Key terms related to misophonia, sound sensitivity, and related conditions.

Sound Sensitivity Terms

Misophonia — A condition where specific sounds (chewing, breathing, clicking, tapping) trigger intense emotional responses including anger, anxiety, disgust, or a fight-or-flight reaction. Literally means “hatred of sound.”

Hyperacusis — Sensitivity to the volume of sounds — ordinary sounds feel uncomfortably loud. Distinct from misophonia, which is a reaction to specific sounds regardless of volume.

Trigger Sound — A specific sound that provokes an intense emotional reaction in someone with misophonia. Common triggers include eating sounds, breathing, keyboard typing, and pen clicking.

Mouth Sounds — A category of common misophonia triggers including chewing, lip smacking, swallowing, and throat clearing. Often the most distressing trigger category.

Sound Rage — The intense anger or fury that misophonia sufferers experience when exposed to trigger sounds. Not a clinical term but widely used in the misophonia community.

Decreased Sound Tolerance (DST) — An umbrella term covering all forms of reduced tolerance to sounds, including misophonia, hyperacusis, and phonophobia.

Neurological Terms

Auditory Cortex — The brain region responsible for processing sound. Research shows atypical connections between the auditory cortex and limbic system in people with misophonia.

Limbic System — The brain’s emotional center, including the amygdala and anterior cingulate cortex. In misophonia, trigger sounds activate the limbic system disproportionately.

Anterior Cingulate Cortex (ACC) — A brain region involved in emotional regulation and attention. Studies show hyperactivation in the ACC of misophonia sufferers when exposed to trigger sounds.

Autonomic Nervous System — The part of the nervous system controlling involuntary functions. Misophonia triggers activate the sympathetic (fight-or-flight) branch.

Treatment Terms

Tinnitus Retraining Therapy (TRT) — A therapeutic approach originally for tinnitus that has been adapted for misophonia. Combines counseling with sound therapy.

Cognitive Behavioral Therapy (CBT) — Evidence-based therapy that helps manage misophonia by changing the emotional and behavioral responses to trigger sounds.

Sound Therapy — The use of background noise (white noise, pink noise, nature sounds) to reduce the contrast between trigger sounds and the environment.

Noise-Canceling Headphones — Devices that actively reduce ambient noise, commonly used by misophonia sufferers to manage trigger sounds in daily life.

White Noise Machine — A device that produces consistent background noise to mask trigger sounds. Commonly used for sleep and work environments.