About Hyperacusis (Noise Sensitivity)
The disease causes of hyperacusis are still being studied, but there are some theories and potential factors that may contribute to its development. These include:
- Hyperexcitability of specific brain areas: Studies have shown that people with hyperacusis may have changes in how their brain processes sound, leading to increased sensitivity.
- Increased sound amplification in the brain: Hyperacusis may happen because the brain amplifies sound signals, making normal sounds seem much louder.
- Greater anxiety or emotional response to sound: Emotional factors may play a role in hyperacusis, with individuals experiencing heightened anxiety or emotional distress in response to certain sounds.
Non-modifiable risk factors for hyperacusis cannot be changed or controlled. These include:
- Tinnitus: People who already have tinnitus (ringing in the ears) are more likely to develop hyperacusis.
- Autism spectrum conditions: Research suggests that about 40% of autistic children also have hyperacusis.
Modifiable (things that can be influenced or changed) risk factors for hyperacusis are not well known. However, exposure to high noise levels over time, such as from loud music or occupational noise, may potentially increase the risk of developing hyperacusis. It is important to protect your ears from excessive noise exposure whenever possible.
Remember, these are general descriptions and individual cases may vary. If you have concerns about hyperacusis or noise sensitivity, it is best to consult with a healthcare professional for a comprehensive evaluation and personalized advice.
The most common early symptoms of hyperacusis (noise sensitivity) include:
- Ordinary sounds seeming too loud
- Your own voice sounding too loud
- Discomfort in your ears
- Headaches
- Difficulty concentrating
As hyperacusis progresses or reaches higher severity, additional symptoms may occur, such as:
- Pain when hearing sudden noises
- A popping sensation in the ear when hearing loud noises
- Anxiety
- Poor sleep
- Fatigue
- Fear of social situations
In children, discomfort due to hyperacusis may cause symptoms like crying or screaming. It's worth noting that hyperacusis is different from phonophobia, which is the fear of loud sounds. However, hyperacusis can lead to phonophobia due to the perceived excessive loudness of certain sounds, so the two conditions may appear together. Other associated conditions with hyperacusis include tinnitus, Bell's palsy, facial paralysis, Williams syndrome, anxiety, depression, and schizophrenia.
To diagnose hyperacusis (noise sensitivity), several examinations, tests, and procedures are commonly performed:
- Physical examination: A healthcare provider will examine your ear and head for any physical issues that might be causing your sensitivity to sound.
- Medical history: Your doctor will ask about your medical history to identify any conditions or events that might have affected your hearing.
- Hyperacusis Questionnaire (HQ): This questionnaire assesses the presence and severity of hyperacusis. It consists of 14 questions answered on a scale.
- Pure-tone audiometry: This test measures your hearing sensitivity by presenting tones at different frequencies. It helps determine if there is any hearing loss.
It's important to consult with an ENT (ear, nose, and throat) specialist or audiologist (hearing specialist) for an accurate diagnosis and evaluation of hyperacusis. They can recommend appropriate examinations and tests based on your individual situation.
The goals of treatment for hyperacusis (noise sensitivity) are to manage symptoms and reduce hearing sensitivity. Here are the recommended treatments and how they work to achieve these goals:
- Cognitive behavioral therapy (CBT): A mental health professional teaches you how to manage your emotional responses to sound and helps you address psychological causes of hyperacusis, such as stress. CBT can help alleviate psychological distress and improve sound tolerance.
- Tinnitus retraining therapy (TRT): This therapy uses a device similar to a hearing aid that creates low-intensity sound. The device helps your brain reduce emphasis on tinnitus and can also help reduce hearing sensitivity in hyperacusis.
- Sound desensitization: With the guidance of a hearing specialist, you listen to soft static noise for a set amount of time every day. This gradually increases your tolerance to sound, reducing sensitivity over time.
- Sound therapy: Wearing a noise-generating device that produces white noise helps train the brain to accept ordinary sounds. This treatment can take up to 12 months to complete and aids in reducing hyperacusis symptoms.
- Surgery (in severe cases): Some individuals with severe symptoms may undergo a surgical procedure called round and oval window reinforcement. This surgery provides support to the structures in the ears, helping to reduce sound sensitivity.
It's important to note that specific medications for hyperacusis are not well-known. However, medications like alprazolam, carbamazepine, fluoxetine, fluvoxamine, and citalopram have been used in some cases with reported success.
Remember, these treatments aim to manage symptoms and reduce sensitivity to sound in hyperacusis.
Medication dosing may be affected by many factors. Check with your health care professional about dosing for your individual situation. Side effects can occur. Check with your health care professional or read the information provided with your medication for side effect information.