Study on numerical distance effect in amblyopic children aged from 6 to 13
10.3760/cma.j.issn.1674-6554.2016.12.016
- VernacularTitle:6～13岁弱视儿童数字距离效应的研究
- Author:
Min CUI
;
Na AN
;
Tao FU
;
Qing SU
;
Yunkun MO
;
Junfa LI
- Keywords:
Amblyopic children;
Numerical processing;
Numerical distance effect;
Develop-ment
- From:
Chinese Journal of Behavioral Medicine and Brain Science
2016;25(12):1133-1137
- CountryChina
- Language:Chinese
-
Abstract:
Objective To investigate numerical distance effect of numerical processing in amblyopic children aged from 6 to 13. Methods 46 amblyopic children and 43 control children with normal sight were divided into 3 groups respectively:7Y group (6~8 years old),9Y group (9~10 years old) and 12Y group (11~13 years old). The numerical comparison task (judging the magnitude of number) was used in this study and error rate( ER) and reaction times ( RTs) were recorded. Results ( 1) RTs of judging the num-ber 4 (7Y group (995±100)ms,9Y group (964±141)ms,12Y group (701±125)ms) were significant lon-ger(P<0.05) than RTs of judging the number 1((882±140)ms,(790±119)ms,(550±41)ms) in 3 control groups;RTs of judging the number 6((968±116)ms,(918±126)ms,(712±125)ms) were significant lon-ger(P<0.05) than RTs of judging the number 9((862±121)ms,(774±151)ms,(625±141)ms). (2) In the 12Y group of amblyopic children:RTs of judging the number 4((942±107)ms) were significant longer (P<0.05) than RTs for judging the number 1((847±136)ms). (3) No developmental significant difference was found neither within the control children nor within amblyopic children using the RTs D-values which gained by the RTs of far distant numbers ( 1/2/8/9 ) minus close distant numbers ( 3/4/6/7 ) . Conclu-sion Only 12Y group of amblyopic children show numerical distance effect in subitizing(>5).The develop-ment of numerical processing in amblyopic children is slower than that in children with normal sight.
