Bonebakker A E, Bonke B, Klein J, Wolters G, Stijnen T, Passchier J, Merikle P M
Department of Consultive Neurology and Psychology, Psychiatric Center Rosenburg, The Hague, The Netherlands.
Mem Cognit. 1996 Nov;24(6):766-76. doi: 10.3758/bf03201101.
Memory for words presented during general anesthesia was studied in two experiments. In Experiment 1, surgical patients (n = 80) undergoing elective procedures under general anesthesia were presented shortly before and during surgery with words via headphones. At the earliest convenient time after surgery (within 5 h) and 24 h later, memory was tested by asking patients to complete auditorily presented word stems with the first word that came to mind and to leave out words they remembered having heard earlier (exclusion task). Moreover, patients were requested to perform a "yes/no" forced-choice recognition task to assess recognition memory for both the pre- and intraoperative words. Memory for the material presented during anesthesia was demonstrated immediately after surgery and 24 h later by means of both tasks. In a second similar experiment (n = 80), the results were replicated. These findings show that anesthetized patients can process information that was presented intraoperatively.
在两项实验中研究了全身麻醉期间呈现的单词记忆。在实验1中，通过耳机在手术前不久和手术期间向接受全身麻醉下择期手术的外科患者呈现单词。在手术后最早方便的时间（5小时内）和24小时后，通过要求患者用脑海中出现的第一个单词完成听觉呈现的词干，并排除他们记得之前听过的单词（排除任务）来测试记忆。此外，要求患者执行“是/否”强制选择识别任务，以评估对术前和术中单词的识别记忆。通过这两项任务，在手术后立即和24小时后都证明了对麻醉期间呈现材料的记忆。在第二个类似实验（n = 80）中，重复了这些结果。这些发现表明，麻醉患者可以处理术中呈现的信息。
