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2. Earplug - Wikipedia

   en.wikipedia.org/wiki/Earplug

   Using both ear muffs (whether passive or active) and earplugs simultaneously results in maximum protection, but the efficacy of such combined protection relative to preventing permanent ear damage is inconclusive, with evidence indicating that a combined noise reduction ratio (NRR) of only 36 dB (C-weighted) is the maximum possible using ear ...

3. Hearing protection device - Wikipedia

   en.wikipedia.org/wiki/Hearing_protection_device

   Various earmuff hearing protectors. Sound levels of some daily activities. A hearing protection device, also known as a HPD, is an ear protection device worn in or over the ears while exposed to hazardous noise and provide hearing protection to help prevent noise-induced hearing loss.

4. Noise-cancelling headphones - Wikipedia

   en.wikipedia.org/wiki/Noise-cancelling_headphones

   Noise cancellation to eliminate ambient noise is never passive because of the circuitry required, so references to passive noise cancellation actually are referring to products featuring sound isolation. To prevent higher-frequency noise from reaching the ear, most noise-cancelling headphones depend on sound isolation or soundproofing.

5. Autism - Wikipedia

   en.wikipedia.org/wiki/Autism

   Autism spectrum disorder [a] (ASD), or simply autism, is a neurodevelopmental disorder "characterized by persistent deficits in social communication and social interaction across multiple contexts" and "restricted, repetitive patterns of behavior, interests, or activities". [11] Sensory abnormalities are also included in the diagnostic manuals ...

6. Sensory processing disorder - Wikipedia

   en.wikipedia.org/wiki/Sensory_processing_disorder

   Sensory processing disorder (SPD), formerly known as sensory integration dysfunction, is a condition in which multisensory input is not adequately processed in order to provide appropriate responses to the demands of the environment.

7. Autism Speaks - Wikipedia

   en.wikipedia.org/wiki/Autism_Speaks

   Autism Speaks Inc. is an American non-profit autism awareness organization and the largest autism research organization in the United States. [4] [5] [6] It sponsors autism research and conducts awareness and outreach activities aimed at families, governments, and the public. [4]

8. Hearing loss - Wikipedia

   en.wikipedia.org/wiki/Hearing_loss

   Ear protection, if used correctly, can reduce noise to safer levels, but often, providing them is not sufficient to prevent hearing loss. Engineering noise out and other solutions such as proper maintenance of equipment can lead to noise reduction, but further field studies on resulting noise exposures following such interventions are needed.

9. Conditions comorbid to autism - Wikipedia

   en.wikipedia.org/wiki/Conditions_comorbid_to_autism

   For ASD other than autism the association is much weaker: the same study reported typical levels of intelligence in about 94% of 53 children with PDD-NOS. [49] Estimates are that 40–69% of individuals with ASD have some degree of an intellectual disability, [ 31 ] with females more likely to be in severe range of an intellectual disability.