Post-hoc t -tests on N1 latencies for each sound location (LC: 113.3 ms; LE: 108.7 ms; RC: 110.1 ms; RE: 110.6 ms) indicated longer latencies to left-central than to left-eccentric sounds ( t [17] = 3.73, p = 0.001; Bonferroni-corrected values), while further differences did not reach statistical significance (all p >0.008).
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When and where of auditory spatial processing in cortex: a novel approach using electrotomography.
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approaching significancep = 0.038
For the P2 deflection, the ANOVA revealed approaching significance for an effect of “Eccentricity” ( F [1] , [17] = 5.06, p = 0.038, η p 2 = 0.23) at the chosen alpha level (Bonferroni-corrected for two ANOVAs: α = 0.05/2 = 0.025), suggesting a tendency of greater activation by central, than eccentric, sound.
No such contrasts approached significance for the N1 response.