Corollary discharge and efference copy mechanisms in schizophrenia and controls: The N1 and P2 evoked potential components differentially react to self-initiated tones in schizophrenia.

5# Answer: Initially, we considered averaging the selected electrodes; however, the statistical analysis indicated that electrodes were highly significant in the MANOVA for both N1 and P2, neither influenced by other relevant effects nor involved in any interaction effects with groups or conditions.

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In addition, a negative correlation between illness duration and cognition was also observed that just failed significance.

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The second aim, analysis of the RP data in the two conditions (“Generate Tone” and “Button Press”) and groups (“Patients” and “Controls”) revealed a marginally significant interaction effect.

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