2.3.4. Statistical analysis
For the puretone paradigm, the amplitudes and latencies of the
P50, N1, P2, and N2 were examined in a 1-way (age: young vs. old)
analysis of variance (ANOVA). For the auditory speech paradigm,
the amplitudes and latencies of the 4 major auditory ERPs (P50, N1,
P2, and N2) were examined individually in a 2 (age: young vs. old)
2 (condition: standard vs. deviant) ANOVA. An aMMN and P3a to
deviants were examined separately in a 1-way (age: young vs. old)
ANOVA.