The Cognitive Mechanism Of Inattentional Blindness In 8-to 11-year-old Children

Inattentional blindness is a phenomenon that when one's attention is focused on a specific task,they often can not notice a unexpected stimulus,even if the stimulus is obvious.Researchers have long been discussing the influencing factors of inattentional blindness,but there is little research on children's inattentional blindness,and the system is not high.In view of the important impact on the development of cognitive function in children and adolescents,this study explores the age development process of inattentional blindness from the perspective of development and attempts to explore the causes of this developmental difference.Experiment 1 uses the classical static inattentional blindness paradigm to explore the differences in the age of inattentional blindness.A total of 120 children aged from 8 to 11 years old were randomly selected.The results showed that the incidence of inattentional blindness decreased with age,Compared with older(10?11-year-old)children,the unexpected stimulate awareness rate of children who aged 8?9 years were significantly lower than 10?11 years.Experiment 2 and experiment 3 on the basis of experiment 1,respectively,from the perspective of limited resources to explore this reasons for the age differences.The subjects of the two experiments were the same as those of the experiment 1,and the independent variables were age and task type.The results were consistent with previous studies,and the performance of response time increased with age,and the two attentional behaviors were significantly enhanced in the critical age range between 9 and 10 years old.Experiment 2 focus on the differences of the attention capacity in the age development,shows that the interaction between the task type and the age was not significant,indicating that the absolute limits of the attention resources capacity have the same effect on children at both age levels before and after the change.Experiment 3 focus on the differences of inhibitory control in age development,shows that the interaction between different task types and age was significant,indicating that development of the 10-year-old and 11-year-old children have a significant higher level improvement of inhibitory control than children aged 8 and 9.In summary,this study found the occurrence of inattentional blindness is indeed closely related with age,8 to 9-years-old children than 10 to 11-years-old are less likely to perceive the unexpected event.As for the causes of this developmental difference,we believe that it was mainly because the children's ability of inhibitory control was improved.