[Event-related potentials in Chinese characters semantic priming and arithmetic tasks: comparative study between healthy children and children with cognitive disorder].
OBJECTIVE
To explore the cognitive psychological process of healthy children and children with cognitive disorder.


METHODS
Single Chinese character semantic priming and arithmetic tasks were delivered to 20 8-year-old healthy children, and 20 11-year-old healthy children, and 30 children with attention deficit hyperactivity disorder, 23 children with epilepsy, and 22 age-matched normal children as controls. Electroencephalography was used. Event-related potential was distilled by BESA software.


RESULTS
(1) During the Chinese character semantic priming, the amplitudes of N2 toward the non-related words and pseudo-words in the 8-year-old group were 12.1 microV and 11.7 microV respectively, both significantly larger than those of the 11-year-old group (3.7 microV and 4.8 microV, respectively, both P<0.05). The amplitudes of N2 and P2 toward the non-related words and pseudo-words among the children with attention deficit hyperactivity disorder were both significantly lower than those in the healthy children (both P<0.05). (2) During the arithmetic task, the latency values of P2 and P3 of addition, subtraction, and multiplication in the 8-year-old group of healthy children were all significantly longer than those of the 11-year-old group of healthy children (all P<0.05). The P3 latency of the children with epilepsy was significantly longer than that of the healthy children (P<0.05).


CONCLUSIONS
Chinese character and arithmetic cognitive waves are steady. ERP can be used to estimate the healthy children's personality index. Quantitative indicators are helpful in diagnosis and treatment of cognitive and learning disorders.
Dong
Xuan
X
Department of Neuroscience, the Third Affiliated Hospital of Suzhou University, Changzhou 213003, China.
Wang
Su-hong
SH
Yang
Yi-lin
YL
Ren
Yan-ling
YL
Meng
Ping
P
Yang
Yu-xia
YX
D016022:Case-Control Studies; D002648:Child; D002681:China; D003072:Cognition Disorders / Q000503:physiopathology* / Q000523:psychology*; D004569:Electroencephalography; D005071:Evoked Potentials; D005260:Female; D006801:Humans; D008297:Male; D008433:Mathematics; D012659:Semantic Differential; D013647:Task Performance and Analysis