According to Healthline, misophonia is a condition where specific sounds trigger strong emotional reactions such as anger, anxiety, or disgust. Common trigger sounds include chewing, heavy breathing, throat clearing, pen clicking, or repetitive finger tapping. The reaction does not necessarily depend on volume but can be related to the type of sound and its repetition.

The Times of India also mentions familiar situations, such as a colleague repeatedly clicking a pen during a meeting. For some, these noises can cause immediate discomfort, even leading to anger or an urge to leave the source of the sound.

Familiar sounds can trigger strong reactions

A study by a team of scientists from the University of Mississippi and other medical and academic institutions in the US, published in 2024 in the Journal of Psychopathology and Clinical Science, surveyed about 4,000 American adults. The results indicated that 78,5% of participants were sensitive to misophonia-related sounds, but only 4,6% experienced symptoms severe enough to significantly impact their lives.

Among the 4,6% group, many reported that the condition began in childhood or adolescence, persisted over time, and severely affected at least one area of their lives.

Not everyone bothered by chewing or tapping sounds necessarily has misophonia. The intensity of the reaction, its frequency, and its impact on daily life are important factors to consider.

The sound of fingers tapping on a table can create intensely irritating noise for individuals with misophonia. Image created by AI.

The brain may process sounds differently

The Amsterdam University Medical Center (Netherlands) conducted a study involving 21 individuals with misophonia and 23 in a control group. Participants watched videos with trigger sounds like lip-smacking and heavy breathing, alongside generally unpleasant and neutral videos. Researchers used functional magnetic resonance imaging (fMRI) to record brain activity while monitoring heart rate and emotional responses.

Results showed that trigger sound videos caused more anger, disgust, and sadness in the misophonia group than in the control group. Their heart rates also increased with the emotional responses. Brain scans recorded increased activity in several regions, including the right insula, anterior cingulate cortex, and right superior temporal gyrus.

According to the authors, these findings may suggest that misophonia is related to how the brain processes sounds and identifies salient stimuli. The salience network helps the brain recognize notable information and coordinate responses. For individuals with misophonia, a sound that is normal to others can be accompanied by a stronger emotional and physiological reaction.

Why do individuals react differently?

A characteristic of misophonia is that reactions are often tied to specific sounds, not simply dependent on volume. For example, a person's chewing sound might cause intense irritation, while loud public noise does not elicit a similar reaction.

The exact cause of this condition is still under investigation. Misophonia is sometimes observed alongside other mental health issues, but this link does not prove that these issues directly cause sound sensitivity.

How to reduce discomfort from trigger sounds

When a noise causes tension, listeners can move to a quieter location, use gentle background sounds to reduce focus on the trigger, or politely communicate with those nearby if appropriate. Identifying common trigger sounds and preparing coping strategies can also help limit awkward situations.

If reactions occur frequently, causing intense anger or anxiety, individuals may start avoiding family meals, work environments, or social activities. Those experiencing this condition should seek a doctor or mental health professional for assessment and advice on coping strategies.

Bao Bao (Compiled)