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Chunk #40 — DISCUSSION — P160 Waveforms Amplitude and Latency

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ERP and RT delays in long-term abstinent alcoholics in processing of emotional facial expressions during gender and emotion categorization tasks.
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The frontally prominent positive peak around 160ms also was consistent with Eimer & Holmes (2002 Eimer & Holmes (2007), but not Maurage et al.(2008a, 2008c), who used morphed facial stimuli and a different (oddball task) paradigm, finding P1 amplitude at T6 and minimal for Oz, partly consistent with our results. The finding that P160 latency was later in men compared to women follows along the lines of similar studies in relation to gender differences in ERP’s elicited by faces (Proverbio et al., 2006, Suyama et al., 2008), though these studies found increased amplitude in women, which we did not replicate.