Effects Of Hypoxia On Spatial-Number Association Of Response Codes In Plateau

The Qinghai-Tibet Plateau is the highest plateau in the world.Since ancient times,the harsh climate led to a lack of people.With the economic prosperity and the improvement of buildability in the Qinghai-Tibet society,more and more central china migrants have entered the highest Plateau.However,long-term exposure to low oxygen will lead to altitude mountain sickness,decrease,or even damage to brain function,weakened cognitive performance conclude decreased digital processing ability,spatial working memory impairment,and other abilities.From the perspective of implicit spatial working memory and number processing,this paper will conduct a detailed multivariate study using four SNARC related tasks at high-altitude,and examine the existence of SNARC effect at high-altitude,the effect of different background factors on SNARC effect,the interaction between the effect of executive function on SNARC effect and the STROOP effect.Experiment 1 is the SNARC test experiment in horizontal and vertical background,aiming to verify the feasibility of high-altitude SNARC tests in different background.The results showed that high-altitude subjects could also produce significant SNARC effects in both horizontal and vertical dimensions,with p <.001 in all four dimensions.It shows that SNARC is feasible to study at high-altitude,and there are differences in partial effect size and the total response of subjects at different altitudes.Experiment 2 is the spatial 2-BACK executive function test,intended to distinguish different spatial executive ability groups.The results showed that there were significant differences in spatial executive ability between different education groups,p <.01;However,there was no significant difference in spatial executive ability between the same education group,p=.508.This study provided a cognitive baseline for the evaluation of cognitive function factors in subsequent studies.Experiment 3 is SNARC full numbers digital line test,which intends to study the changes of SNARC effect under high altitude digital distance,memory load and executive function.The results showed that the load factor had significant influence on the SNARC effect size in the high-altitude group,p <.001;With the same executive function,when the altitude affects the SNARC task response,the effect size is not affected,p=.043,but the parity tendency is significantly different,p <.001.At the same altitude,the stronger the executive function,the more stable the SNARC effect,p <.05;In the three groups of subjects,the load,executive function and digital distance all affect the SNARC effect at high altitude.It is proved logically that the hypoxia factor affects the late parity judgment stage of the numbers in the SNARC task.Experiment 4 is SNARC＿STROOP paradigm interaction experiment,intended to explore the interaction effect between the traditional high-altitude cognitive paradigm and SNARC task.The results showed that the SNARC＿STROOP main effect was significant at high altitude,p <.001,and the interaction effect was not significant,indicating that SNARC task and STROOP task had differences in stimulus attributes,and the experimental results were consistent with the DO theory.In conclusion,plateau hypoxic environment is detrimental to cognition,which is specifically manifested as a decline in multiple response indexes of digital-spatial coding tasks.This study uses SNARC tasks to evaluate high-altitude digital spatial relationships and implicit spatial execution ability,which has practical significance and provides new ideas for high-altitude brain cognition research.