Attentional Blink In Children With ADHD

Purposes: The main purpose of this study was to explore the attentional blink of the ADHD children.Methods: According to the method of control study,30 ADHD children and 30 normal children matched with age,gender and intelligence were selected to participate in the experiment.Experiment 1: 2(group)× 7(T2 presents location)mixed task,RSVP paradigm was used to measure the attentional blink in ADHD children at baseline;Experiment 2A: 2(group)× 2(T1 presents time)× 4(T2 presents location)mixed task.Experiment 2B: 2(group)× 2(T2 presents time)× 4(T2 presents location)mixed task.Respectively control the T1 presents time and T2 presents time to measure the attentional blink in ADHD children;Experiment 3A: 2(group)× 2(T1 interference type)× 4(T2 presents location)mixed task.Experiment 3B: 2(group)× 2(T2 interference type)× 4(T2 presents location)mixed task.Respectively control the T1 interference type and T2 interference type to measure the attentional blink in ADHD children.Results:(1)In experiment 1: There was no significant difference in T1 and T2 recognition rate between two groups of children(t=-1.549,p=0.157;F=3.080,p=0.082).(2)In experiment 2: The increase in T1 presents time does not affect the attentional blink(F=0.129,p=0.720).The increase in T2 presents time can alleviate the attentional blink(F=10.050,p<0.01).(3)In experiment 3: The interference of T1 will not affect the attentional blink(F=0.332,p=0.565).The interference of T2 can aggravate the attentional blink(F=21.264,p<0.001).Conclusion:(1)ADHD children and normal children no significant difference in T1 recognition.(2)ADHD children and normal children no significant difference in T2 recognition,but ADHD children have larger amplitude and longer duration in attentional blink.(3)The increase in target stimulation presents time can alleviate the attentional blink of the ADHD children.(4)The interference of target stimulation can aggravate the attentional blink of the ADHD children.