TABLE 5.

Repeated-measures multivariate ANOVA (RM-MANOVA) testing for effects of current plasma docosahexaenoic acid (DHA) concentrations on event-related potential variables¹

	Low current DHA concentration (n = 75)		High current DHA concentration (n = 76)
Component	New	Old	New	Old	P for DHA
FN400 latency (ms)	399.7 ± 49.8	401.0 ± 45.6	387.5 ± 43.2	394.6 ± 40.9	0.11
FN400 amplitude (μV)	−10.2 ± 6.2	−7.7 ± 6.6	−11.8 ± 6.7	−9.2 ± 6.7	0.04
LPC amplitude (μV)	11.3 ± 7.0	14.6 ± 7.2	12.1 ± 6.7	15.4 ± 7.0	0.34

¹All values are means ± SDs for latencies and amplitudes for FN400 [300–500 ms, midline frontal electrode (Fz)] and the late positive component [LPC; 500–800 ms, midline parietal electrode (Pz)]. F-ratio P values are from RM-MANOVA with condition (old or new) as the within-subject factor and the DHA group (split at the median) as the between-subjects factor. No condition × DHA interaction effect was significant (all P > 0.20). Covariates included in the RM-MANOVA models were the same as listed in Table 4.