Misophonia vs Hyperacusis: Sound Sensitivity Patterns

A 2026 study of young adults with normal hearing found that 31.4% of those who reported sensitivity to everyday sounds actually met the objective audiological criteria for hyperacusis. Among that group, over half (52.1%) also exhibited significant symptoms of misophonia, a rate significantly higher than in those without hyperacusis.

How the Study Defined Hyperacusis and Misophonia

Researchers Ahmad Rasouli, Vida Rahimi, Farzaneh Fatahi, and Brian Aazh recruited 153 young adults (ages 19-31) with normal hearing via social media. All participants reported sensitivity to environmental sounds but did not have tinnitus. The team used a clear, audiological measure to classify hyperacusis: an individual’s minimum uncomfortable loudness level (ULLmin) at or below 77 dB HL across frequencies.

Misophonia symptoms were identified using two established screening tools. Participants needed to score ≥2 on item 4 of the Sound Sensitivity Symptoms Questionnaire (SSSQ4), which asks about anger or irritation triggered by specific sounds, or ≥7 on the Misophonia Severity Scale of the Misophonia Questionnaire (MQ-MSS).

The study design was cross-sectional, meaning it compared these defined groups at a single point in time, analyzing their audiological profiles and psychometric scores.

Key Findings: Audiological and Emotional Differences

The group classified with hyperacusis showed distinct audiological patterns. They had significantly lower ULLmin values, meaning they reached discomfort at much softer volumes than the non-hyperacusis group. Their ULL slopes were also steeper, indicating a faster progression from comfortable to uncomfortable loudness.

Psychometric questionnaire scores were markedly higher in the hyperacusis group. This included scores on the Hyperacusis Questionnaire (HQ), the full Sound Sensitivity Symptoms Questionnaire (SSSQ), and the Misophonia Questionnaire (MQ). The most striking difference was in the prevalence of misophonia symptoms: 52.1% of the hyperacusis group met the screening threshold, compared to 32.4% of the non-hyperacusis group.

A multivariable analysis confirmed that hyperacusis status was the single strongest predictor of having misophonia symptoms. Specific audiological characteristics, namely the ULLmin and the steepness of the ULL slope, also contributed to predicting misophonia.

Most Self-Reported Sensitivity Isn’t Objective Hyperacusis

A central finding of this research is that a majority of individuals who feel sensitive to sounds do not meet the strict audiological definition of hyperacusis. Only 31.4% of the recruited sample had a ULLmin ≤77 dB HL. This underscores the importance of objective testing, like measuring uncomfortable loudness levels, to distinguish between general sound sensitivity and the specific condition of hyperacusis.

For clinicians, this means that a patient’s description of “sound sensitivity” requires further investigation. A comprehensive assessment should include both the measurement of ULLs and validated questionnaires for conditions like misophonia and hyperacusis. This integrated approach can lead to more accurate diagnoses and tailored management strategies.

Practical Implications for Assessment and Research

The study provides clear guidance for clinical practice. When a patient presents with sound sensitivity, an assessment should not rely on self-report alone. It should combine:

• Audiological measures: Specifically, measuring uncomfortable loudness levels across frequencies to establish or rule out hyperacusis.
• Psychometric screening: Using tools like the SSSQ and MQ to evaluate the emotional and reactive components of misophonia.

The strong link between hyperacusis and misophonia suggests these conditions may share common neural or physiological pathways. As noted by the authors, this overlap highlights the need for longitudinal studies to track how these symptoms develop over time and for neuroimaging studies to explore the shared brain mechanisms involved. You can read more about the distinct neural responses in conditions like misophonia and hyperacusis in our article on an fMRI study comparing these conditions.

For individuals experiencing sound sensitivity, these findings validate that their experiences are measurable and distinct. It also clarifies that sensitivity can manifest in different ways—as a physical discomfort from volume (hyperacusis) or as an intense emotional reaction to specific sound patterns (misophonia)—and that these often co-occur. Understanding this distinction is key for finding appropriate support, as management strategies for hyperacusis and misophonia can differ. For a deeper comparison, see our related article “Misophonia vs Hyperacusis: Sound Sensitivity Study”.

Conclusion: Toward Integrated Understanding

This research by Rasouli and colleagues moves the field toward a more integrated model of decreased sound tolerance. It confirms that hyperacusis and misophonia are closely linked, with hyperacusis being a major risk factor for misophonia symptoms. It also firmly establishes the value of objective audiological testing in the diagnostic process.

The call for future neuroimaging and longitudinal studies points to the next step: uncovering why these conditions overlap so frequently. This knowledge could ultimately lead to more effective, targeted interventions for the complex spectrum of sound sensitivity disorders.

Source: Rasouli A, Rahimi V, Fatahi F, et al. A comparison of misophonia proportion and patterns of uncomfortable loudness levels between individuals with and without hyperacusis reporting sensitivity to environmental sounds. Int J Audiol. 2026; PMID: 42057697.