Marquardt Craig A, Pokorny Victor J, Disner Seth G, Nelson Nathaniel W, McGuire Kathryn A, Sponheim Scott R
Department of Psychiatry and Behavioral Sciences, University of Minnesota.
Minneapolis Veterans Affairs Health Care System, Minneapolis, Minnesota.
Clin Psychol Sci. 2022 May;10(3):499-513. doi: 10.1177/21677026211025018. Epub 2021 Jul 7.
Among individuals with posttraumatic stress disorder (PTSD), verbal learning and memory are areas of weakness compared with other cognitive domains (e.g., visuospatial memory). In this study, previously deployed military veterans completed clinical assessments of word memory and vocabulary ( = 243) and a laboratory task measuring encoding, free recall, repetition priming, and recognition of words ( = 147). Impaired verbal memory was selectively related to reexperiencing symptoms of PTSD but was not associated with other symptom groupings or blast-induced traumatic brain injury. Implicit priming of response times following word repetition was also unrelated to clinical symptoms. Instead, slowed response times during encoding explained associations between reexperiencing and memory performance. These findings are consistent with alterations in attentional control explaining PTSD-related verbal-memory deficits. Such findings have implications for understanding trauma-focused psychotherapy and recovery, which may depend on efficient attentional processing of words to alter posttraumatic reexperiencing symptoms.
在患有创伤后应激障碍(PTSD)的个体中,与其他认知领域(如视觉空间记忆)相比,言语学习和记忆是较为薄弱的方面。在本研究中,曾服役的退伍军人完成了单词记忆和词汇的临床评估(n = 243),以及一项测量单词编码、自由回忆、重复启动和识别的实验室任务(n = 147)。言语记忆受损与PTSD的重新体验症状有选择性关联,但与其他症状分组或爆炸所致创伤性脑损伤无关。单词重复后反应时间的内隐启动也与临床症状无关。相反,编码过程中反应时间的减慢解释了重新体验与记忆表现之间的关联。这些发现与注意力控制的改变解释了与PTSD相关的言语记忆缺陷相一致。此类发现对于理解以创伤为重点的心理治疗和康复具有启示意义,这可能取决于对单词进行有效的注意力加工以改变创伤后重新体验症状。