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Hyperacusis is an increased sensitivity to sound and a low tolerance for environmental noise. Definitions of hyperacusis can vary significantly; it often revolves around damage to or dysfunction of the stapes bone, stapedius muscle or tensor tympani ().
There are a wide variety of symptoms that have been found to be associated with sensory overload. These symptoms can occur in both children and adults. Some of these symptoms are: Irritability "Shutting down," or refusing to participate in activities and interact with others; Over-sensitivity to touch, movement, sights, or sounds
Annoyance effects of noise are minimally affected by demographics, but fear of the noise source and sensitivity to noise both strongly affect the 'annoyance' of a noise. [42] Sound levels as low as 40 dB(A) can generate noise complaints [43] and the lower threshold for noise producing sleep disturbance is 45 dB(A) or lower. [44]
Proponents have also claimed that adults may also show signs of sensory processing difficulties and would benefit for sensory processing therapies, [71] although this work has yet to distinguish between those with SPD symptoms alone vs adults whose processing abnormalities are associated with other disorders, such as autism spectrum disorder.
The sufferer becomes anxious to get away from the source of the loud sound and may get headaches. [1] It may also be related to, caused by, or confused with hyperacusis, extreme sensitivity to loud sounds. [5] Phonophobia also has been proposed to refer to an extreme form of misophonia. [6]
Hyperesthesia is a condition that involves an abnormal increase in sensitivity to stimuli of the senses.Stimuli of the senses can include sound that one hears, foods that one tastes, textures that one feels, and so forth.
Modern over-the-ear headphones offer incredible sound and impressive noise-cancelling, often for a surprisingly low price. (Photos: 1More, Soundcore, Sony)
Adults and children who report a sensory dysfunction or a sensory-integration disturbance often also present with a learning disability. A sensory friendly environment is created to assist those with a sensory processing disorder (SPD). The disorder is characterized by a hypersensitivity to stimuli accompanied by anxiety. [1]