Authors: Matsumoto, N., Mochizuki, S., Marsh, L., & Kawaguchi, J. Title: Repeated retrieval of generalized memories can impair specific autobiographical recall: a retrieval induced forgetting account
Journal(書誌情報）: Journal of Experimental Psychology: General
doi: https://doi.org/10.1037/xge0001028
論文URL:https://psycnet.apa.org/record/2021-07380-001
Abstract: Overgeneral autobiographical memory (OGM) refers to the tendency toward increased general memory and reduced specific memory recall, observed in various psychiatric disorders. Previous studies have suggested that inhibitory processes involved in resolving competition between competing memories may reduce memory specificity via retrieval-induced forgetting (RIF). However, it remains unclear whether the repeated retrieval of general memories can induce forgetting of specific memories. We adapted the RIF paradigm to address this question across three experiments. Participants first generated specific memories in response to positively and negatively valenced cue words. They then generated and repeatedly retrieved general memories for half of the cue words. Recall for all of the original specific memories was later tested. Experiment 1 showed that the retrieval practice of general memories reduced the recall of associated specific memories, regardless of cue valence. Experiment 2 demonstrated that this forgetting effect was cue independent, occurring even when novel retrieval cues were used on the final test. Experiment 3 suggested that this effect was competition dependent, finding a greater RIF effect following practice of general memories (high competition) than following a cue-color association task (low competition). These results suggest that repeated retrieval of general memories suppressed specific memory representations through RIF. These findings are discussed in relation to hierarchical models of autobiographical memory, mechanisms that maintain overgeneral memory tendencies, and the role of retrieval in shaping autobiographical memory.
著者Contact先の email: noborum[at]shinshu-u.ac.jp （[at]を@に変更してください。）(松本 昇)
日本語によるコメント：大うつ病などの精神疾患に多く観察される自伝的記憶の概括化や反すうは、特定的／具体的な認知処理スタイルから概括的／抽象的な認知処理スタイルへのシフトが生じていることを表します。しかしながら、その根底にあるメカニズムは明らかではありませんでした。この研究では、概括的な記憶／思考を繰り返すことによって、関連する特定の自伝的エピソードに検索誘導性忘却が生じることを実証しました。

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