摘要
为了进一步了解视觉注意习惯化行为与脑功能障碍的关系 ,对79例智能发育异常的2～36个月婴幼儿进行视觉注意习惯化测试。结果显示 :异常儿对6次重复刺激的注视时间非常接近 ,不象正常儿那样有明显逐步下降规律 ;异常儿对1次新鲜图象刺激的注视时间增幅很小 ,不象正常儿那样有一个十分明显的增加高峰 ;异常儿与正常儿的应答降低率和应答恢复率有十分显著的差别。提示视觉注意习惯化行为能够较客观地反映婴幼儿脑功能发育程度 。
To futher understand the relationship between visual attention habituation and mental retardation in infants with such disorders,the test of visual attention habituation was performed in79infants with mental retardation aged beˉtween2～36months.The results showed that the fixation time for exposing to6times of repeated stimulation was very approximate in these abnormal infants whereas the fixation time in normal infants significantly reduced step by step.But,amplitude increment in fixation time for exposing to a strange picture stimulation showed not remarkable in these abnormal infants.On the contrary,a very high peak could be found in normal infants,suggesting that significant difference existed in both response decrement rate and response recovery rate between abnormal and normal infants and further indicating that the visual attention behavior could objectively reflect the degree of the brain function development in the infants and difˉferentiate the infants with normal development from the abnormal infants.
出处
《临床儿科杂志》
CAS
CSCD
北大核心
2003年第3期174-175,192,共3页
Journal of Clinical Pediatrics
基金
国家自然科学基金资助项目 (项目批准号:39670640)
关键词
智能迟缓
视觉注意
习惯化
婴幼儿
mental retardation visual attention habituation infants
