Objective Autism spectrum disorder(ASD)is a neurodevelopmental condition characterized by difficulties with communication and social interaction,restricted and repetitive behaviors.Previous studies have indicated that...Objective Autism spectrum disorder(ASD)is a neurodevelopmental condition characterized by difficulties with communication and social interaction,restricted and repetitive behaviors.Previous studies have indicated that individuals with ASD exhibit early and lifelong attention deficits,which are closely related to the core symptoms of ASD.Basic visual attention processes may provide a critical foundation for their social communication and interaction abilities.Therefore,this study explores the behavior of children with ASD in capturing attention to changes in topological properties.Methods Our study recruited twenty-seven ASD children diagnosed by professional clinicians according to DSM-5 and twenty-eight typically developing(TD)age-matched controls.In an attention capture task,we recorded the saccadic behaviors of children with ASD and TD in response to topological change(TC)and non-topological change(nTC)stimuli.Saccadic reaction time(SRT),visual search time(VS),and first fixation dwell time(FFDT)were used as indicators of attentional bias.Pearson correlation tests between the clinical assessment scales and attentional bias were conducted.Results This study found that TD children had significantly faster SRT(P<0.05)and VS(P<0.05)for the TC stimuli compared to the nTC stimuli,while the children with ASD did not exhibit significant differences in either measure(P>0.05).Additionally,ASD children demonstrated significantly less attention towards the TC targets(measured by FFDT),in comparison to TD children(P<0.05).Furthermore,ASD children exhibited a significant negative linear correlation between their attentional bias(measured by VS)and their scores on the compulsive subscale(P<0.05).Conclusion The results suggest that children with ASD have difficulty shifting their attention to objects with topological changes during change detection.This atypical attention may affect the child’s cognitive and behavioral development,thereby impacting their social communication and interaction.In sum,our findings indicate that difficulties in attentional capture by TC may be a key feature of ASD.展开更多
目的探讨分裂型特质对正常人群注意网络的影响。方法随机选择457名高校本科生,用分裂型人格特质问卷(SPQ)测查得到高分裂型特质组(HSTG)与低分裂型特质组(LSTG);运用注意网络测试(ANT)和成套的神经心理学背景测试评价两组被试者的注意...目的探讨分裂型特质对正常人群注意网络的影响。方法随机选择457名高校本科生,用分裂型人格特质问卷(SPQ)测查得到高分裂型特质组(HSTG)与低分裂型特质组(LSTG);运用注意网络测试(ANT)和成套的神经心理学背景测试评价两组被试者的注意网络功能及神经心理学特点。结果 HSTG的执行控制网络效率低于对照组,差异有统计学意义( t =2.349, P <0.05);HSTG警觉和定向网络效率高于对照组,差异有统计学意义( t =2.502, P <0.05;t =2.553, P <0.05)。结论分裂型特质对正常人群的3个注意网络均有影响。展开更多
文摘Objective Autism spectrum disorder(ASD)is a neurodevelopmental condition characterized by difficulties with communication and social interaction,restricted and repetitive behaviors.Previous studies have indicated that individuals with ASD exhibit early and lifelong attention deficits,which are closely related to the core symptoms of ASD.Basic visual attention processes may provide a critical foundation for their social communication and interaction abilities.Therefore,this study explores the behavior of children with ASD in capturing attention to changes in topological properties.Methods Our study recruited twenty-seven ASD children diagnosed by professional clinicians according to DSM-5 and twenty-eight typically developing(TD)age-matched controls.In an attention capture task,we recorded the saccadic behaviors of children with ASD and TD in response to topological change(TC)and non-topological change(nTC)stimuli.Saccadic reaction time(SRT),visual search time(VS),and first fixation dwell time(FFDT)were used as indicators of attentional bias.Pearson correlation tests between the clinical assessment scales and attentional bias were conducted.Results This study found that TD children had significantly faster SRT(P<0.05)and VS(P<0.05)for the TC stimuli compared to the nTC stimuli,while the children with ASD did not exhibit significant differences in either measure(P>0.05).Additionally,ASD children demonstrated significantly less attention towards the TC targets(measured by FFDT),in comparison to TD children(P<0.05).Furthermore,ASD children exhibited a significant negative linear correlation between their attentional bias(measured by VS)and their scores on the compulsive subscale(P<0.05).Conclusion The results suggest that children with ASD have difficulty shifting their attention to objects with topological changes during change detection.This atypical attention may affect the child’s cognitive and behavioral development,thereby impacting their social communication and interaction.In sum,our findings indicate that difficulties in attentional capture by TC may be a key feature of ASD.
文摘目的探讨分裂型特质对正常人群注意网络的影响。方法随机选择457名高校本科生,用分裂型人格特质问卷(SPQ)测查得到高分裂型特质组(HSTG)与低分裂型特质组(LSTG);运用注意网络测试(ANT)和成套的神经心理学背景测试评价两组被试者的注意网络功能及神经心理学特点。结果 HSTG的执行控制网络效率低于对照组,差异有统计学意义( t =2.349, P <0.05);HSTG警觉和定向网络效率高于对照组,差异有统计学意义( t =2.502, P <0.05;t =2.553, P <0.05)。结论分裂型特质对正常人群的3个注意网络均有影响。
