视觉选择性注意对注意缺陷多动障碍儿童数字认知加工的影响

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1、信息。关键词：内源性注意；外源性注意；ADHD；数字加工距离效应；数字加工SNARC效应IIAbstractNumberplaysanimportantroleinhumam'scommonwork,lifeandstudy.Howdopeoplecarryonthenumberprocessingandfurthermentalrepresentation?Whatfactorsaffecttheprocessofmentalrepresentationaboutnumber?Theseproblemshavealwaysbeenthef

2、lourishingfieldsforresearchers.Mostofthestudiesaboutchildren'sabilitiesofnumericalcognitiveprocessinghaveshownthat,children'snumberprocessingspeedincreasedandreactiontimedecreasedwithageadded.Peoplegenerallyoverlookedaproblemintheresearchbefore,itaboutthedifferentcharacter

3、isticsofvisualselectiveattentionmayaffectedthenumberprocessing.Attentiondeficithyperactivitydisorder(ADHD)childrenasakindofspecialchildren,soabviousdefectsaboutattentionandcognitivedisorderarethemainproblems.Thethesisconsistsoftwostudies.Study1investigatedthevisualselectiv

4、eattentionimpactonnumberdistanceeffectofADHDchildren'snumberprocessing.Mixedexperimentaldesignmethodwasusedinthestudy,2(clueseffectiveness:effectivetip/invalidtip)×2(numericalcomparison:smallnumber/largernumber)×4(numberdistance:1/2/3/4)×7(grade:preschooltosixthgrade).Nume

5、ricalcomparisonwasusedastaskunderendogenousandexogenousattentionsrespectively.Study2investigatedthevisualselectiveattentioninfluencedonADHDchildren'snumberprocessingSNARCeffect.Mixedexperimentaldesignmethodwasusedinthestudy,2(clueseffectiveness:effectivetip/invalidtip)×2(r

6、eactionhand:lefthandreaction/righthandreaction)×4(numericalcomparison:1isthenumber1,2/2isthenumber3,4/3isthenumber6,7/4isthenumber8/9)×2(grade:fourthgradeandsixthgrade).Odd/evenjudgementwasusedastaskunderendogenousandexogenousattentionsrespectively.Theresultsshowedthat,num

7、berdistanceeffectexistedinADHDchildren’snumericalcomparisontasknomatterundertheconditionofendogenousorexogenousattentions,buttheagewaslaterthannormalchildren.Undertheconditionofendogenousattentions,thefifthgrade’sADHDchildrenhadnumberprocessingSNARCeffectwitheffectiveclues

8、inodd/evenjudgmenttasks,theagewaslaterthannormalchildren,thefourthtosixthgrade’sADHDchild