Misophonia and the Brain: New Evidence That Sound Reactions Are Neurological

People with misophonia often struggle to explain why certain sounds trigger such intense emotional and physical reactions. Others may suggest it is psychological, behavioural, or a matter of tolerance. A new brain imaging study provides strong evidence that misophonia is linked to measurable differences in how the brain is wired and communicates.

In early 2026, a research team led by Fatima T. Husain published an advanced brain imaging study examining how brain networks differ in people with misophonia, both with and without hyperacusis.

Studying misophonia in the resting brain

The researchers used resting-state functional MRI, a technique that looks at how different brain regions communicate when a person is not performing a task. This allows scientists to study underlying brain organisation rather than momentary reactions.

Participants were carefully assessed and divided into three groups:

  • People with misophonia only
  • People with misophonia and hyperacusis
  • People without sound sensitivity

Advanced computer-based analysis was then used to identify patterns of brain connectivity across tens of thousands of neural connections.

Misophonia shows a clear brain signature

The study found that brain connectivity patterns could reliably distinguish people with misophonia from those without, with high accuracy. This means that misophonia leaves a detectable neurological fingerprint, even when a person is at rest.

Importantly, people with misophonia showed consistent differences in brain networks involved in:

  • Emotional significance and threat detection
  • Attention and cognitive control
  • Motor and impulse regulation

These systems help determine what the brain flags as important, how strongly it reacts, and how easily reactions can be controlled.

Misophonia and hyperacusis are related but distinct

The study also showed that misophonia and hyperacusis share some overlapping brain features but are not the same condition.

People with misophonia alone showed changes in deeper brain regions involved in habit formation and automatic responses. In contrast, people with both misophonia and hyperacusis showed additional changes in brain areas linked to processing complex sensory information.

This helps explain why:

  • Some people react to specific trigger sounds rather than loudness
  • Others experience both emotional triggers and sound intolerance
  • Treatments may need to differ depending on the pattern of sound sensitivity

What this means for people with misophonia

This research strongly supports several important and validating points:

  • Misophonia is a brain-based condition
  • Reactions are automatic and not a choice
  • Emotional responses arise from how the brain processes sound significance
  • Misophonia and hyperacusis should be assessed separately

The findings also support psychologically informed treatments that help retrain how the brain responds to sound, rather than approaches focused only on hearing or sound avoidance.

Why diagnosis matters

Because misophonia and hyperacusis involve different brain mechanisms, treating them as the same condition can lead to frustration and limited improvement. This study reinforces the importance of careful assessment and personalised treatment planning.

Understanding which brain systems are involved helps guide more targeted support and more realistic expectations.

What this means for care

At Hashir Tinnitus Clinic, we recognise misophonia as a genuine neurological condition involving emotion, attention, and control networks in the brain. Assessment focuses on understanding trigger patterns, emotional responses, and sound tolerance, so care can be matched to the underlying mechanism rather than symptoms alone.

This research also supports approaches that:

  • Reduce threat responses linked to trigger sounds
  • Improve emotional regulation
  • Strengthen attention and control processes
  • Avoid one-size-fits-all sound exposure

Learn more

If you would like to read the original open-access research paper, it is available here:

Ajmera, S., Khan, R. A., Kim, G., Jain, N., Castro, A., Berenbaum, H., & Husain, F. T. (2026). Altered intrinsic brain connectivity in misophonia, with and without hyperacusis. Hearing Research.
https://doi.org/10.1016/j.heares.2025.109521

If misophonia is affecting your daily life and relationships, and you would like to explore evidence-based support options, we are always happy to discuss this with you during an appointment.

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