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Schema-Driven Involuntary Categoric Memory in Depression

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Abstract

Background

Overgeneral categoric memory is known as a vulnerability factor for depression, yet increased retrieval of categoric memories among depressed individuals has been observed in voluntary but not involuntary retrieval tasks. Here we propose that, increased categoric memory occurs during involuntary memory tasks when cued by schema-related stimuli, which tend to activate dysfunctional and negative self-schema in depression.

Methods

A vigilance task measuring involuntary memory was administered to 27 dysphoric, 26 past depressed, and 27 healthy control participants. Participants also responded to several questions measuring each memory characteristic (e.g., evoked emotion) and a dysfunctional schema scale.

Results

Results supported the hypothesis that dysphoric and past depressed groups reported more involuntary categoric memories for schema-related (particularly negative) stimuli relative to a healthy control group. Dysfunctional schema score was positively correlated with the number of involuntary categoric memories retrieved following schema-related negative stimuli. Involuntary categoric memory for schema-related stimuli was related to negative evoked emotion, and dysphoric participants experienced more negative emotion in response to positive stimuli.

Discussion and Conclusion

These findings suggest that schema-based involuntary categoric memory may be vulnerable to the persistence and relapse of depression.

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Data Availability

All the data is available from OSF (https://osf.io/kvqxe/).

Notes

  1. In a supplementary file, we noted the results of linear mixed model for evoked emotion as a reference for readers.

  2. There was an observable group difference in the number of specific memories in the schema-unrelated condition. However, a two-way ANOVA failed to detect any significant group differences. While additional analyses of group differences in specific memory in the schema-unrelated condition were also nonsignificant moderate effect sizes were observed between the dysphoric and control group (Ms = 6.33 vs. 2.93, p = .09, d = 0.65) and remitted MDE group and control group (Ms = 5.39 vs. 2.93, p = .24, d = 0.47). In addition, self-reflections of some participants in the dysphoric and past MDE groups reported that they could not ignore the sentences and thus images and thoughts popped into mind. These findings potentially support the lack of cognitive inhibition hypothesis of involuntary memory (Barzykowski et al., 2019a, 2019b), which is worthy of further exploration.

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Acknowledgements

The authors acknowledge Prof. Lia Kvavilashvili and research assistants Mako Komatsu, Mayuko Naduka, Konomi Miyamae, Sakura Kitajima, Yuko Matsumoto, and Yuko Date for their assistance.

Funding

This work was supported by the Japan Society for the Promotion of Science (grant numbers: 18K13344, 21H00947).

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Correspondence to Noboru Matsumoto.

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Conflict of Interest

Noboru Matsumoto, Lynn Ann Watson, Kei Kuratomi declare that they have no conflicts of interest.

Animal Rights

No animal studies were carried out by the authors for this article.

Ethical Approval

All procedures performed in this study were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki Declaration and its later amendments or comparable ethical standards.

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Informed consent was obtained from all individual participants included in the study.

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Supplementary file1 (DOCX 50 KB)

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Matsumoto, N., Watson, L.A. & Kuratomi, K. Schema-Driven Involuntary Categoric Memory in Depression. Cogn Ther Res 47, 52–68 (2023). https://doi.org/10.1007/s10608-022-10329-6

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  • DOI: https://doi.org/10.1007/s10608-022-10329-6

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