Peer Review History
| Original SubmissionJanuary 13, 2025 |
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PONE-D-25-00635The Familiarity Effect of Chinese Stroke Stimulus and Imagery on Contextual Integration: Evidence from ERP CorrelatesPLOS ONE Dear Dr. Chan, Thank you for submitting your manuscript to PLOS ONE. Your manuscript has been reviewed by two experts in the field. Both of them agreed that the topic of the study is interesting, but they also raised some conceptual and methodological issues that need to be addressed. You can find their comments in this decision letter. We invite you to submit a revised version of the manuscript that addresses the points raised during the review process. In particular, please pay special attention to R1's comment about the small sample size. Please provide a power analysis to address this. In addition, please also state the number of items you have used in stimuli (currently mentioned in paradigm: 4 blocks of 16 trials per block. But it is unclear whether there were repetitions). Both pieces of information are important to evaluate the generalizability of your findings. Please submit your revised manuscript by May 03 2025 11:59PM. If you will need more time than this to complete your revisions, please reply to this message or contact the journal office at plosone@plos.org . When you're ready to submit your revision, log on to https://www.editorialmanager.com/pone/ and select the 'Submissions Needing Revision' folder to locate your manuscript file. Please include the following items when submitting your revised manuscript:
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Kind regards, Yiu-Kei Tsang Academic Editor PLOS ONE Journal requirements: When submitting your revision, we need you to address these additional requirements. 1. Please ensure that your manuscript meets PLOS ONE's style requirements, including those for file naming. The PLOS ONE style templates can be found at https://journals.plos.org/plosone/s/file?id=wjVg/PLOSOne_formatting_sample_main_body.pdf and 2. In the online submission form, you indicated that [Data cannot be shared publicly because of participants' confidentiality. Data are available from the Dpearmental Ethics Committee (contact via Dr Sam Chi Chung Chan) upon request.]. All PLOS journals now require all data underlying the findings described in their manuscript to be freely available to other researchers, either 1. In a public repository, 2. Within the manuscript itself, or 3. Uploaded as supplementary information. This policy applies to all data except where public deposition would breach compliance with the protocol approved by your research ethics board. If your data cannot be made publicly available for ethical or legal reasons (e.g., public availability would compromise patient privacy), please explain your reasons on resubmission and your exemption request will be escalated for approval. 3. Please include your full ethics statement in the ‘Methods’ section of your manuscript file. In your statement, please include the full name of the IRB or ethics committee who approved or waived your study, as well as whether or not you obtained informed written or verbal consent. If consent was waived for your study, please include this information in your statement as well. [Note: HTML markup is below. Please do not edit.] Reviewers' comments: Reviewer's Responses to Questions Comments to the Author 1. Is the manuscript technically sound, and do the data support the conclusions? The manuscript must describe a technically sound piece of scientific research with data that supports the conclusions. Experiments must have been conducted rigorously, with appropriate controls, replication, and sample sizes. The conclusions must be drawn appropriately based on the data presented. Reviewer #1: Yes Reviewer #2: Partly ********** 2. Has the statistical analysis been performed appropriately and rigorously? Reviewer #1: Yes Reviewer #2: Yes ********** 3. Have the authors made all data underlying the findings in their manuscript fully available? The PLOS Data policy requires authors to make all data underlying the findings described in their manuscript fully available without restriction, with rare exception (please refer to the Data Availability Statement in the manuscript PDF file). The data should be provided as part of the manuscript or its supporting information, or deposited to a public repository. For example, in addition to summary statistics, the data points behind means, medians and variance measures should be available. If there are restrictions on publicly sharing data—e.g. participant privacy or use of data from a third party—those must be specified. Reviewer #1: Yes Reviewer #2: Yes ********** 4. Is the manuscript presented in an intelligible fashion and written in standard English? PLOS ONE does not copyedit accepted manuscripts, so the language in submitted articles must be clear, correct, and unambiguous. Any typographical or grammatical errors should be corrected at revision, so please note any specific errors here. Reviewer #1: Yes Reviewer #2: Yes ********** 5. Review Comments to the Author Please use the space provided to explain your answers to the questions above. You may also include additional comments for the author, including concerns about dual publication, research ethics, or publication ethics. (Please upload your review as an attachment if it exceeds 20,000 characters) Reviewer #1: The manuscript presents a technically sound study with a clear hypothesis and experimental design. The use of ERP components (N160, P200, N400) to investigate attentional control and contextual integration in processing familiar vs. unfamiliar Chinese strokes is well-grounded in prior literature. The tasks (imagery vs. detection) and stimuli (semi-cursive vs. regular styles) are appropriately designed to address the research questions. The study addresses an underexplored topic (sub-character-level contextual integration) using a novel paradigm with Chinese strokes. The integration of ERP components to dissociate attentional and semantic processes is methodologically robust. The study offers valuable insights into contextual integration mechanisms but requires methodological refinements, statistical transparency, and language improvements to meet publication standards. Theoretically, the authors may discuss how findings extend beyond orthographic processing to general mechanisms of contextual integration (e.g., cross-modal comparisons). The sample size (N=19) is relatively small for ERP studies, which may limit generalizability. While the results align with the hypotheses (e.g., larger N400 amplitudes for unfamiliar stimuli), the lack of behavioral data (e.g., accuracy, reaction times) to corroborate ERP findings weakens the conclusions. The statistical analysis is generally appropriate, employing three-way repeated-measures ANOVA with Greenhouse-Geisser correction for sphericity violations. Post-hoc tests with Bonferroni adjustments are justified. However, critical details are missing: 1�The exact p-values for ANOVA results (e.g., p<0.005 for N160) are inconsistently reported. 2�Effect sizes (e.g., η²) are not provided, making it difficult to assess the magnitude of observed effects. 3�The rationale for selecting midline electrodes (Fz, Cz, Pz) over other regions is not explicitly stated, raising concerns about potential cherry-picking. 4�The manuscript does not address potential outliers or data normality assumptions. These omissions reduce the rigor and transparency of the analysis. The author may want to justify the sample size (N=19) with a power analysis. Include demographic details (e.g., educational background, handedness) to contextualize findings. And also report accuracy and reaction times to validate ERP results and rule out task performance confounds. The writing is generally clear but contains grammatical errors and awkward phrasing that hinder readability. Thorough language editing is required to meet PLOS ONE’s standards. 1�Typos: “heighted” → “heightened” (Abstract, Line 4); “abd” → “and” (Page 12, Line 69). 2�Inconsistent terminology: “semi-cursive” vs. “Shinsu” (Page 19, Line 202); “radial-omitted” → “radical-omitted” (Page 14, Line 131). 3�Ambiguous sentences: E.g., “The education level of all selected characters was up to primary six” (Page 19, Line 208) – clarify if this refers to character complexity or participant education. 4�Formatting issues: Missing spaces (e.g., “N400 300-500ms)” → “N400 (300-500 ms)”), inconsistent citation styles (e.g., “Kutas & Federmeier, 2011” vs. “Kutas et al., 2011”). Reviewer #2: Reviewer Report for Manuscript PONE-D-25-00635 Title: The Familiarity Effect of Chinese Stroke Stimulus and Imagery on Contextual Integration: Evidence from ERP Correlates General Comments This manuscript investigates how familiarity with Chinese stroke stimuli influences attentional processes and contextual integration, using ERP components (N160, P200, and N400) as neural markers. The focus on sub-character (stroke-level) processing is innovative and has the potential to contribute to our understanding of orthographic processing in Chinese. However, the study’s significance is undermined by a lack of clarity in its core concept—"incongruency" at the stroke level—as well as insufficient theoretical grounding, undefined terms, and methodological ambiguities. Addressing these issues through minor revisions will enhance the manuscript’s rigor and impact. Major Concerns 1. Unclear Definition of "Incongruency" at the Stroke Level The central concept of "incongruency" at the sub-character (stroke) level is not clearly defined, leaving readers uncertain about what it represents and why it matters. Specifically: • The authors do not specify whether the incongruency pertains to stroke sequences during production (e.g., writing) or recognition (e.g., reading/perceiving). For example, if unexpected stroke sequences are presented in playback, this could reflect a production issue (deviating from how strokes are typically written) rather than a recognition issue (deviating from how strokes are expected in perception). Alternatively, it could involve both, but this ambiguity need to be addressed. The N400, typically linked to unexpected patterns or meanings, is used here to index stroke-level incongruency, but its relevance depends on whether the authors are targeting recognition, production, or a combination. • The study appears to assume that stroke-level information (e.g., sequence or order) is stored and actively used in character recognition, making "incongruency" at this level detectable and meaningful. However, this assumption is neither explicitly stated nor supported with evidence. Without this foundation, the premise of studying stroke-level incongruency lacks justification. • The authors frequently mention "integration," but it’s unclear how stroke-level incongruency relates to this process. If integration is about recognition (e.g., combining stroke information into a character), the design should test recognition-specific effects. If it involves production, this should be clarified. The current ambiguity makes it difficult to assess how stroke-level processing fits into the broader orthographic processing framework. Recommendations: • Explicitly define "incongruency" and specify whether it relates to production, recognition, or both. • State the assumption that stroke-level information is stored and used in recognition (or production), and provide literature support (e.g., studies on stroke sequence encoding, sub-character processing, or orthographic integration in Chinese). • Clarify how stroke-level incongruency contributes to orthographic integration, aligning it with the study’s research question. 2. Undefined Key Terms Terms like "attention," "selective attention," "orientation of attention," and "integration" are used frequently but not defined. For instance, does "integration" refer to combining strokes into characters, contextual understanding, or something else? Brief definitions upon first use would improve clarity. 3. Methodological concern • The choice of midline sites (Fz, Cz, Pz) for ERP analysis is not explained. Why were these sites chosen for N160, P200, and N400 effects? • Applying the N400—typically a semantic processing marker—to non-semantic stroke stimuli is less common. The authors need to provide precedent (e.g., N400 effects in orthographic or non-linguistic contexts) to support this approach. Minor Concerns • The assumption that semi-cursive strokes are unfamiliar to participants is untested. Evidence (e.g., a familiarity survey or participant background data) should confirm this, if this is difficult to achieve, author can consider providing support from literature • The term "optimal balance" (related to attention) is vague. What does it mean, and how does it connect to the study’s goals? General Recommendation This study’s focus on sub-character (stroke-level) processing is innovative and has the potential to advance understanding of orthographic processing in Chinese. However, the manuscript would benefit from clearer definition of "incongruency" (production vs. recognition), further clarification of assumptions regarding stroke-level storage, and additional theoretical and methodological explanations. I recommend minor revision to address these points: • Define "incongruency" and clarify whether it pertains to production, recognition, or both, linking it to orthographic integration. • Justify the assumption that stroke-level information is stored and used, with literature support. • Improve theoretical rationale for studying stroke-level incongruency. • Define key terms (e.g., "attention," "integration"). • Justify electrode sites and N400 use, and detail the experimental paradigm. • Verify stimulus familiarity assumptions (or with support from literature). ********** 6. PLOS authors have the option to publish the peer review history of their article (what does this mean? ). If published, this will include your full peer review and any attached files. If you choose “no”, your identity will remain anonymous but your review may still be made public. Do you want your identity to be public for this peer review? For information about this choice, including consent withdrawal, please see our Privacy Policy . Reviewer #1: No Reviewer #2: No ********** [NOTE: If reviewer comments were submitted as an attachment file, they will be attached to this email and accessible via the submission site. Please log into your account, locate the manuscript record, and check for the action link "View Attachments". If this link does not appear, there are no attachment files.] While revising your submission, please upload your figure files to the Preflight Analysis and Conversion Engine (PACE) digital diagnostic tool, https://pacev2.apexcovantage.com/ . PACE helps ensure that figures meet PLOS requirements. To use PACE, you must first register as a user. Registration is free. 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| Revision 1 |
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The Familiarity Effect of Chinese Stroke Stimulus and Imagery on Contextual Integration: Evidence from ERP Correlates PONE-D-25-00635R1 Dear Dr. Chan, We’re pleased to inform you that your manuscript has been judged scientifically suitable for publication and will be formally accepted for publication once it meets all outstanding technical requirements. Within one week, you’ll receive an e-mail detailing the required amendments. When these have been addressed, you’ll receive a formal acceptance letter and your manuscript will be scheduled for publication. An invoice will be generated when your article is formally accepted. Please note, if your institution has a publishing partnership with PLOS and your article meets the relevant criteria, all or part of your publication costs will be covered. Please make sure your user information is up-to-date by logging into Editorial Manager at Editorial Manager® and clicking the ‘Update My Information' link at the top of the page. If you have any questions relating to publication charges, please contact our Author Billing department directly at authorbilling@plos.org. If your institution or institutions have a press office, please notify them about your upcoming paper to help maximize its impact. If they’ll be preparing press materials, please inform our press team as soon as possible -- no later than 48 hours after receiving the formal acceptance. Your manuscript will remain under strict press embargo until 2 pm Eastern Time on the date of publication. For more information, please contact onepress@plos.org. Kind regards, Yiu-Kei Tsang Academic Editor PLOS ONE Additional Editor Comments (optional): Reviewers' comments: Reviewer's Responses to Questions Comments to the Author 1. If the authors have adequately addressed your comments raised in a previous round of review and you feel that this manuscript is now acceptable for publication, you may indicate that here to bypass the “Comments to the Author” section, enter your conflict of interest statement in the “Confidential to Editor” section, and submit your "Accept" recommendation. Reviewer #1: All comments have been addressed Reviewer #2: All comments have been addressed ********** 2. Is the manuscript technically sound, and do the data support the conclusions? The manuscript must describe a technically sound piece of scientific research with data that supports the conclusions. Experiments must have been conducted rigorously, with appropriate controls, replication, and sample sizes. The conclusions must be drawn appropriately based on the data presented. Reviewer #1: Yes Reviewer #2: Yes ********** 3. Has the statistical analysis been performed appropriately and rigorously? Reviewer #1: Yes Reviewer #2: Yes ********** 4. Have the authors made all data underlying the findings in their manuscript fully available? The PLOS Data policy requires authors to make all data underlying the findings described in their manuscript fully available without restriction, with rare exception (please refer to the Data Availability Statement in the manuscript PDF file). The data should be provided as part of the manuscript or its supporting information, or deposited to a public repository. For example, in addition to summary statistics, the data points behind means, medians and variance measures should be available. If there are restrictions on publicly sharing data—e.g. participant privacy or use of data from a third party—those must be specified. Reviewer #1: Yes Reviewer #2: Yes ********** 5. Is the manuscript presented in an intelligible fashion and written in standard English? PLOS ONE does not copyedit accepted manuscripts, so the language in submitted articles must be clear, correct, and unambiguous. Any typographical or grammatical errors should be corrected at revision, so please note any specific errors here. Reviewer #1: Yes Reviewer #2: Yes ********** 6. Review Comments to the Author Please use the space provided to explain your answers to the questions above. You may also include additional comments for the author, including concerns about dual publication, research ethics, or publication ethics. (Please upload your review as an attachment if it exceeds 20,000 characters) Reviewer #1: The authors have adequately addressed the concerns raised in my previous review. The current version demonstrates significantly improved logical coherence and enhanced clarity of presentation, making the manuscript more accessible to readers. The revisions to the methodology and analytical sections have strengthened the academic rigor and scholarly standards of the work. The modifications effectively resolve the previously identified issues while maintaining the scientific integrity of the research. Based on these substantial improvements, I recommend this manuscript for acceptance. Reviewer #2: Despite the potential technical issue of internal notes and comments from the authors' team appearing in the response, the content remains understandable, and the revised manuscript indicates that the authors have carefully considered and addressed all of my comments and suggestions. I have no further concerns and consider the manuscript suitable for acceptance and publication. ********** 7. PLOS authors have the option to publish the peer review history of their article (what does this mean? ). If published, this will include your full peer review and any attached files. If you choose “no”, your identity will remain anonymous but your review may still be made public. Do you want your identity to be public for this peer review? For information about this choice, including consent withdrawal, please see our Privacy Policy . Reviewer #1: No Reviewer #2: No ********** |
| Formally Accepted |
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PONE-D-25-00635R1 PLOS ONE Dear Dr. Chan, I'm pleased to inform you that your manuscript has been deemed suitable for publication in PLOS ONE. Congratulations! Your manuscript is now being handed over to our production team. At this stage, our production department will prepare your paper for publication. This includes ensuring the following: * All references, tables, and figures are properly cited * All relevant supporting information is included in the manuscript submission, * There are no issues that prevent the paper from being properly typeset You will receive further instructions from the production team, including instructions on how to review your proof when it is ready. Please keep in mind that we are working through a large volume of accepted articles, so please give us a few days to review your paper and let you know the next and final steps. Lastly, if your institution or institutions have a press office, please let them know about your upcoming paper now to help maximize its impact. If they'll be preparing press materials, please inform our press team within the next 48 hours. Your manuscript will remain under strict press embargo until 2 pm Eastern Time on the date of publication. For more information, please contact onepress@plos.org. If we can help with anything else, please email us at customercare@plos.org. Thank you for submitting your work to PLOS ONE and supporting open access. Kind regards, PLOS ONE Editorial Office Staff on behalf of Dr. Yiu-Kei Tsang Academic Editor PLOS ONE |
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