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Aim <p>The study aimed to evaluate the effect of tinnitus masking on cognitive functioning and the efficacy of tinnitus retraining therapy in reducing the severity of tinnitus handicap.</p> Method <p>The study recruited 15 subjects (mean age = 47.1 ± 11.5) with unilateral chronic tinnitus (6 participants with right-ear tinnitus and 9 participants with left-ear tinnitus); and mild to moderate sensorineural hearing loss. Conducted in two phases, Phase 1 comprised case history, audiometric testing, tinnitus matching, and THI-Bangla assessment. Phase 2 involved P300 administration followed by a 60-session tinnitus retraining therapy (online-offline modality), concluding with post-therapy P300 and THI-Bangla assessments. Therapy outcomes were evaluated by improvements in P300 latency and amplitude and THI-Bangla scores.</p> Results <p>A significant improvement observed post-therapy, with reductions in mean P300 latency for both left (<i>p</i> &lt; 0.001) and right (<i>p</i> &lt; 0.001) ears. Mean P300 amplitude also increased significantly post-therapy for left (<i>p</i> &lt; 0.001) and right (<i>p</i> &lt; 0.001) ears. THI scores also declined substantially (<i>p</i> &lt; 0.001), with a post-therapy mean THI score of 17.80 (SD = 4.64) for males and 12.20 (SD = 3.42) for females, revealing a significant difference (<i>p</i> = 0.033).</p> Conclusion <p>These findings support the efficacy of tinnitus retraining therapy in reducing tinnitus related distress and enhancing cognitive processing, as evidenced by P300 improvements.</p>

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Exploring P300 Responses in Tinnitus: Linking Cognitive and Audiological Assessments

  • 期刊论文

  • 发表日期：

    2025年1月18日

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  • Robin Singh,
  • Nikita Chatterjee,
  • Indranil Chatterjee

摘要

Aim

The study aimed to evaluate the effect of tinnitus masking on cognitive functioning and the efficacy of tinnitus retraining therapy in reducing the severity of tinnitus handicap.

Method

The study recruited 15 subjects (mean age = 47.1 ± 11.5) with unilateral chronic tinnitus (6 participants with right-ear tinnitus and 9 participants with left-ear tinnitus); and mild to moderate sensorineural hearing loss. Conducted in two phases, Phase 1 comprised case history, audiometric testing, tinnitus matching, and THI-Bangla assessment. Phase 2 involved P300 administration followed by a 60-session tinnitus retraining therapy (online-offline modality), concluding with post-therapy P300 and THI-Bangla assessments. Therapy outcomes were evaluated by improvements in P300 latency and amplitude and THI-Bangla scores.

Results

A significant improvement observed post-therapy, with reductions in mean P300 latency for both left (p < 0.001) and right (p < 0.001) ears. Mean P300 amplitude also increased significantly post-therapy for left (p < 0.001) and right (p < 0.001) ears. THI scores also declined substantially (p < 0.001), with a post-therapy mean THI score of 17.80 (SD = 4.64) for males and 12.20 (SD = 3.42) for females, revealing a significant difference (p = 0.033).

Conclusion

These findings support the efficacy of tinnitus retraining therapy in reducing tinnitus related distress and enhancing cognitive processing, as evidenced by P300 improvements.