
Evidence for General Long-Term Memory Impairment Following SARS-CoV-2 Infection

Changes in memory function in adults following SARS-CoV-2 infection: findings from the Covid and Cognition online study.
Abstract
Recommendation: posted 08 May 2025, validated 08 May 2025
Sreekumar, V. (2025) Evidence for General Long-Term Memory Impairment Following SARS-CoV-2 Infection. Peer Community in Registered Reports, 100945. 10.24072/pci.rr.100945
This is a stage 2 based on:
Josefina Weinerova, Sabine Yeung, Panyuan Guo, Alice Yau, Connor Horne, Molly Ghinn, Lyn Curtis, Francess Adlard, Vidita Bhagat, Seraphina Zhang, Muzaffer Kaser, Mirjana Bozic, Denis Schluppeck, Andrew Reid, Roni Tibon, Lucy Cheke
https://osf.io/tjs5u
Recommendation
Level of bias control achieved: Level 3. At least some data/evidence that was used to the answer the research question had been accessed by the authors prior to in-principle acceptance (e.g. downloaded or otherwise received), but the authors certify that they had not yet observed ANY part of the data/evidence.
List of eligible PCI RR-friendly journals:
- Collabra: Psychology
- Cortex
- F1000Research
- In&Vertebrates
- Journal of Cognition
- Peer Community Journal
- PeerJ
- Royal Society Open Science
- Studia Psychologica
- Swiss Psychology Open
1. Chen, P.-C., & Chang, Y.-L. (2016, May). Associative memory and underlying brain correlates in older adults with mild cognitive impairment. Neuropsychologia, 85, 216–225. https://doi.org/10.1016/j.neuropsychologia.2016.03.032
The recommender in charge of the evaluation of the article and the reviewers declared that they have no conflict of interest (as defined in the code of conduct of PCI) with the authors or with the content of the article.
Reviewed by Phivos Phylactou
, 06 Jan 2025
Reviewed by anonymous reviewer 1, 27 Mar 2025
The authors have successfully followed the methodology and analysis plan outlined in the Stage 1 review. The results and interpretations adhere to the pre-registered hypotheses, and no substantial deviations from the approved protocol are evident. The adherence to the original plan strengthens the credibility of the findings and aligns with the principles of the Registered Report format.
However, a primary concern remains regarding the timing of data collection. It appears that a substantial portion of the dataset had already been collected before the Stage 1 review process. This raises concerns about whether this study fully meets the criteria of a Registered Report, given that many reviewer suggestions from Stage 1 could not be implemented due to the pre-existing dataset. The ability to make methodological changes is a crucial advantage of the Registered Report format, and its absence in this case is problematic.
Given these considerations, my recommendation is conditional. If the editorial team and managing board determine that the study meets the criteria for a Registered Report despite the data collection timeline, then I endorse its publication based on the fact that the study adheres to the pre-registered analytical plan and maintains transparency in its reporting. Nevertheless, this situation underscores the importance of ensuring that Stage 1 peer review is completed before substantial data collection occurs in future submissions.
Recommendation: Conditional endorsement, subject to the editorial board’s determination of eligibility as a Registered Report.
Reviewed by Mitul Mehta
, 28 Dec 2024
I have followed the PCI RR stafge 2 review guide:
2A. I thank the authors for taking on those suggestions of mine which were possible. The data collected are suitable for testing the hypotheses. Potential bias in recruitment remains an issus, but the authors highlight this clearly in the discussion. While this may not affect the correlations so much, this may affect the pre-registered analyses.
2B. The introduction, rationale and stated hypotheses (where applicable) are the same as the approved Stage 1 submission.
2C. I agree that the authors adhered precisely to the registered study procedures.
2D. Other, unregistered exploratory analyses are justified, methodologically sound, and informative.
2E. The authors’ conclusions are justified given the evidence and I agree with the limitations highlighted