Hauer Beatrijs J A, Wessel Ineke, Geraerts Elke, Merckelbach Harald, Dalgleish Tim
Department of Clinical Psychological Science, Maastricht University, Maastricht, the Netherlands.
J Abnorm Psychol. 2008 May;117(2):444-53. doi: 10.1037/0021-843X.117.2.444.
Traumatized samples have relative difficulty in generating specific autobiographical memories on a cue word task, compared to nonexposed controls. Simultaneously, trauma is associated with highly specific intrusive trauma memories in day-to-day life. Possibly, day-to-day intrusions and memories generated to cue words rely on different retrieval processes, with the former dependent on close associations between retrieval cues and specific memory representations (direct retrieval), and the latter on iterative retrieval cycles through a hierarchical memory system (generative retrieval). This study investigated this distinction using two versions of the cue word task, designed to promote generative and direct retrieval, respectively, in participants with or without a history of child sexual abuse (CSA). The data demonstrated that CSA participants were less specific than nonabused controls to generative retrieval cues, but this difference disappeared with direct retrieval cues. This interaction was stronger in CSA participants with relatively greater posttraumatic stress and remained significant when participants with past or current major depressive disorder were excluded and also when only those participants with corroborated CSA were included.
与未受创伤的对照组相比,受过创伤的样本在基于线索词任务生成特定的自传体记忆方面相对困难。同时,创伤与日常生活中高度特定的侵入性创伤记忆有关。可能的情况是,日常的侵入性记忆和根据线索词生成的记忆依赖于不同的检索过程,前者依赖于检索线索与特定记忆表征之间的紧密关联(直接检索),而后者依赖于通过分层记忆系统的迭代检索循环(生成性检索)。本研究使用两种版本的线索词任务对这一区别进行了调查,这两种任务分别旨在促进有或没有儿童性虐待(CSA)史的参与者进行生成性检索和直接检索。数据表明,CSA参与者对生成性检索线索的特异性低于未受虐待的对照组,但这种差异在直接检索线索下消失了。在创伤后应激相对较大的CSA参与者中,这种相互作用更强,当排除有过去或当前重度抑郁症的参与者时,以及仅纳入有确凿CSA证据的参与者时,这种相互作用仍然显著。