![]() ![]() Other signs may include repetitive behaviors (stereotypical of autism) as well as poor eye contact or eye movement. Headaches or migraines triggered by light 5,6.Discomfort from fluorescents and other artificial light.For instance, physical symptoms may include: 3 Sensitivity to light can manifest in different ways for people with autism. 8 Signs and Symptoms of Autism Light Sensitivity 1,7 Another small study reported similar results noting that fluorescent lighting increased the frequency of stereotypical repetitive behaviors in autistic children. ![]() In fact, one small study found that the use of fluorescent lighting increased the repetitive behaviors of children with autism, which may be attributed to a hypersensitivity to fluorescent light flicker. Approximately half of autistic individuals experience what is classified as a severe sensitivity to fluorescent lighting. 2 Fluorescent Lighting and AutismĬertain types of lighting, specifically fluorescent lighting, has been shown to have a particularly negative affect on individuals with autism. 4 Other findings similarly suggest that is not light which is the direct trigger, but instead an added complication that is enhanced by other environmental and emotional stressors. As a result, the brain becomes confused, hindering one's ability to process light stimuli. This is further compounded by the intensity of the light, the specific wavelengths and any harsh glare. Bright lighting added to an already visually-disorienting environment may provoke strong or painful responses to light. 1,3Īnother explanation deals with an overload of the senses. These physical changes contribute to the many visual and behavioral changes experienced by those on the autism spectrum. Furthermore, there is evidence that they also have a lower neurological threshold for environmental stimuli, including light. Interestingly, those with autism have also been found to have physical differences in the structures of their central nervous systems. Photosensitive retinal ganglion cells-which have been implicated in migraine-related light sensitivity-are central in this process, thus suggesting that impairment may similarly affect how autistic persons perceive light. Researchers have linked autistic individuals with abnormal pupillary light reflex, which refers to how the pupil reacts and adapts to the brightness of various light sources. With so little direct research on light sensitivity and autism, experts have had a difficult time explaining exactly what causes painful responses to light reported by many with the disorder. 2 Other analyses have noted that hypersensitivity to light and photophobia increases with autistic traits as well. Studies have shown that it may not be as prominent as other sensory problems-notably hearing and touch-but one small study has pegged that more than half of autistic adolescents have visual processing deficits, including sensitivity to light. With as many as 90-95% of people with autism spectrum disorder having external sensitivities, it is not surprising that exposure to bright light can affect their symptoms. How Light Sensitivity Affects Those with Autism We take a comprehensive look at the research and recommendations for sensitivity to light that stems from autism spectrum disorder. How visual stimuli is experienced in an autistic individual may vary greatly from a person without autism and lead to uncomfortable symptoms including light sensitivity. The city agency said that an inspector "spoke with Tweeter representatives and Building maintenance engineer representatives," who declined access to the sign but said that it was a "a temporary lighted sign for an event.It is widely understood that those on the autism spectrum typically experience abnormalities in sensory integration and how they process visual experiences. ![]() San Francisco's Department of Building Inspection launched a complaint against the company on Friday, saying the "X" sign was installed without a permit. The social media company similarly had permit issues with its new "X" sign. While "Twitt" was quickly removed, "er" remained up by itself for a brief period because the company did not have the necessary permits for the sign takedown. The old Twitter sign, featuring a blue bird, was removed from the building last week over the course of several days after Elon Musk announced the company's rebranding on July 24. Workers dismantled a flashing "X" sign atop the San Francisco headquarters of the company formerly known as Twitter on Monday, just days after it was installed. Bright 'X' sign at the former Twitter HQ concerns neighbors Bright 'X' sign at the former Twitter HQ concerns neighbors 02:28 ![]()
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