唐氏症兒童是最常造成智能障礙的染色體異常疾病，近期的研究亦指出唐氏症兒童會出現不同的視知覺功能異常，然而探討唐氏症兒童的視覺組織能力之研究則闕如。因此本研究的目的為探討唐氏症兒童視覺組織能力之發展、及年齡與此項能力之相關性；另外也會同時檢視唐氏症兒童視覺組織能力與活動參與度之間的關係。 96 位唐氏症兒童（50 位男生，40 位女生；年齡範圍為7 歲1 個月至14 歲10 個月，平均年齡為9 歲7 個月）參與研究，分別接受關於視覺組織能力（Hooper 視覺組織測驗）、認知能力（魏氏兒童智力測驗）及活動參與度（文蘭適應行為量表）之評量 。結果顯示唐氏症兒童的視覺組織能力會隨著年齡增加而進步，而且也會與他們的活動參與度有顯著相關。其認知能力與Hooper 視覺組織測驗、文蘭適應行為量表之分數也有顯著相關。因此在協助唐氏症兒童發展參與活動的功能技巧時、也必須同時強調改善基本的身體功能（例如視覺組織能力）。

Previous work has highlighted that children diagnosed with Down syndrome (DS) may be at risk of developing visual perceptual problems.However, visual organization ability, one of the visual-perceptual functions, has
not been well examined in DS to date. This study aimed to investigate the
developmental profile of visual organization ability in children with DS; the effect of age on visual organization ability was also examined. The relationship between visual organization ability and activity participation was analyzed.Ninety-six children (50 boys, 40 girls) with DS (age range = 7yr 1mo to 14yr 10mo; mean age = 9yr 7mo) were assessed on measures of visual organization ability (Hooper Visual Organization Test), cognitive abilities (Wechsler Intelligence Scale for Children-Third Edition), and activity participation (Vineland Adaptive Behavior Scale). Results revealed the age-related improvements in body functions and correlations between specific body function (visual organization ability) and activity participation. Significant correlations among IQ and all other measures were noted. Our finding confirmed the role of visual organization ability on activity participation with DS.
Interventions focused on improving body functions is needed while
stressing the acquisition of functional skills that increased participation in age-appropriate activities