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The effect of eye disease, cataract surgery and hearing aid use on multisensory integration in ageing
Cortex ( IF 3.6 ) Pub Date : 2020-10-08 , DOI: 10.1016/j.cortex.2020.08.030
Rebecca J Hirst 1 , Annalisa Setti 2 , Céline De Looze 3 , Kwadwo O Akuffo 4 , Tunde Peto 5 , Rose A Kenny 6 , Fiona N Newell 7
Affiliation  

Sensory impairment is common in ageing, as are approaches to treat it. However, the impact of age-related sensory impairment upon multisensory perception remains unexplored, despite the multisensory nature of our environment. Here, we used data from The Irish Longitudinal Study of Ageing (TILDA) to investigate whether common, age-related eye diseases (cataracts, glaucoma and Age-Related Macular Degeneration, ARMD) and clinical intervention to improve sensory function (cataract removal and hearing aids) influence multisensory integration in older adults. Integration was measured using the Sound-Induced Flash Illusion (SIFI), and the extent to which identifying two flashes was improved by accompanying auditory information (“visual gain”). Visual gain was not influenced by eye disease or treatment. For the SIFI, participants self-reporting cataracts, ARMD or glaucoma were as susceptible as healthy controls, even when controlling for age, sex, cognition, self-reported vision/hearing and visual acuity. In a second analysis using retinal photographs, glaucoma and ARMD (hard drusen) did not influence susceptibility relative to controls. However, participants with soft drusen ARMD were more susceptible to the illusion at long Stimulus-Onset Asynchronies (SOAs) compared with controls. Following this, we identified groups reporting bilateral cataract removal or hearing aid acquisition >4 years and <2 years prior to assessment, enabling comparison of longer- and shorter-term effects of interventions. Cataract removal groups did not differ from controls. Longer-term hearing aid users were less susceptible to the SIFI at short SOAs compared with controls. Our findings suggest that multisensory integration in ageing might be specifically influenced by ARMD (soft drusen) and hearing aid use.



中文翻译:

眼睛疾病,白内障手术和助听器使用对衰老中多感官融合的影响

感觉障碍和老龄化是常见的。然而,尽管我们的环境具有多感官性质,但与年龄相关的感官障碍对多感官知觉的影响仍待探索。在这里,我们使用了爱尔兰纵向衰老研究(TILDA)的数据来调查是否存在常见的,与年龄相关的眼部疾病(白内障,青光眼和与年龄有关的黄斑变性,ARMD)和临床干预以改善感觉功能(白内障摘除和听力)艾滋病)影响老年人的多感官融合。使用声音诱发的幻觉(SIFI)来测量集成度,并通过附带的听觉信息(“视觉增益”)提高识别两次闪烁的程度。视觉增益不受眼睛疾病或治疗的影响。对于SIFI,参与者自我报告白内障,即使控制年龄,性别,认知,自我报告的视力/听力和视敏度,ARMD或青光眼也像健康对照组一样易感。在第二次使用视网膜照片的分析中,相对于对照,青光眼和ARMD(硬疣)不影响药敏性。但是,与对照组相比,患有软性玻璃疣的ARMD的参与者在长时间的刺激发作异步(SOA)时更容易产生错觉。在此之后,我们确定了报告评估前大于4年且小于2年的双侧白内障摘除或助听器获取的人群,从而能够比较干预措施的长期和短期效果。白内障摘除组与对照组无差异。与对照组相比,长期助听器用户在短期SOA情况下对SIFI的敏感性较低。

更新日期:2020-10-30
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