自我控制对2型糖尿病患者自我损耗的影响

Effect of self-control on the ego depletion in patients with type 2 diabetes mellitus

目的探索2型糖尿病（type2diabetesmellitus，T2DM）患者的自我控制对自我损耗的影响。方法采用自我损耗双任务范式进行研究。本研究为2×2组间设计，将确诊的T2DM患者设为研究组（n=30）；另外选取健康志愿者设为正常对照组（nm30）。然后采用抽签法将每组完全随机分配到有损耗组和无损耗组，每组各30例。有损耗组完成经典Stroop任务；无损耗组完成一致性Stroop任务，然后用Simon任务考察两组研究对象的自我损耗效应。结果T2DM组在协同条件[（8．73±6．09）个，（5．10±4．35）个，E（1,58）=7．125，P=0．010]和非协同条件[（10．60±10．10）个，（3．97±3．97）个，E（1,58）=10．890，P=0．002]中的反应错误次数均高于正常对照组，差异有统计学意义；T2DM组在协同条件[（673．33±83．54）ms，（663．18±123．27）ms，F（1,58）=0．139，P=0．711]和非协同条件[（691．83±107．75）ms，（644．07±106．69）ms，F（1,58）=2．964，P=0．091]中的反应时长均高于正常对照组，差异无统计学意义。损耗组在协同条件[F（1,58）=0．821，P=0．369]和非协同条件[F（1,58）=0．231，P=0．632]中的反应错误次数均高于无损耗组,差异无统计学意义；损耗组在协同条件[F（1,58）=1．623，P=0．208]和非协同条件[F（1,58）=0．806，P=0．373]中的应时长均高于无损耗组，差异无统计学意义；被试类型与试验条件的交互作用不显著。结论T2DM患者处于慢性损耗状态，自我控制会增加自我损耗，使其自控能力下降，导致管理有一定困难。

Objective To explore the effect of self-control deficit on ego depletion in patients with type 2 diabetes mellitus （T2DM） on the basis of ego-depletion theory. Methods Dual-Task Paradigms were used to manipulate self-control depletlon.This study employed 2~2 between-study design.T2DM patients were chosen as the study group, and healthy volunteers were selected as normal control group, with 30 cases in each group.They were randomly assigned to depleted group （30 cases ） or non-depleted group （30 cases ）. Depleted group completed classical Stroop task, whereas, non-depleted group completed conformant Stroop task.Finally, the ego-depletion effects were investigated by Simon Task. Results The number of reaction errors in the T2DM group was significantly greater than that in the normal group under the compatible condition （ （8.73±6.09） vs （ 5.10±4.35 ）, F（1,58） = 7.125, P= 0.010）, and the incompatible condition（ （ 10.60± 10.10） vs （3.97＋3.97）, F（1,58）= 10.890, P=0.002）.The reaction time in the T2DM group was longer than that in the normal group under the compatible condition （ （ 673.33 ± 83.54 ） ms vs （ 663.18 ±123.27 ） ms, F（1,58） = 0.139, P= 0.711 ） and the incompatible condition （ （ 691.83±107.75 ） ms vs （ 644.07 ± 106.69 ） ms, F（1,58） = 2.964, P= 0.091 ）, however, the differences were not statistically significant.The number of reaction errors in the depleted group was more than that in the non-depleted group under the compatible condition （F（1,58） = 0.821, P= 0.369） ,and the incompatible condition（ F（1,58） = 0.231, P= 0.632） ,but the difference was not statistically significant.The reaction time in the depleted group was longer than that in the non-depleted group under the compatible condition（F（1,58） = 1.623, P= 0.208 ）, and the incompatible condition （F（ 1,58） = 0.806, P = 0.373）, the differences were not statistically significant.The interactions between participants type and experimental conditions were not significant. Conclusion The patients with T2DM are in a state of chronic depletion and self-control will potentially aggravate ego depletion, which leads to decline in self-control ability and difficulties in self-management.