table 4.

Correlation coefficients for intersession difference in FA values for the genu and corpus callosum and measurements of sustained attention and reaction time.

	Hit rate nicotine patch	Hit rate placebo patch	ΔHit rate	Reaction time nicotine patch	Reaction time placebo patch	ΔReaction time
ΔFAGenu (N = 38)	0.44 (0.006)**	0.29 (0.08)	0.17 (0.30)	−0.24 (0.15)	−0.22 (0.20)	0.35 (0.03)*

Δ: Difference between nicotine and placebo patch sessions

^*Nominally significant.

^**Only the correlation with hit rate during the nicotine patch session was considered statistically significant after correction for six comparisons.