Peer Review History

Original SubmissionFebruary 13, 2025
Decision Letter - Gökhan Töret, Editor

Dear Dr. Rosales,

Thank you for submitting your manuscript to PLOS ONE. After careful consideration, we feel that it has merit but does not fully meet PLOS ONE’s publication criteria as it currently stands. Therefore, we invite you to submit a revised version of the manuscript that addresses the points raised during the review process.

Please submit your revised manuscript by Oct 27 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.

  • A rebuttal letter that responds to each point raised by the academic editor and reviewer(s). You should upload this letter as a separate file labeled 'Response to Reviewers'.
  • A marked-up copy of your manuscript that highlights changes made to the original version. You should upload this as a separate file labeled 'Revised Manuscript with Track Changes'.
  • An unmarked version of your revised paper without tracked changes. You should upload this as a separate file labeled 'Manuscript'.

If you would like to make changes to your financial disclosure, please include your updated statement in your cover letter. Guidelines for resubmitting your figure files are available below the reviewer comments at the end of this letter.

https://journals.plos.org/plosone/s/submission-guidelines#loc-laboratory-protocols . Additionally, PLOS ONE offers an option for publishing peer-reviewed Lab Protocol articles, which describe protocols hosted on protocols.io. Read more information on sharing protocols at https://plos.org/protocols?utm_medium=editorial-email&utm_source=authorletters&utm_campaign=protocols .

We look forward to receiving your revised manuscript.

Kind regards,

Gökhan Töret

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

https://journals.plos.org/plosone/s/file?id=ba62/PLOSOne_formatting_sample_title_authors_affiliations.pdf

2. Please provide additional details regarding participant consent. In the ethics statement in the Methods and online submission information, please ensure that you have specified (1) whether consent was informed and (2) what type you obtained (for instance, written or verbal, and if verbal, how it was documented and witnessed). If your study included minors, state whether you obtained consent from parents or guardians. If the need for consent was waived by the ethics committee, please include this information.

If you are reporting a retrospective study of medical records or archived samples, please ensure that you have discussed whether all data were fully anonymized before you accessed them and/or whether the IRB or ethics committee waived the requirement for informed consent. If patients provided informed written consent to have data from their medical records used in research, please include this information.

3. Thank you for stating the following financial disclosure:

“National Science Foundation [NSF CBET 1706964] (PI: B.A. Smith, Co-PI: M.J. Matarić)

Children’s Hospital Los Angeles Best Starts to Life Research Support Grant (PI: M.R. Rosales; Mentor: B.A. Smith)”

Please state what role the funders took in the study. If the funders had no role, please state: 'The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript.'

If this statement is not correct you must amend it as needed.

Please include this amended Role of Funder statement in your cover letter; we will change the online submission form on your behalf.

4. Thank you for stating in your Funding Statement:

“National Science Foundation [NSF CBET 1706964] (PI: B.A. Smith, Co-PI: M.J. Matarić)

Children’s Hospital Los Angeles Best Starts to Life Research Support Grant (PI: M.R. Rosales; Mentor: B.A. Smith)”

Please provide an amended statement that declares *all* the funding or sources of support (whether external or internal to your organization) received during this study, as detailed online in our guide for authors at http://journals.plos.org/plosone/s/submit-now. Please also include the statement “There was no additional external funding received for this study.” in your updated Funding Statement.

Please include your amended Funding Statement within your cover letter. We will change the online submission form on your behalf.

5. Thank you for stating the following in the Acknowledgments Section of your manuscript:

“The authors thank all of the infants and their caregivers for their participation in the study. We also thank the staff of the Infant Neuromotor Control Laboratory at Children’s Hospital Los Angles. This research study was a part of M.R. Rosales’ PhD dissertation work at the University of Southern California. This research was supported in part by a grant from the National Science Foundation [NSF CBET 1706964] (PI: B.A. Smith, Co-PI: M.J. Matarić) and in part by a Children’s Hospital Los Angeles Best Starts to Life Research Support Grant (PI: M.R. Rosales; Mentor: B.A. Smith).”

We note that you have provided funding information that is currently declared in your Funding Statement. However, funding information should not appear in the Acknowledgments section or other areas of your manuscript. We will only publish funding information present in the Funding Statement section of the online submission form.

Please remove any funding-related text from the manuscript and let us know how you would like to update your Funding Statement. Currently, your Funding Statement reads as follows:

“National Science Foundation [NSF CBET 1706964] (PI: B.A. Smith, Co-PI: M.J. Matarić)

Children’s Hospital Los Angeles Best Starts to Life Research Support Grant (PI: M.R. Rosales; Mentor: B.A. Smith)”

Please include your amended statements within your cover letter; we will change the online submission form on your behalf.

6. Thank you for stating the following in your Competing Interests section:

“NO authors have competing interests”

Please complete your Competing Interests on the online submission form to state any Competing Interests. If you have no competing interests, please state 'The authors have declared that no competing interests exist.', as detailed online in our guide for authors at http://journals.plos.org/plosone/s/submit-now

This information should be included in your cover letter; we will change the online submission form on your behalf.

7. We note that your Data Availability Statement is currently as follows: All relevant data are within the manuscript and its Supporting Information files.

Please confirm at this time whether or not your submission contains all raw data required to replicate the results of your study. Authors must share the “minimal data set” for their submission. PLOS defines the minimal data set to consist of the data required to replicate all study findings reported in the article, as well as related metadata and methods (https://journals.plos.org/plosone/s/data-availability#loc-minimal-data-set-definition).

For example, authors should submit the following data:

- The values behind the means, standard deviations and other measures reported;

- The values used to build graphs;

- The points extracted from images for analysis.

Authors do not need to submit their entire data set if only a portion of the data was used in the reported study.

If your submission does not contain these data, please either upload them as Supporting Information files or deposit them to a stable, public repository and provide us with the relevant URLs, DOIs, or accession numbers. For a list of recommended repositories, please see https://journals.plos.org/plosone/s/recommended-repositories.

If there are ethical or legal restrictions on sharing a de-identified data set, please explain them in detail (e.g., data contain potentially sensitive information, data are owned by a third-party organization, etc.) and who has imposed them (e.g., an ethics committee). Please also provide contact information for a data access committee, ethics committee, or other institutional body to which data requests may be sent. If data are owned by a third party, please indicate how others may request data access.

8. We note that you have indicated that there are restrictions to data sharing for this study. For studies involving human research participant data or other sensitive data, we encourage authors to share de-identified or anonymized data. However, when data cannot be publicly shared for ethical reasons, we allow authors to make their data sets available upon request. For information on unacceptable data access restrictions, please see http://journals.plos.org/plosone/s/data-availability#loc-unacceptable-data-access-restrictions.

Before we proceed with your manuscript, please address the following prompts:

a) If there are ethical or legal restrictions on sharing a de-identified data set, please explain them in detail (e.g., data contain potentially identifying or sensitive patient information, data are owned by a third-party organization, etc.) and who has imposed them (e.g., a Research Ethics Committee or Institutional Review Board, etc.). Please also provide contact information for a data access committee, ethics committee, or other institutional body to which data requests may be sent.

b) If there are no restrictions, please upload the minimal anonymized data set necessary to replicate your study findings to a stable, public repository and provide us with the relevant URLs, DOIs, or accession numbers. Please see http://www.bmj.com/content/340/bmj.c181.long for guidelines on how to de-identify and prepare clinical data for publication. For a list of recommended repositories, please see https://journals.plos.org/plosone/s/recommended-repositories. You also have the option of uploading the data as Supporting Information files, but we would recommend depositing data directly to a data repository if possible.

Please update your Data Availability statement in the submission form accordingly.

9. If the reviewer comments include a recommendation to cite specific previously published works, please review and evaluate these publications to determine whether they are relevant and should be cited. There is no requirement to cite these works unless the editor has indicated otherwise.

10. Please review your reference list to ensure that it is complete and correct. If you have cited papers that have been retracted, please include the rationale for doing so in the manuscript text, or remove these references and replace them with relevant current references. Any changes to the reference list should be mentioned in the rebuttal letter that accompanies your revised manuscript. If you need to cite a retracted article, indicate the article’s retracted status in the References list and also include a citation and full reference for the retraction notice.

[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?

Reviewer #1: Yes

Reviewer #2: Yes

**********

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

Reviewer #1: Yes

Reviewer #2: Yes

**********

4. Is the manuscript presented in an intelligible fashion and written in standard English??>

Reviewer #1: Yes

Reviewer #2: Yes

**********

Reviewer #1: The manuscript was interesting and good written and discussed.

Introduction was good written and include the aim of the study.

Methods were good designed.

Results were good described.

Discussion was good written.

Reviewer #2: The authors studied 6 to 9 months old infants with high or low risk for getting an ASD diagnosis, based on sibling diagnoses, and how they could differ in gaze and motor behaviour in a contingency learning paradigm. They didn’t find expected differences (such as less anticipatory gaze or less overall looking time toward the agent), and they discuss this later on. I found the manuscript to be well written, with the Methods carefully and thoroughly described. I have some major concerns, but more like a possible add-on to the article. I found the overall article very sound and I encourage the publication of null results when the methods is sound and carefully described. This being said, I think the authors should run and report a power analysis before the manuscript being deemed appropriate for publication (see major concern #2).

Major concerns

1. Participants section: It might be obvious to the authors, but as it is not clearly stated I do dare ask: were participants screened for motor related impairments such as cerebral palsy or epilepsy? The fact that the two groups of participants are comparable on the Bayley-4 Motor Percentile should be enough to assert that they are both comparable in basic motor skills anyways, but just to be sure, please answer my question and maybe add it to the main text if relevant.

2. I think the authors should include a power analysis in the methods section, to help readers assess whether the null results should be attributed to sample size or not. I really don’t mind the exploratory nature of this article and the null results, but in my opinion, it has to be accompanied by a power analysis.

3. Paragraph between pages 13 and 14: “trended to look longer”. The p-value is 0.13 so I don’t think we can label it as a trend (of course this is subjective but it also linked to conventions in the field, and the dominant convention would say that trending would be between 0.05 and 0.1).

4. A lot of null results could be explained by the fact that both groups were similar in FYI scores. Maybe it’s the phenotype that counts, and not so much the risk factor of having a sibling with ASD? The authors did a good job on commenting on that in the discussion section already. But maybe the authors could also consider median splitting their sample on FYI overall scores? And run their analyses again? Just as an exploratory analysis? I think this would be a much better addition to the article compared to the zooming in on some participants that is made in some sections and in figure 1 (see my major concern 8).

5. In a related manner, the hypothesis that sensory atypicalities could lead to differences in motor functioning is interesting. Have the authors considered median splitting their sample on high and low scores on FYI dimensions 3, 4 or 6?

6. Page 14 “In contrast, there were 4 infants, etc.”: I don’t think zooming in on these 4 participants really add any clarity. Maybe the authors could consider dropping these sections entirely? Or enclosing them in an insert?

Minor concerns

1. There seems to be more lost gaze data for the LLA group due to blinking or participants shutting their eyes. Is the difference significant between the two groups? If so, what could be the explanation.

2. Not sure I understand the last paragraph of page 9. If I understand correctly, reaching a reliability of 80% would already mean that coders assessed the same video segments. So why is there a second step in which one third of the videos were assessed for inter raters reliability, like again?

3. Typos:

- Page 9, last paragraph, 1st sentence: “reliably” should be “reliability”.

- Page 18, line 3: “avoidance” instead of “avoidence”. Line 5: “attention” instead of “attnetion”

**********

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: Yes:  Matias Baltazar

**********

[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. Then, login and navigate to the UPLOAD tab, where you will find detailed instructions on how to use the tool. If you encounter any issues or have any questions when using PACE, please email PLOS at figures@plos.org . Please note that Supporting Information files do not need this step.

Revision 1

Response to Editor and Reviewers

To all,

Thank you all for the comments and feedback and for making the work stronger. Per the editors request we would like to state the following:

• The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript.

• There was no additional external funding received for this study.

• The authors have declared that no competing interests exist.

Below is an item-by-item list of all the points addressed in your comments. In addition, all revisions are highlighted in the uploaded manuscript document.

Editor,

Thank you for your comments. Below is a response for each point:

• Please ensure that your manuscript meets PLOS ONE's style requirements, including those for file naming.

o The manuscript was revised to the specification in the template.

• Please provide additional details regarding participant consent. In the ethics statement in the Methods and online submission information, please ensure that you have specified (1) whether consent was informed and (2) what type you obtained (for instance, written or verbal, and if verbal, how it was documented and witnessed). If your study included minors, state whether you obtained consent from parents or guardians. If the need for consent was waived by the ethics committee, please include this information.

o The methods section was revised to specify that written informed consent was provided by a parent or legal guardian. In the prior submission, we provided the IRB approval and consent from.

• Thank you for stating the following financial disclosure: “National Science Foundation [NSF CBET 1706964] (PI: B.A. Smith, Co-PI: M.J. Matarić) Children’s Hospital Los Angeles Best Starts to Life Research Support Grant (PI: M.R. Rosales; Mentor: B.A. Smith)” Please state what role the funders took in the study. If the funders had no role, please state: 'The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript.'If this statement is not correct you must amend it as needed. Please include this amended Role of Funder statement in your cover letter; we will change the online submission form on your behalf.

o The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript.

• Thank you for stating in your Funding Statement:“National Science Foundation [NSF CBET 1706964] (PI: B.A. Smith, Co-PI: M.J. Matarić) Children’s Hospital Los Angeles Best Starts to Life Research Support Grant (PI: M.R. Rosales; Mentor: B.A. Smith)”Please provide an amended statement that declares *all* the funding or sources of support (whether external or internal to your organization) received during this study, as detailed online in our guide for authors at http://journals.plos.org/plosone/s/submit-now. Please also include the statement “There was no additional external funding received for this study.” in your updated Funding Statement. Please include your amended Funding Statement within your cover letter. We will change the online submission form on your behalf.

o There was no additional external funding received for this study.

• Thank you for stating the following in the Acknowledgments Section of your manuscript:“The authors thank all of the infants and their caregivers for their participation in the study. We also thank the staff of the Infant Neuromotor Control Laboratory at Children’s Hospital Los Angles. This research study was a part of M.R. Rosales’ PhD dissertation work at the University of Southern California. This research was supported in part by a grant from the National Science Foundation [NSF CBET 1706964] (PI: B.A. Smith, Co-PI: M.J. Matarić) and in part by a Children’s Hospital Los Angeles Best Starts to Life Research Support Grant (PI: M.R. Rosales; Mentor: B.A. Smith).”We note that you have provided funding information that is currently declared in your Funding Statement. However, funding information should not appear in the Acknowledgments section or other areas of your manuscript. We will only publish funding information present in the Funding Statement section of the online submission form.Please remove any funding-related text from the manuscript and let us know how you would like to update your Funding Statement. Currently, your Funding Statement reads as follows:“National Science Foundation [NSF CBET 1706964] (PI: B.A. Smith, Co-PI: M.J. Matarić). Children’s Hospital Los Angeles Best Starts to Life Research Support Grant (PI: M.R. Rosales; Mentor: B.A. Smith)”Please include your amended statements within your cover letter; we will change the online submission form on your behalf.

o The funding information was removed from the acknowledgment section per publishing guidelines.

• Thank you for stating the following in your Competing Interests section:“NO authors have competing interests”Please complete your Competing Interests on the online submission form to state any Competing Interests. If you have no competing interests, please state 'The authors have declared that no competing interests exist.', as detailed online in our guide for authors at http://journals.plos.org/plosone/s/submit-nowThis information should be included in your cover letter; we will change the online submission form on your behalf.

o The authors have declared that no competing interests exist.

• Data Availability

o We agree with the importance of data sharing. However, under our current IRB agreement we are not allowed to share data. Therefore, data is available upon reasonable request to the corresponding author.

• The Reviewers comments did not require more literature to cite.

• Reference list is correct and has been checked.

Review 1,

Thank you for all your comments!

Reviewer 2,

Thank you for all your comments and feedback! Below is an itemized list for revisions to address your major and minor concerns.

• Major Concerns

o Participants section: It might be obvious to the authors, but as it is not clearly stated I do dare ask: were participants screened for motor related impairments such as cerebral palsy or epilepsy? The fact that the two groups of participants are comparable on the Bayley-4 Motor Percentile should be enough to assert that they are both comparable in basic motor skills anyways, but just to be sure, please answer my question and maybe add it to the main text if relevant.

� Thank you for pointing this out. We confirm that participants were screened for motor-related impairments (e.g., cerebral palsy, epilepsy) as part of our inclusion criteria. We have clarified this in the Participants section.

o I think the authors should include a power analysis in the methods section, to help readers assess whether the null results should be attributed to sample size or not. I really don’t mind the exploratory nature of this article and the null results, but in my opinion, it has to be accompanied by a power analysis.

� We appreciate the reviewer’s suggestion regarding power analysis. We did not conduct a post-hoc power analysis because, once a study has been completed, statistical power is directly determined by the observed effect sizes and p-values, making post-hoc power redundant. As Dorey 2010 (doi: 10.1007/s11999-010-1435-0) points out in their discussion about power calculation, calculating power after data has been collected does not change the fact that novel and relevant finding are being presented. Given that this is an exploratory research study, the data presented here would be used in our future grant proposals for confirming studies. We report effect sizes using Person’s r, which provide more meaningful information about the magnitude and precision of the observed effects. This approach is consistent with current methodological recommendations.

o Paragraph between pages 13 and 14: “trended to look longer”. The p-value is 0.13 so I don’t think we can label it as a trend (of course this is subjective but it also linked to conventions in the field, and the dominant convention would say that trending would be between 0.05 and 0.1).

� We changed the wording to state that there may have had a slight tendency instead of trend. While the p-value does not suggest trend in different fields, the effect size does. We report both in the paper and softened the language.

o A lot of null results could be explained by the fact that both groups were similar in FYI scores. Maybe it’s the phenotype that counts, and not so much the risk factor of having a sibling with ASD? The authors did a good job on commenting on that in the discussion section already. But maybe the authors could also consider median splitting their sample on FYI overall scores? And run their analyses again? Just as an exploratory analysis? I think this would be a much better addition to the article compared to the zooming in on some participants that is made in some sections and in figure 1 (see my major concern 8). In a related manner, the hypothesis that sensory atypicalities could lead to differences in motor functioning is interesting. Have the authors considered median splitting their sample on high and low scores on FYI dimensions 3, 4 or 6? Page 14 “In contrast, there were 4 infants, etc.”: I don’t think zooming in on these 4 participants really add any clarity. Maybe the authors could consider dropping these sections entirely? Or enclosing them in an insert?

� All comments for the FYI are addressed in this statement. We agree and have conducted additional exploratory analyses; however, we decided against the application of a median split, given potential consequences for study power and inference (e.g., MacCallum, et al., 2002; McClelland, et al., 2015).

• MacCallum, R. C., Zhang, S., Preacher, K. J., & Rucker, D. D. (2002). On the practice of dichotomization of quantitative variables. Psychological methods, 7(1), 19.

• McClelland, G. H., Lynch Jr, J. G., Irwin, J. R., Spiller, S. A., & Fitzsimons, G. J. (2015). Median splits, Type II errors, and false–positive consumer psychology: Don't fight the power. Journal of Consumer Psychology, 25(4), 679-689.

� In regard to the zooming in on the 4 participants, we choice to retain this piece in the work. This snapshot illustrates the visual gaze patterns that were exhibited, that are different than the common trend. Further work should be conducted to explore these patterns more and the individual data highlights the potential visual motor patterns that can occur.

• Minor concerns

• There seems to be more lost gaze data for the LLA group due to blinking or participants shutting their eyes. Is the difference significant between the two groups? If so, what could be the explanation.

o We tested for significant differences and found that the two groups were not significantly different according to Wilcoxon Rank-sum test. This is now included in the methods section.

• Not sure I understand the last paragraph of page 9. If I understand correctly, reaching a reliability of 80% would already mean that coders assessed the same video segments. So why is there a second step in which one third of the videos were assessed for inter raters reliability, like again?

o This is the standard coding practices for this type of analysis (see….). The first 80% is a training phase so that coders reach 80% reliably during training. Then a third of their data is checked to ensure that the coders maintained reliable standards. We expanded the section to explain this further. The section now reads: ”Three video coders were trained on select data sets and had to achieve a reliability of 80% before analyzing data (i.e. training prior to processing). After reliability was achieved, one third of the data each coder processed was assessed for reliability, to ensure that reliability was maintained throughout processing.”

• Typos:- Page 9, last paragraph, 1st sentence: “reliably” should be “reliability”.- Page 18, line 3: “avoidance” instead of “avoidence”. Line 5: “attention” instead of “attnetion”

o All suggested typos are fixed.

Attachments
Attachment
Submitted filename: Response to reviewers_BAS.docx
Decision Letter - Gökhan Töret, Editor

BEHAVIORAL DIFFERENCES BETWEEN INFANTS AT AND NOT AT ELEVATED RISK FOR AUTISM DURING A CONTINGENCY PARADIGM

PLOS One

Dear Dr. Rosales,

Thank you for submitting your manuscript to PLOS ONE. After careful consideration, we feel that it has merit but does not fully meet PLOS ONE’s publication criteria as it currently stands. Therefore, we invite you to submit a revised version of the manuscript that addresses the points raised during the review process.

Please submit your revised manuscript by Jan 25 2026 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.

  • A rebuttal letter that responds to each point raised by the academic editor and reviewer(s). You should upload this letter as a separate file labeled 'Response to Reviewers'.
  • A marked-up copy of your manuscript that highlights changes made to the original version. You should upload this as a separate file labeled 'Revised Manuscript with Track Changes'.
  • An unmarked version of your revised paper without tracked changes. You should upload this as a separate file labeled 'Manuscript'.

If you would like to make changes to your financial disclosure, please include your updated statement in your cover letter. Guidelines for resubmitting your figure files are available below the reviewer comments at the end of this letter.

If applicable, we recommend that you deposit your laboratory protocols in protocols.io to enhance the reproducibility of your results. Protocols.io assigns your protocol its own identifier (DOI) so that it can be cited independently in the future. For instructions see: https://journals.plos.org/plosone/s/submission-guidelines#loc-laboratory-protocols . Additionally, PLOS ONE offers an option for publishing peer-reviewed Lab Protocol articles, which describe protocols hosted on protocols.io. Read more information on sharing protocols at https://plos.org/protocols?utm_medium=editorial-email&utm_source=authorletters&utm_campaign=protocols .

We look forward to receiving your revised manuscript.

Kind regards,

Gökhan Töret

Academic Editor

PLOS One

Journal Requirements:

If the reviewer comments include a recommendation to cite specific previously published works, please review and evaluate these publications to determine whether they are relevant and should be cited. There is no requirement to cite these works unless the editor has indicated otherwise.

Please review your reference list to ensure that it is complete and correct. If you have cited papers that have been retracted, please include the rationale for doing so in the manuscript text, or remove these references and replace them with relevant current references. Any changes to the reference list should be mentioned in the rebuttal letter that accompanies your revised manuscript. If you need to cite a retracted article, indicate the article’s retracted status in the References list and also include a citation and full reference for the retraction notice.

Additional Editor Comments:

Thank you for submitting your manuscript to PLOS ONE. Thank you for the revision. For your information, all reviewer concerns have been addressed. The only remaining editorial issue is that funding information still appears in the Acknowledgments section. Please remove it, as funding details must be listed only in the Funding Statement. Once this correction is made, the manuscript will be ready for acceptance.

[Note: HTML markup is below. Please do not edit.]

To ensure your figures meet our technical requirements, please review our figure guidelines: https://journals.plos.org/plosone/s/figures

You may also use PLOS’s free figure tool, NAAS, to help you prepare publication quality figures: https://journals.plos.org/plosone/s/figures#loc-tools-for-figure-preparation.

NAAS will assess whether your figures meet our technical requirements by comparing each figure against our figure specifications.

Revision 2

Dear Editor,

Thank you for your comments. Below is a response for each point:

• Comment: Please include your tables as part of your main manuscript and remove the individual files. Please note that supplementary tables (should remain/ be uploaded) as separate "Supporting Information" files

o Response: All tables are now in the main document and have been removed from the submission portal. “Revised Manuscript with Track Changes12_15_2025” is the revised manuscript upload.

Thank you for all your hard work and please let us know if you need anything else from us.

Sincerely,

Marcelo Rosales

Attachments
Attachment
Submitted filename: Response to reviewers_BAS_20251215.docx
Decision Letter - Gökhan Töret, Editor

BEHAVIORAL DIFFERENCES BETWEEN INFANTS AT AND NOT AT ELEVATED RISK FOR AUTISM DURING A CONTINGENCY PARADIGM

PONE-D-25-06495R2

Dear Dr. Rosales,

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. For questions related to billing, please contact billing support .

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,

Gökhan Töret

Academic Editor

PLOS One

Additional Editor Comments (optional):

Reviewers' comments:

Formally Accepted
Acceptance Letter - Gökhan Töret, Editor

PONE-D-25-06495R2

PLOS One

Dear Dr. Rosales,

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.

You will receive an invoice from PLOS for your publication fee after your manuscript has reached the completed accept phase. If you receive an email requesting payment before acceptance or for any other service, this may be a phishing scheme. Learn how to identify phishing emails and protect your accounts at https://explore.plos.org/phishing.

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. Gökhan Töret

Academic Editor

PLOS One

Open letter on the publication of peer review reports

PLOS recognizes the benefits of transparency in the peer review process. Therefore, we enable the publication of all of the content of peer review and author responses alongside final, published articles. Reviewers remain anonymous, unless they choose to reveal their names.

We encourage other journals to join us in this initiative. We hope that our action inspires the community, including researchers, research funders, and research institutions, to recognize the benefits of published peer review reports for all parts of the research system.

Learn more at ASAPbio .