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http://www.codas.periodikos.com.br/article/doi/10.1590/2317-1782/e20250352en
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Original Article

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

Jamyle Rodrigues Luis; Pedro de Lemos Menezes; Carlos Henrique Alves Batista; Kelly Cristina Lira de Andrade

http://dx.doi.org/10.1590/2317-1782/e20250352en CoDAS, vol.38, n5, e20250352, 2026
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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.

Keywords

Electrophysiology; Auditory Evoked Potentials; Speech; Audiology; Speech Therapy

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Submitted date:
24/09/2025

Accepted date:
05/01/2026

6a8100f1a953955af02d7df2 codas Articles
2317-1782 (Electrónico)
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