Pure tone auditory thresholds can change according to duration of interrupted tones in patients with psychogenic hearing loss

Naoki Oishi, Yasuhiro Inoue, Akemi Hori, Reiko Yakushimaru, Naoyuki Kohno, Kaoru Ogawa

Research output: Contribution to journalArticlepeer-review

Abstract

Conclusion: Pure tone auditory thresholds can change according to duration of interrupted tones in patients with mild to severe psychogenic hearing loss (PHL). Objectives: To examine how the duration of stimulus tones affects the hearing thresholds of patients with PHL. Methods: Twelve patients with PHL (21 ears) were enrolled in this study. We initially measured their hearing thresholds using interrupted tones with a duration of 2 s and equal length of on-time and off-time, 225 ± 35 ms, respectively. After a 10 min interval, we measured their hearing thresholds using the same interrupted tones conditions lasting 5 s. The average threshold gains (2 s thresholds minus 5 s thresholds) were compared to those of 15 control subjects with normal hearing (25 ears), 15 patients with cochlear hearing loss (23 ears), and 4 patients with retrocochlear lesions (4 ears). Patients with profound PHL (4 patients, 6 ears) were analyzed separately. Results: The average threshold gain of PHL patients (excluding profound PHL patients) at all frequencies was 18.3 dB, which was significantly larger than that of other groups: 0.3 dB (profound PHL patients), 3.8 dB (controls with normal hearing), 3.0 dB (patients with cochlear hearing loss), and 3.2 dB (patients with retrocochlear lesions).

Original languageEnglish
Pages (from-to)628-632
Number of pages5
JournalActa Oto-Laryngologica
Volume131
Issue number6
DOIs
Publication statusPublished - 2011 Jun 1

Keywords

  • Attention
  • audiogram
  • loudness
  • short-term memory

ASJC Scopus subject areas

  • Otorhinolaryngology

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