By Dr. Jennifer J. Gans
Most people can tune out ordinary sounds—a humming refrigerator, footsteps, or the buzz of a light. The brain’s sensory system filters these background noises automatically, allowing us to focus on what matters. But for those with hyperacusis, this natural filtering process malfunctions. Everyday sounds feel unbearably loud or even painful.
At its core, hyperacusis is not a problem of the ears—it’s a problem of prediction. The brain has turned up the volume because its internal “cancellation system” has failed.
The Brain’s Predictive Model
The brain operates as a prediction machine. It constantly compares incoming sensory input to internal expectations built from past experience. When the sound it receives matches what it expects, the brain cancels it out—it fades into the background.
For example, you don’t notice the sound of your own breathing, or the clothes on your skin after a few moments, because the brain predicts these sensations and efficiently filters them away.
This predictive “cancellation system” keeps us from being overwhelmed by familiar, harmless input. Our brain does us a favor and simply cancels out sounds that are of no importance.
When the System Fails
In hyperacusis, this predictive system misfires. Trauma (usually including a loud, painful sound), fear that can accompany hearing damage, tinnitus onset, or chronic stress puts the brain on high alert. When under stress, the brain is more likely to make a prediction error. The brain stops recognizing familiar sounds as safe.
Instead, it flags them as new, unfamiliar, or threatening.
This failure to predict correctly means the sounds are not cancelled out—they’re amplified. The nervous system overreacts, releasing stress hormones and tightening auditory attention.
Over time, even moderately loud sounds can evoke discomfort, startle, or panic. The more this occurs, the more sensitized the system becomes, reinforcing the problem.
Turning Down the Brain’s Volume
The good news is that the same neuroplasticity that causes this problem can also undo it. With education, disconnecting fear from sound, and reducing anxiety, the brain can relearn which sounds are safe. This process involves:
- Education, to shift the interpretation of sound from “threat” to “neutral.”
- Mindfulness-based strategies found at MindfulTinnitusRelief.com, which help calm the body’s fear response.
- Taking measures to calm the anxiety-fear response networks (Cognitive Behavior Therapy (CBT); medication if indicated for anxiety).
When the nervous system relaxes, fear and sound are no longer linked, the brain’s predictive filters begin to function normally again—turning the “volume knob” back down.
From Error to Balance
Hyperacusis is best understood not as ear damage, but as a predictive failure of the brain—a temporary breakdown in how sensory information is categorized. The sound itself is unchanged, but the meaning assigned to it is distorted.
By restoring trust in sound and calming the neural alarm system, individuals can retrain their auditory networks to once again recognize safe, familiar input. The brain, given the right conditions, knows how to cancel the noise.
About the Author
Dr. Jennifer Gans is a San Francisco based clinical psychologist recognized internationally for her expertise in the psychological impact of tinnitus and hyperacusis on well-being. She is the CEO/Founder of MindfulTinnitusRelief.com, the first-ever self-administered 8-week online skill-building course of its kind for learning how to shift tinnitus from ‘bothersome’ to ‘non-bothersome’. With both a Cognitive Behavioral and Mindfulness Meditation approach, Dr. Gans presents globally to physicians, researchers, and audiologists on her research and tinnitus patient education, a critical piece of the tinnitus management puzzle.More articles by Dr. Jennifer Gans:
Bothersome Tinnitus: When the Brain’s Natural Cancellation System Fails · The Importance of Tinnitus Education
