听力残障后视觉认知功能研究

听觉和视觉是主要的信息传入通道 ,也是认知发育的基础。当听力信息传入受阻后 ,只能主要靠视觉感知外界信息 ,此时视觉认知功能、整体智能发育、智力结构有何改变 ,影响因素又是什么 ,这方面的研究报道很少1] 。本文通过对早期听力残障后儿童的视觉认知、智能发育水平研究 ,旨在评估聋童认知功能发育状况并为及早预防听力残障后引发的心理、行为、学习等问题提供资料依据。1　资料和方法1.1　研究对象西安、咸阳、长安县、户县、临潼县 6所聋哑学校18岁以下的学生共 6 38人 ,除听力残疾外 ,因资料不全或患明显的先天性疾病、精神发育迟滞…

A Research on Visual Cognition Development Followed by Early Hearing Handicap

Objective:To evaluate the visual cognition and comprehensive intelligence followed by hearing handicap which occurs in early stage.Methods:566 healthy subjects with early hearing impairment were tested by Visual-Motor Integration Developmental Test(VMI);and 62 of them were tested by Hiskey-Nebraska Test of Learning Aptitude(H-NTLA);and 45 subiects were tested by performance scale of WISC (PS-WISC) and Combined Raven's Test (CRT). Results:The hearing handicaped children got significantly lower scores in VMI,H-NTLA, CRT and WISC-PS.The starting age of receiving special education in deaf school and the age of fitting hearing-aid, and positive family history significantly affected the status of visual cognition .Conclusion:Early hearing handicap could remarkably impede the children's visual perception and intelligence development.Offering with hearing-aid ,and special education and speech training as early as possible could prevent him from disadvantageous condition to some extent.