视觉记忆的海拔效应——来自配对联想学习任务的证据

Elevation effect on visual memory——evidence from paired associates learning task

为考察低氧环境对视觉记忆的影响,并探测这种影响的海拔效应。本研究以剑桥认知系统(CAN-TAB)为工具,采用配对联想学习任务(PAL),从平均海拔3000m、3800m和4500m处分别选取39名、38名和43名藏族大学生参与本实验,在4个观测指标上对实验数据进行了分析。结果发现:选取的4个观测指标上,不同海拔高度被试的配对联想学习能力差异均不显著,PAL成功时的平均错误F(2,117)=0.60,P>0.05;PAL成功时的平均试验F(2,117)=1.22,P>0.05;PAL错误总数(调整)F(2,117)=0.60,P>0.05;PAL试验总数(调整)F(2,117)=1.08,P>0.05。在本研究条件下,没有发现视觉记忆的海拔效应。但这一结果还需要在后续研究中加以验证。

To investigate the effect of hypoxia on visual memory and to study the dependences of this effect on el-evation,in this paper,using the Cambridge Cognitive System（CANTAB） as a tool and paired associates learning（PAL） as a task,39,38 and 43 Tibetan undergraduates,from places with mean elevations of 3000 m,3800 m,and4500 m above sea level,respectively,were selected and the experimental data were analyzed in terms of four ob-servation indices.The results showed that there were no significant differences in paired associates learning abili-ty between undergraduates from different altitudes.When PAL successes,the average error F（2,117） and aver-age test are 0.60 and 1.22 with p〉0.05.While,the total number of errors（adjusted） F（2,117） and the total num-ber of tests（adjusted） F（2,117） are 0.60 and 1.08 with p〉0.05.In this study,we did not found the effect of eleva-tion on visual memory for undergraduates from different altitudes.However,this result needs to be further validat-ed in the future study.