Objective To compare the characteristics and differences of the activation of the brain regions between the digital memory span task and digital working memory task.

目的比较数字记忆广度与数字工作记忆的脑区激活特点与差异。

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Attention-span test, digit memory test, two-digital numbers list and profile of mood states(POMS) were used to test the ship crews and coast-servicemen.

采用数字记忆、注意广度、两位数表测验和情感状态量表（POMS）对两艇艇员在实验前后各进行一次测验，对岸勤组进行一次测验。

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