Development of selective attention in youngsters aged from 9 to 14.

JIANG Yun-qiu; YANG Hai-yan; MO Yun-kun; YU Yang; WANG Yu; LI Jun-fa; LUO Yan-lin.

doi:10.11852/zgetbjzz2015-23-12-08

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Chinese Journal of Child Health Care ›› 2015, Vol. 23 ›› Issue (12) : 1257-1259. DOI: 10.11852/zgetbjzz2015-23-12-08

Development of selective attention in youngsters aged from 9 to 14.

JIANG Yun-qiu¹,YANG Hai-yan²,MO Yun-kun³,YU Yang¹,WANG Yu⁴,LI Jun-fa⁴,LUO Yan-lin⁴.

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Abstract

Objective To investigate the development of selective attention in youngsters aged from 9 to 14.Methods Totally 87 youngsters aged from 9 to 14 participated and were divided into 3 groups:9 years old group (29),11 years old group (37) and 13 years old group (21).The study consisted of 3 experiments with ascending difficulty:experiment 1(judging the location of number),experiment 2(judging the value of number) and experiment 3(judging the value of specific number).Reaction times (RTs) and error rate (ER) were recorded.Results 1)RTs increased with the difficulty of experiments,while RTs decreased with age.2)ER increased with the difficulty of experiments.In expeaiment 1,ER of 11 years old group [(2.25±0.58) %] was the highest [9 years old group (0.86±0.25) %,13 years old group (1.09±0.33) %].In experiment 3,ER decreased with age.Difference between every two groups was significant.3)The distance effect of number processing in experiment 2 showed that RTs were significantly different between far numbers (1/2/8/9) and close numbers (3/4/6/7) in each age group.No significant difference was found in the D-values between the RTs of far numbers and close numbers between every two groups.Conclusions The speed of selective attention keeps developing from age 9~14,while a fluctuation phase in ER may occur at age 11~12.The distance effect keeps stable from age 9~14.

Key words

youngster / selective attention / development / number cognition

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JIANG Yun-qiu,YANG Hai-yan,MO Yun-kun,YU Yang,WANG Yu,LI Jun-fa,LUO Yan-lin.. Development of selective attention in youngsters aged from 9 to 14.[J]. Chinese Journal of Child Health Care. 2015, 23(12): 1257-1259 https://doi.org/10.11852/zgetbjzz2015-23-12-08

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