中华行为医学与脑科学杂志
中華行為醫學與腦科學雜誌
중화행위의학여뇌과학잡지
CHINESE JOURNAL OF BEHAVIORAL MEDICINE AND BRAIN SCIENCE
2012年
11期
1022-1024
,共3页
朱填莉%张茜茹%廖扬%刘旭峰
硃填莉%張茜茹%廖颺%劉旭峰
주전리%장천여%료양%류욱봉
模拟失重%心理旋转%空间定向%头低位
模擬失重%心理鏇轉%空間定嚮%頭低位
모의실중%심리선전%공간정향%두저위
Weightlessness simulation%Mental rotation%Space orientation%Head-down tilt
目的 通过72h-6°头低位卧床(HDT)模式,探讨模拟失重条件对心理旋转加工速度的影响,为进一步揭示失重造成的认知功能变化提供依据.方法 16名健康男性被试在72h模拟失重条件下(9:00至第4天21:00,从第1天21:00开始卧床),采用自身前后对照设计,分别在每日早9:00与晚21:00进行手型图片心理旋转测试(共8次),分析比较心理旋转速度随模拟失重时间的变化.结果 以每个时间点每名受试者的心理旋转反应时为自变量,旋转角度为因变量进行线性回归分析,表明随着模拟失重时间的延长,代表非旋转阶段加工速度的截距(回归方程常数项)增大,但差异无统计学意义(F(3,14)=0.551,P=0.650);代表旋转阶段加工速度的斜率(回归方程的回归系数)增大,且差异有统计学意义(F(3,14)=4.338,P=0.009).截距和斜率均在HDT 3d中呈现倒“U”型,且在第2天达到最大.结论 模拟失重能影响个体的心理旋转速度,并且对旋转阶段加工速度的影响尤为明显.
目的 通過72h-6°頭低位臥床(HDT)模式,探討模擬失重條件對心理鏇轉加工速度的影響,為進一步揭示失重造成的認知功能變化提供依據.方法 16名健康男性被試在72h模擬失重條件下(9:00至第4天21:00,從第1天21:00開始臥床),採用自身前後對照設計,分彆在每日早9:00與晚21:00進行手型圖片心理鏇轉測試(共8次),分析比較心理鏇轉速度隨模擬失重時間的變化.結果 以每箇時間點每名受試者的心理鏇轉反應時為自變量,鏇轉角度為因變量進行線性迴歸分析,錶明隨著模擬失重時間的延長,代錶非鏇轉階段加工速度的截距(迴歸方程常數項)增大,但差異無統計學意義(F(3,14)=0.551,P=0.650);代錶鏇轉階段加工速度的斜率(迴歸方程的迴歸繫數)增大,且差異有統計學意義(F(3,14)=4.338,P=0.009).截距和斜率均在HDT 3d中呈現倒“U”型,且在第2天達到最大.結論 模擬失重能影響箇體的心理鏇轉速度,併且對鏇轉階段加工速度的影響尤為明顯.
목적 통과72h-6°두저위와상(HDT)모식,탐토모의실중조건대심리선전가공속도적영향,위진일보게시실중조성적인지공능변화제공의거.방법 16명건강남성피시재72h모의실중조건하(9:00지제4천21:00,종제1천21:00개시와상),채용자신전후대조설계,분별재매일조9:00여만21:00진행수형도편심리선전측시(공8차),분석비교심리선전속도수모의실중시간적변화.결과 이매개시간점매명수시자적심리선전반응시위자변량,선전각도위인변량진행선성회귀분석,표명수착모의실중시간적연장,대표비선전계단가공속도적절거(회귀방정상수항)증대,단차이무통계학의의(F(3,14)=0.551,P=0.650);대표선전계단가공속도적사솔(회귀방정적회귀계수)증대,차차이유통계학의의(F(3,14)=4.338,P=0.009).절거화사솔균재HDT 3d중정현도“U”형,차재제2천체도최대.결론 모의실중능영향개체적심리선전속도,병차대선전계단가공속도적영향우위명현.
Objective To explore the effect of weightlessness simulation on processing speed of mental rotation of males in 72 h head-down tilt,in order to further reveal human performance changes caused by weightlessness.Methods During 72 h weightlessness simulation (9 am day 1 to 9 pm day 4,head-down tilt started from 9 pm day 1),16 male subjects were processed speed of rotation data by " hand" picture mental rotation (test 8 times),using self cross-references design,and the variation of processing speed of mental rotation by duration was analyzed.Results The linear regression analysis showed,the reaction time of each time point for each subject as the independent variable,the angle of rotation as the dependent variable,with the extension of simulated weightlessness time.The intercept(constant term of the regression equation),indicating the processing speed of non-rotation,were gradually increased with HDT time,but didn(t) reached significantly difference (F(3,14) =0.551,P =0.650) ;the slope(Regression coefficient of the regression equation),indicating the processing speed of rotation.were gradually increased with HDT time,and reached the significantly difference (F(3,14) =4.338,P =0.009).The value of intercept and slope was like upside-down U in three days,and reached the highest value at day 2.Conclusion Weightlessness simulation have affection on the speed of mental rotation,especially on the rotation speed.
