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目的:通过实验方法探讨A型和B型人格男性对脑力任务的主观负荷评价的差异。方法:具有A型和B型人格的男性被试各40名做2项脑力任务:任务1为简单计算;任务2为Sternberg记忆搜索任务,每项任务持续5分钟。然后被试使用3个主观评价技术:库柏-哈柏修正法(MCH)、主观负荷评估技术(SWAT)和NASA任务负荷指数量表(NASA-TLX)来分别判断2项任务的脑力负荷大小。结果:A、B2组被试在两项脑力任务中,在具有同等的执行绩效情况下,具有A型人格男性的3个脑力负荷主观量表得分除MCH的任务1外均高于具有B型人格的男性(MCH任务1:6.5±0.5/5.9±0.5,t=1.67,P=0.083;任务2:7.3±0.5/6.3±0.4,t=2.72,P=0.024;SWAT任务1:75.3±5.8/58.2±5.3,t=5.04,P<0.001;任务2:68.8±6.4/59.1±6.6,t=2.75,P=0.022;NASA-TLX任务1总分64.8±6.7/46.2±7.1,t=3.15,P=0.014;任务2总分:58.8±4.7/45.6±5.7,t=3.36,P=0.009)。结论:A型人格男性对脑力任务的主观负荷评价较高。
OBJECTIVE: To explore the differences in subjective assessment of mental tasks between type A and type B men through experimental methods. METHODS: Male subjects with Type A and Type B personality, each of 40 subjects, performed 2 mental tasks: task 1 was a simple calculation; task 2 was Sternberg memory search task, each task lasting 5 minutes. The subjects then used three subjective assessment techniques: Cooper-Habermann’s correction method (MCH), subjective assessment of load (SWAT), and NASA-TLX to determine the mental workload of two tasks . Results: In the two mental tasks of group A and group B2, under the same performance, the mental workload subjective scores of M-type subjects with A-type personality scores were higher than those with M Personality Person (MCH Task 1: 6.5 ± 0.5 / 5.9 ± 0.5, t = 1.67, P = 0.083; Task 2: 7.3 ± 0.5 / 6.3 ± 0.4, t = 2.72, P = 0.024; SWAT Task 1: 75.3 ± 5.8 /58.2 ± 5.3, t = 5.04, P <0.001; Task 2: 68.8 ± 6.4 / 59.1 ± 6.6, t = 2.75, P = 0.022; NASA-TLX Task 1 total score 64.8 ± 6.7 / 46.2 ± 7.1, t = 3.15 , P = 0.014; Task 2 total score: 58.8 ± 4.7 / 45.6 ± 5.7, t = 3.36, P = 0.009). Conclusion: Type A personality men have a higher subjective assessment of mental tasks.