Frontiers Reviews significantly redefine the assignments for both authors and editors in order to guarantee the most
accurate, efficient and impartial reviews in academic publishing. Frontiers reviews largely rely on the advanced IT
functionalities of the Frontiers platform and are typically articulated into two consecutive phases:
During the Independent Review phase, the review editors assess the paper independently from each other and the authors,
according to a standardized review template.
During the Interactive Review phase, authors and Review Editors can interact with each other through real-time comments
in the discussion forum. The Associate Editor and if required the Specialty Chief Editor can also enter the Review Forum
and oversee this review process.
Frontiers Review at a Glance
Frontiers Full Review
Frontiers Short Review
Frontiers Review at a Glance
The Frontiers Review System provides and guarantees:
Frontiers is striving to remove any bias from the review process and acknowledge the reviewers for the significant
contributions in improving the paper. To guarantee the most transparent and objective reviews, the identities of review
editors remain anonymous during the review period. Only in case an article is accepted do their names appear on the
published manuscript, without exceptions. However, if for any reasons a review editor withdraws during any stage of
the review process, his/her name will not be disclosed.
Standardized and High Quality Reviews
Frontiers provides a review template to make reviews systematic and convene the efforts of review editors exclusively
on objective issues. The review must focus solely on the quality of both the research and the manuscript, and aim at
providing constructive comments to bring the final paper to its best quality. This allows fair, rapid, comprehensive and
comparable assessment of research. The evaluation of the research will be done successively by means of the Frontiers Evaluation System. Moreover, Frontiers provides authors
with the highest quality review service by assigning only the world’s top researchers to the Frontiers Boards of
Our Interactive Review Forum facilitates the review process by enabling all participants (authors, review editors, the
associate editor and, if need be, the specialty chief editor) to view reports and directly communicate with one another to
easily address comments regarding an article. Indeed, the goal of the Interactive Review is to facilitate convergence of
opinions. This phase allows unlimited rounds of reviews and resubmissions, until the manuscript is deemed acceptable.
Rapid Paper Pending Publications
Once the Interactive Review Forum is activated, Frontiers allows to immediately publish the abstract of an article in
review as “paper pending”. By securing the public declaration date of the discovery, the paper pending allows
a pressure-free and most effective collaboration with the review editors towards improving the manuscript, without the
concern that the authors’ discovery might be scooped while the review is on-going.
Frontiers promotes a strict separation between review and evaluation. Review editors may comment only in regard to objective
issues and may recommend rejection based exclusively upon objective errors. The mandate for review editors is to ensure
that the results are valid, the analysis is flawless and the quality as high as possible. The significance of articles is
separately evaluated by the entire community by means of the Frontiers Evaluation System.
Should a dispute arise that threatens to reject an article, the author may trigger arbitration. In the first place, the
associate editor will arbitrate and involve all review editors in a discussion aimed at resolving the dispute. If a
resolution cannot be agreed upon, the specialty chief editor is alerted and can opt to bring in additional review and
associate editors for consultation. An article can be rejected if the arbitration rules that the objective error stands.
Review editors are entitled to trigger arbitration, too, if they reckon that the author is reluctant to make required
changes. Review editors may withdraw from the review process if they disagree with other editors, the authors and the
arbitration rulings (in which case their identity remains undisclosed). The withdrawal of a review editor requires the
recruitment of a new one, and significantly slows down the process. Therefore, authors are encouraged to co-operate as
much as possible in addressing the concerns of the review editors involved with their articles.
Conflicts of Interest
Frontiers is committed to upholding the highest standards of publication ethics and takes publication malpractice and
conflicts of interest very seriously (see our Author
Conditions). Some personal, financial and professional affiliations or relationships may be considered conflicts of
interest. All authors and all members of Frontiers Editorial Boards are required to disclose any actual and potential
conflicts of interest at submission or upon accepting an editorial or review assignment.
The Frontiers review system is designed to guarantee the most transparent and objective editorial and review process, and
because associate and review editors' names are made public upon the publication of articles, conflicts of interest will
be openly and widely apparent.
If you can answer yes to any of the questions below, Frontiers considers this to be a potential conflict of interest. If
you have any doubt about whether a relationship or an interest qualifies as a conflict of interest, it is always better to
disclose this potential conflict such that senior editors and the Frontiers Editorial Office can determine whether it
necessitates disclosure in the manuscript, or whether an alternate reviewer or editor should be assigned.
1. Did you or your institution at any time receive payment or services from a third party for any aspect of the submitted
2. Do you have financial relationships with entities that could be perceived to influence, or that give the appearance of
potentially influencing, what you wrote in the submitted work?
3. Do you have any patents and copyrights, whether pending, issued, licensed and/or receiving royalties related to the
4. Do you have other relationships or activities that readers could perceive to have influenced, or that give the
appearance of potentially influencing, what you wrote in the submitted work?
Associate and Review Editors:
1. Is any author a spouse or significant other, a family member or a personal friend?
2. Have you collaborated on a research project or a publication with one or more of the authors within the past two
3. Do you have a business or professional partnership with any author?
4. Did you work with any of the authors as an advisor or in any other direct supervisory capacity in the past five years?
5. Did you work with any of the authors as a student or in any other direct subordinate capacity in the past five years?
6. Are you a current member of a committee or department that coincides with an affiliation of one or more authors?
7. Are you affiliated with the same institution as one of the authors? If so, has this resulted in interactions,
collaborations, or mutual interests that would compromise your impartiality in conducting this review?
8. Do you have financial interests or business relations with any organization involved in this research or in the
preparation of the manuscript?
9. Do you have any financial interest in the content of the manuscript that might affect your ability to perform an
Associate Editors must report actual or potential conflicts of interest to the journal's Editor-in-Chief and Review
Editors must report to the Associate Editor in charge of editing the manuscript in question. In case of doubt, please do
not hesitate to contact the Frontiers Editorial Office at firstname.lastname@example.org.
Publication Ethics and Malpractice
Frontiers takes issues relating to Publication Ethics very seriously. Frontiers endeavors to follow the guidelines and
best practice recommendations published by the Committee on Publication Ethics (COPE).
Authors are expected to abide by ethical standards in regards to the attribution of authorship, conflicts of interest,
respect of ethical considerations in the use of experimental animal and human subjects, financial support disclosures and
participation in the peer review process. Additionally, cases of invalid or fraudulent data, plagiarism and dual
submissions will constitute grounds for rejection. Please refer to the conditions for authors for complete details on the
Frontiers Reviewers and Editors are also expected to abide by ethical standards in regards to conflicts of interest,
confidentiality of the reviewed papers, objective evaluation of the work and preservation of reviewers’ anonymity
until acceptance. Editors bear the authority and responsibility for the acceptance of papers.
Frontiers will look at allegations of misconduct both before and after publication. Corrections or retractions will be
published if necessary, in order to maintain the integrity of the academic record. The Frontiers Editorial Office should be contacted immediately on
suspicions of misconduct.
Full Peer Review
The following articles types are attributed a full, standardized peer review:
Tier 1: Original Research Articles, Review Articles, Hypothesis & Theory Articles, Methods Articles, Perspective Articles, Technology Reports, Clinical Trial Articles, Mini Reviews, Clinical Case Studies, General Commentaries, Opinion Articles, and CPC.
Tier 2: Focused Reviews, Frontiers
Post Submission Steps
Following the Frontiers online manuscript submission, an associate editor of the relevant Frontiers Specialty is
immediately invited to take on the manuscript editorial assignment. After a preliminary content check, the associate
editor may either decide to send the manuscript out for review or recommend it for immediate rejection to the specialty
In the latter case, the specialty chief editor may confirm the associate editor’s recommendation of immediate
article rejection due to the following reasons:
- An objective error (generally accepted by the community and not one that would be debatable by some);
- An excessive number of language errors;
- Lack of research quality or ethical standards.
The specialty chief editor may, nevertheless, override the associate editor's recommendation and decide that the
manuscript deserves being reviewed, in which case he/she will assign the article to a new associate editor who agrees to
send the article for review.
The associate editor then assigns the article to at least two review editors, either selected from the Frontiers Board
of review editors or appropriately recruited among the experts in the area. The whole process described above is a rapid
one, since review editors are invited within one week from article submission and must accept or decline a review
invitation within a few business days.
Independent Review Phase
Within ten days after being assigned to an article, the review editors shall submit the standardized Frontiers
Independent Review Report via the online review forum. The associate editor is automatically notified as soon as each of
the Independent Review Reports is submitted.
During the Independent Review phase, the review editors assess the paper independently from each other and the authors,
according to our standardized review template.
Once all review editors have submitted an Independent Review Report, the associate editor is responsible for activating
the successive phase of the Frontiers Review, i.e. the Interactive Review Forum. Even if the Independent Review Reports
are unfavorable to the authors, the Interactive Review Forum must be activated to allow authors the opportunity of
Interactive Review Phase
Once the Associate Editor activates the Interactive Review Forum, authors are immediately notified to enter the forum,
where they are able to view the review comments. Authors are asked to respond and/or submit a revised manuscript within
15, 25 or 35 days, depending on the level of revisions requested by the Associate Editor.
The associate editor can access and post comments in the review forum anytime. Additionally, the associate editor
monitors the discussions occurring between authors and review editors within this forum, and ensures not only the
timeliness, but also the constructiveness of the participants’ interaction. Should a dispute arise at this stage,
the associate editor must act as a mediator, working with all parties involved to resolve the issues and even inviting new
review editors for further opinions. If the disagreement persists, the specialty chief editor is then obliged to enter the
Interactive Review Forum, examine the situation and take a final decision, as to whether the review should be ended by
article rejection or continued by a new set of editors.
When a disagreement cannot be resolved to the satisfaction of a review editor, the latter is in full right to withdraw
from the review at any phase, in which case the associate editor may choose to invite another review editor.
At this stage, a manuscript may be rejected for the following reasons:
- an objective error is found that cannot be corrected;
- experiments are found to be invalid;
- authors are unable or unwilling to address issues raised by the review editors.
The review is complete once all review comments are addressed to the review editors' satisfaction.
If the review editors are satisfied with the authors'efforts at amending the manuscript, they then briefly finalize
their Interactive Review Reports, which automatically notifies the associate editor of article acceptance. The associate
editor accepts the final version of the manuscript within five days, and this action does not require the approval of the
specialty chief editor.
Once a manuscript is accepted, the authors receive an automated notification informing them of the acceptance and the
provisional PDF will instantly appear online. Review editors are invited to publish a one-page joint commentary to be
linked to the published article, however this is not mandatory. Payment of the publication fee is required within thirty
days of acceptance and necessary before final publication of the manuscript.
Articles can only be rejected by the chief editor, while the associate editor who handles an article can only recommend
to reject an article. The chief editor may override an associate editor's recommendation to reject the article and insist
to call in further review editors to continue the review process.
If the submitted article is a Focused Review, i.e. a prestigious, invitation-
only, tier 2 review highlighting an outstanding tier 1 article, the previous Associate and Review Editors are assigned the
review of the new manuscript again (if available to take on the article). This manuscript is again written by the previous
authors and is an abridged and revised version of the original article following the author guidelines for Focused
Reviews. It requires a full peer review in regard to technical language, since it addresses a broader, less specialized
If the submitted article is a Frontiers Commentary,i.e. a prestigious,
invitation-only, tier 2 commentary emphasizing an outstanding tier 1 article, the original Specialty Chief Editor is
assigned to review the new manuscript. This manuscript is written by the Associate or Review Editor/s who reviewed the
original article and requires peer review in regard to technical language, since it addresses a less specialized
Short Peer Review
The following articles types are attributed a shortened peer review:
Tier 1: Editorials, Book Reviews, and Classifications.
Short peer reviews differ from full peer reviews mainly in two aspects: they are directly forwarded to the Interactive
Review phase and they may be reviewed by the Associate Editor alone. It is up to the Associate Editor’s
consideration if further reviewers are invited to the review process.
Therefore, following the Frontiers online manuscript submission, an Associate Editor of the relevant Frontiers
Specialty is immediately invited to take on the manuscript editorial assignment, which encompasses the role of the
reviewer, too. Since no Independent Review Report is required, the Associate Editor directly activates the Interactive
Review Forum by carrying out the review.
Interactive Review, and article acceptance and rejection follow exactly the same rules established for full peer