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Influence of colors in distractor videos on the recording of cortical auditory evoked potentials

Jul 2026 · International Symposium on Cooperative Database Systems for Advanced Applications · Vol 38 · 0 citations · 36 references
Medicine

Abstract

ABSTRACT Purpose To compare the morphological differences in CAEP obtained with black-and-white versus colored distractor videos, and to verify whether the black-and-white format reduces response variability. Methods This cross-sectional analytical study, approved by an ethics committee (protocol nº 3.477.022), included 30 adults aged 18–35 years with normal hearing. Participants underwent CAEP recordings using /ba/ and /da/ stimuli under two conditions: silent black-and-white and silent colored videos. Latencies, amplitudes, and interlatency intervals were analyzed using paired t-tests and Levene’s test (p < 0.05). Results Colored videos resulted in longer latencies for P1 and P2 in both ears, reduced P1 amplitude in the right ear, and increased P2 amplitude bilaterally. The P1-N1 interval was greater with black-and-white videos, while the N1-P2 interval increased with colored videos in the left ear. Conclusion The use of colored videos influences CAEP morphology and variability and should be carefully considered in clinical and research contexts.

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