Zhonghua yu fang yi xue za zhi [Chinese journal of preventive medicine] · 2001
[The event-related potential characteristics of reading disabilities in children under condition of continuous performance test].
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Jing J, Morinaga R, Zhang X
Аннотация
OBJECTIVE: To investigate the characteristics of event-related potential (ERP) of reading disabilities (RD) in children under the condition of continuous performance test (CPT) and their possible neurological basis.
METHODS: Using ERP technique with CPT conditions, such as semantics, direction and pitch identification, 16 RD boys and their matched normal boys were tested. A comparative study was conducted to analyze these indicators of accuracy, reaction time, false alarm, wave amplitude and latency between the two groups.
RESULTS: Among the three kinds of identification tests, RD children had lower accuracy in pitch identification (65.4 +/- 15.9) to (78.5 +/- 12.6) and lower reaction speed (557.0 +/- 97.8) ms to (493.0 +/- 47.8) ms, as compared to the control group (P < 0.05). The false alarm rate was much higher in RD children than that in the control group with unattended-high simulation (1.1 +/- 0.7)% to (0.6 +/- 0.3)%, P < 0.05. Moreover, the P300 amplitude decreased with direction of (20.8 +/- 7.3) to (27.7 +/- 8.3) microV and pitch of (9.1 +/- 4.3) to (14.6 +/- 8.3) microV, P < 0.05. And, the latency delayed in pith of (571 +/- 78) ms to (512 +/- 62) ms, semantic cognition processing negativity Nd of (398 +/- 76) ms to (342 +/- 67) ms, pitch Nd of (373 +/- 56) ms to (327 +/- 53) ms, P < 0.05.
CONCLUSIONS: There was defect in selective attention of RD children, which suggested relationship between dysfunction of frontal-basal ganglia circle and RD. The ERP combined with CPT was much better than that with single target stimulation to indicate children's cognitive characteristics.
METHODS: Using ERP technique with CPT conditions, such as semantics, direction and pitch identification, 16 RD boys and their matched normal boys were tested. A comparative study was conducted to analyze these indicators of accuracy, reaction time, false alarm, wave amplitude and latency between the two groups.
RESULTS: Among the three kinds of identification tests, RD children had lower accuracy in pitch identification (65.4 +/- 15.9) to (78.5 +/- 12.6) and lower reaction speed (557.0 +/- 97.8) ms to (493.0 +/- 47.8) ms, as compared to the control group (P < 0.05). The false alarm rate was much higher in RD children than that in the control group with unattended-high simulation (1.1 +/- 0.7)% to (0.6 +/- 0.3)%, P < 0.05. Moreover, the P300 amplitude decreased with direction of (20.8 +/- 7.3) to (27.7 +/- 8.3) microV and pitch of (9.1 +/- 4.3) to (14.6 +/- 8.3) microV, P < 0.05. And, the latency delayed in pith of (571 +/- 78) ms to (512 +/- 62) ms, semantic cognition processing negativity Nd of (398 +/- 76) ms to (342 +/- 67) ms, pitch Nd of (373 +/- 56) ms to (327 +/- 53) ms, P < 0.05.
CONCLUSIONS: There was defect in selective attention of RD children, which suggested relationship between dysfunction of frontal-basal ganglia circle and RD. The ERP combined with CPT was much better than that with single target stimulation to indicate children's cognitive characteristics.