Cover image for Vol. 27 Issue 9

Edited By: Howard B. Eichenbaum

Impact Factor: 3.945

ISI Journal Citation Reports © Ranking: 2016: 68/258 (Neurosciences)

Online ISSN: 1098-1063

Author Guidelines

Online Submission and Peer Review
Wiley's Journal Styles and EndNote

Hippocampus is now receiving submitted manuscripts online at http://mc.manuscriptcentral.com/hipo .

All manuscripts should now be submitted online. To submit a manuscript, launch your web browser and go to http://mc.manuscriptcentral.com/hipo . Check for an existing user account by entering your email address in the space beneath the box that reads "Password Help." If you are submitting for the first time, and you do not find an existing account, create a new account by clicking on the words "Create Account" in the top right corner of the screen. Instructions are posted under the heading "Resources" on the login page and also within the site itself. Please be sure to read them carefully. If you experience difficulty during the submission process, contact technical support at ts.mcsupport@thomson.com.

Hippocampus is a member of the Neuroscience Peer Review Consortium. The Consortium is an alliance of neuroscience journals that have agreed to accept manuscript reviews from each other. If you submit a revision of your manuscript to another Consortium journal, we can forward the reviews of your manuscript to that journal, should you decide this might be helpful. You can find a list of Consortium journals and details about forwarding reviews at http://nprc.incf.org .

File Format Instructions for Online Submission

Manuscript file, tables, and figures must be submitted separately.

Submit your text in DOC or RTF format. Do not embed figures or tables in this document; these should be submitted as separate files.

Tables should be created with a word processor and saved in either DOC or RTF format. Do not embed tables in your text.

To ensure the highest print quality, your figures must be submitted in TIF format according to the following minimum resolutions:

  • 1200 dpi (dots per inch) for black and white line art (simple bar graphs, charts, etc.)
  • 300 dpi for halftones (black and white photographs)
  • 600 dpi for combination halftones (photographs that also contain line art such as labeling or thin lines)

Vector-based figures (e.g., figures created in Adobe Illustrator) should be submitted in EPS format.

Authors are encouraged to visit http://cpc.cadmus.com/da/ for more information regarding supported artwork formats.

In addition to the above resolution guidelines, color figures must be submitted in a CMYK colorspace. Do not submit color figures as RGB.

Do not submit figures in any of the following formats: JPG, GIF, PSD, CRD, PCT, PPT, PDF, XLS, DOC, BMP, 123 (or other Lotus formats).

At the end of a successful submission, a confirmation screen with manuscript number will appear and you will receive an e-mail confirming that the manuscript has been received by the journal. If this does not happen, please check your submission and/or contact tech support at ts.mcsupport@thomson.com .

General Information

Because of space constrains in publication of the journal, original research papers must be limited to 10 printed pages, based on an expectation of approximately 50,000 characters and 4-6 one-quarter to half page figures. During review, the editors may require shortening of text of limiting of figures if the composite exceeds 10 printed pages. The cost of reproduction of all color illustrations, however, must be borne by the author

Forms of Manuscripts

Papers reporting original research will be the major substance of the journal, but occasional short Commentaries will also be published. The Commentaries will be of three types: Historical Reviews of individual careers or areas of research; Updating Reviews that briefly summarize the state of knowledge in a particular subject area; and Speculative Reviews , in which new perspectives or hypotheses are outlined. The Speculative Reviews may take the form of Point-Counterpoint presentations by two or more authors with differing viewpoints on a topic area. The publication of a Commentary in Hippocampus will normally follow an invitation to the author(s) from the Editor. However, anyone interested in contributing a Commentary or suggesting a topic for one is invited to contact the Editor. The Editor also wishes to encourage neurobiologists to contribute to the journal by writing short letters, which will be considered for publication in a separate Letters to the Editor section. This section will provide a medium for communication and discussion, not only of points that arise from papers published in Hippocampus , but also of topics of general interest to the readership of the journal. The Editor reserves the right to invite replies or comments to such letters at his discretion.

Rapid Communications

Papers submitted as Rapid Communications will receive an expedited review and priority for publication once accepted. Rapid Communications should occupy no more than three journal pages including references (generally no more than 30) and figures. A typical journal page contains approximately 1,200 words. Thus, articles containing one page of illustrative material should normally be confined to approximately 2,000 words excluding references.

Rapid Communications should begin with an Abstract or Introductory Paragraph of less than 200 words summarizing the background, goals of the research, and conclusions. The body of the text should include an expanded background and rationale for the research and a brief overview of methods that reference papers providing detailed descriptions of methods. The bulk of the text should be devoted to the results and a brief discussion of the significance and implications of the research. No section headings (e.g., Materials and Methods, Results) should be used in this format. If, on the rare occasion, a more extensive description of methods is essential for understanding the results of the research, this text should be included at the end of the paper and titled, Detailed Methods. References should be cited and formatted as in standard Research Papers published in Hippocampus .

Review and Production Process

In general, submitted manuscripts will be confidentially refereed by at least two members of the Editorial Board. If the reviewers disagree on the acceptability of the manuscript, a third evaluation will be sought. In those cases in which the content of a manuscript is outside the field of expertise of members of the Editorial Board, it will be forwarded to qualified reviewers. To facilitate the review process, authors are encouraged to suggest the names of reviewers in addition to members of the Editorial Board whose expertise qualifies them to referee the paper. The actual selection of the reviewers, however, will be determined by the Editor, acting on the advice of the Section Editor and the Editorial Board. Based on the findings of the reviewers, a decision will be made by the Editor, and the author will be notified as soon as possible. In the case that revision of the manuscript is required, it should be noted that manuscripts not resubmitted within 3 months may be treated as new submissions.

Submission of a paper to Hippocampus will be taken to imply that it represents original research not previously published, except as an abstract, and that it is not being considered for publication elsewhere in similar form. At the time of submission, each manuscript should be accompanied by a statement from the submitting author that all coauthors agree to having their names listed as authors and that colleagues whose unpublished work is referred to, or who are acknowledged, agree to that.

If your paper is accepted, the author identified as the formal corresponding author for the paper will receive an email prompting them to login into Author Services; where via the Wiley Author Licensing Service (WALS) they will be able to complete the license agreement on behalf of all authors on the paper.

For authors signing the copyright transfer agreement

If the OnlineOpen option is not selected the corresponding author will be presented with the copyright transfer agreement (CTA) to sign. The terms and conditions of the CTA can be previewed in the samples associated with the Copyright FAQs below:

CTA Terms and Conditions http://authorservices.wiley.com/bauthor/faqs_copyright.asp

For authors choosing OnlineOpen

If the OnlineOpen option is selected the corresponding author will have a choice of the following Creative Commons License Open Access Agreements (OAA):

Creative Commons Attribution License OAA

Creative Commons Attribution Non-Commercial License OAA

Creative Commons Attribution Non-Commercial -NoDerivs License OAA

To preview the terms and conditions of these open access agreements please visit the Copyright FAQs hosted on Wiley Author Services http://authorservices.wiley.com/bauthor/faqs_copyright.asp and visit http://www.wileyopenaccess.com/details/content/12f25db4c87/Copyright--License.html.

If you select the OnlineOpen option and your research is funded by The Wellcome Trust and members of the Research Councils UK (RCUK) you will be given the opportunity to publish your article under a CC-BY license supporting you in complying with Wellcome Trust and Research Councils UK requirements. For more information on this policy and the Journal’s compliant self-archiving policy please visit: http://www.wiley.com/go/funderstatement.

Electronic proofs will be sent to the first author or the author designated for proofreading. All corrections should be clearly marked on the proofs, which should be returned to the publisher's office within 3 days. Costs for alterations in the proofs other than corrections of printer's errors may be charged to the authors. There will be no proofs for the Letters section. Reprints: Reprints may be purchased at https://caesar.sheridan.com/reprints/redir.php?pub=10089&acro=hipo.

Publication Charges

Currently, no page charges are levied against authors or their institutions for the publication of articles or the posting of associated supplementary material. With regard to color figures, online color is free. Printed color (no limit) is billed at a flat rate of $850 per figure.

Preparation of the Manuscript

The manuscripts should be typed double-spaced throughout with a 1" (2.5 cm) margin on all sides. All pages should be numbered consecutively, beginning with the title page. Manuscripts should be written using standard American spelling. The spelling of nontechnical terms should preferably follow that indicated in Webster's Third International Dictionary . The numbers one through nine should be spelled out; Arabic numerals should be used for numbers greater than nine and units of time and measure. All numbers should be spelled out when they appear as the first word of a sentence. Abbreviations should never be used at the beginning of a sentence.

Research papers should include a Title Page, Abstract, Introduction, Materials and Methods, Results, Discussion, References, Acknowledgments, and Figure Legends. Tables and figures should be submitted as separate files. Footnotes should not be used. If absolutely essential, they should be incorporated in the text, in parentheses.

Please consider the following guidelines in the Resource Identification Initiative. Hippocampus is participating in the Resource Identification Initiative, which aims to promote research resource identification, discovery, and reuse. This initiative, led by the Neuroscience Information Framework and the Oregon Health & Science University Library, provides unique identifiers for antibodies, model organisms, cell lines, and tools such as software and databases. These IDs, called Research Resource Identifiers (RRIDs), are machine-readable and can therefore be used to search for all papers in which a particular resource was used and to increase access to critical data to help researchers identify suitable reagents and tools.

As part of this pilot project, we ask authors to use RRIDs to cite the resources used in your research where applicable in the text, exactly as you would a regular citation or Genbank Accession number. For antibodies, we ask that you please include in your citation the vendor, catalogue number, and RRID in the text upon first mention in the methods section. For software tools and databases, please provide the name of the resource followed by the resource website if available, and the RRID. For model organisms, the RRID alone is sufficient.

We also ask that you please include the RRIDs in the list of keywords associated with your manuscript.

To Obtain Research Resource Identifiers (RRIDs):

1. Use the Resource Identification Portal, created by the Resource Identification Initiative Working Group.

2. Search for your research resource (please see the section titled “Search Features and Tips” for more information)

3. Click on the “Cite This” button to obtain the citation and insert the citation into your manuscript text.

If you have a resource that is not found within the Portal, we encourage you to register the resource with the appropriate resource authority. Information on how to do this is provided in the “Resource Citation Guidelines” section of the Portal.

If you experience any difficulties obtaining identifiers, please contact rii-help@scicrunch.org for assistance.

Example Citations:

Antibodies: "Wnt3 was localized using a rabbit polyclonal antibody C64F2 against Wnt3 (Cell Signaling Technology, Cat# 2721S, RRID: AB_2215411)"

Model Organisms: "Experiments were conducted in c. elegans strain SP304 (RRID:CGC_SP304)"

Cell lines: "Experiments were conducted in PC12 CLS cells (CLS Cat# 500311/p701_PC-12, RRID:CVCL_0481)"

Tools,Software, and Databases: "Image analysis was conducted with CellProfiler Image Analysis Software, V2.0 (http://www.cellprofiler.org, RRID:nif-0000-00280)"

Title Page. The Title Page should include the complete title of the paper, together with the name(s) of the author(s) and institutional affiliations (to department level); a running (abbreviated) title, not exceeding 60 characters and spaces; the number of text pages, figures, and tables; and the name, full address, telephone number, and E-mail address of the author to whom correspondence, including proofs, should be sent, and all grant information in the following format: Grant sponsor:______; Grant number:______. A list of five key words that do not occur in the title should be included for abstracting purposes. The title should represent the contents of the paper and should not include technical jargon, chemical formulas, or arbitrary abbreviations.

Abstract. The Abstract should be clearly written in 300 words or less and should succinctly state the objectives of the study, experimental design, major observations and conclusions, and their major significance. The abstract should be intelligible to neuroscientists in general and should thus be free of specialized jargon and abbreviations. References should generally not be cited in the abstract, but if they are, the complete citation should be given (e.g., Conti F et al., J Comp Neurol 1994; 343:554–565).

Video Abstracts
A video abstract can be a quick way to make the message of your research accessible to a much larger audience. Wiley and its partner Research Square offer a service of professionally produced video abstracts, available to authors of articles accepted in this journal. You can learn more about it at www.wileyauthors.com/videoabstracts. If you have any questions, please direct them to videoabstracts@wiley.com.

Introduction. The Introduction section should provide sufficient background information to make clear the rationale and objectives of the reported studies. Extensive literature reviews are generally not necessary.

Materials and Methods. The Materials and Methods section should be concise but should adequately describe experimental procedures to allow for replication of the reported experiments. Wherever possible, references should be made to published protocols. Excessively detailed descriptions of widely used techniques or details of procedures that will not be of general interest to the reader should be avoided. Submission of a paper to Hippocampus implies that all animal experimentation reported in the paper has been conducted in accordance with the guidelines laid down by the NIH ( NIH Guide for the Care and Use of Laboratory Animals ) in the USA or by the European Communities Council. When human subjects are used, adequate documentation should be included in the manuscript that the experiments were undertaken with the understanding and consent of each subject. It is assumed that with the publication of a paper in Hippocampus the authors will make available, whenever possible, reagents, such as antibodies, that were used in the research and are not commercially available.

Results and Discussion. In the Results section, findings should be described without discussion of their significance. Authors are encouraged to use subheadings to clarify the organization of this section. In the Discussion, authors should provide an interpretation and validation of their findings, conclusions, and their significance in relation to previously published work. Repetition of the results or extensive review of the literature should be avoided.


It is the responsibility of the author(s) that each reference in the text appears in the References section and that each reference listed in this section is correct and cited in the text. References should be cited in the text by author's name followed by year of publication, thus: Ben-Ari (1981) or (Ben-Ari, 1981); Squire and Zola (1983) or (Squire and Zola, 1983). In the case that there are more than two co-authors: Lopes da Silva et al. (1989) or (Lopes da Silva et al., 1989). A typical citation should follow the form: Data reported by Ben-Ari (1981) have recently been confirmed by others (Lopes da Silva et al., 1989). When more than one reference is cited, the references should be listed in chronological order. A paper that is in preparation or submitted to a journal but not yet accepted for publication should not be included in the References section; reference to a paper of this type should be cited as "unpublished observations", and the initials and surname(s) must be listed in the text for the author(s) whose unpublished experiments are cited.

In the References section, papers should be listed in alphabetical order according to the name of the first author. In the case of several references with the same first author but more than one co-author, the references should be listed in chronological order. When references are made to more than one paper by the same first author published in the same year, the postfix a, b, c, etc., should be used both in the text and in the References section; for papers published in different years, the references should be listed in chronological order. The name of the author(s) should be followed by the full title of the paper, and the complete source of the reference (abbreviations of journals should follow those used in Index Medicus), including the year of publication, volume number, and the first and last pages. The form used in the References section should follow APA reference style according to the following examples:

Journal article:
Goldstein, H. (1979). Improving police: A problem-oriented approach. Crime & Delinquency, 3, 236–258

Goldstein, H. (1990). Problem-oriented policing. New York, NY: McGraw-Hill. Miles, M. B., & Huberman, A. M. (1994). Qualitative data analysis (2nd ed.). Thousand Oaks, CA: Sage. .

Edited Book:
Gilbert, D. G., McClernon, J. F., Rabinovich, N. E., Sugai, C., Plath, L. C., Asgaard, G., ... Botros, N. (1983). Situational crime prevention: Its theoretical basis and practical scope. In M. Tonry, & N. Morris (Eds.), Crime and justice: An annual review of research (Vol. 4, pp. 225–256). Chicago, IL: University of Chicago Press.

Paper Presentation:
Weiss, A., & McGarrell, E. F. (1996, November). The impact of increased traffic enforcement on crime. Paper presented to the Annual Meeting of the American Society of Criminology, Chicago, IL.

Muellbauer, J. (2007, September). Housing, credit, and consumer expenditure. In S. C. Ludvigson (Chair), Housing and consumer behavior. Symposium conducted at the meeting of the Federal Reserve Bank of Kansas City, Jackson Hole, WY.

Conference paper abstract retrieved online:
Liu, S. (2005, May). Defending against business crises with the help of intelligent agent based early warning solutions. Paper presented at the Seventh International Conference on Enterprise Information Systems, Miami, FL. Abstract retrieved from http://www.iceis.org/iceis2005/abstracts_2005.htm

Proceedings published regularly online:
Katz, I., Gabayan, K., & Aghajan, H. (2007). A multi-touch surface using multiple cameras. In J. Blanc-Talon, W. Philips, D. Popescu, & P. Scheunders (Eds.), Lecture Notes in Computer Science: Vol. 4678. Advanced Concepts for Intelligent Vision Systems (pp. 97–108). Berlin, Germany: Springer-Verlag. doi:10.1007/978-3-540-74607-2

Schnittker, J. (2004). Education and the changing shape of the income gradient in health (Unpublished doctoral dissertation or master’s thesis). Name of institution, location.

Muthen, L. K., & Muthen, B. O. (2004). Child care and child development (Report No. xxx). Los Angeles, CA: Publisher.

Smith, I. M. (2011). U. S. Patent No. 235,445. Place: Publisher


Mathews, J., Berrett, D., & Brillman, D. (2005, May 16). Other winning equations. Newsweek, 145(20), 58–59.

Preparation of Illustrations. Illustrations submitted for publication should be the exact size that they will appear in print. The size of illustrations should not exceed the dimensions of the journal itself (7" x 9 3/8", or 17.8 cm x 23.8 cm). All figures, both line drawings and halftones, should be appropriately lettered and labeled. Lettering should remain at least 1/4" (6 mm) from the edges of figures to allow for trimming. The cost for printing color art is $850 per figure. The cost will be higher if the color art is submitted other than as specified above. Figures considered to be of insufficient quality for publication will be returned to the author(s) for correction. All figures must be referred to in the text and must be numbered and cited consecutively (Fig. 1, Fig. 2, etc.). Each figure should be accompanied by an explanatory legend that makes the illustration understandable without need for reference to the text.

Guidelines for cover submissions If you would like to send suggestions for artwork related to your manuscript to be considered to appear on the cover of the journal, please follow these general guidelines.

Preparation of Tables. Each table should be typed, double-spaced, as a separate doc or rtf file. The table should include an informative title and a legend that makes the table comprehensible without resorting to the text. Each column in the table should have a heading, and the columns should be formatted to be easily distinguishable by the compositor. If the table is highly complex, it should be submitted as a graphic in tiff or eps format so as to avoid introduction of errors during typesetting that would be difficult to detect in the proofreading stage. In this case, tables should be prepared using the same considerations one would apply to a line drawing illustration. All tables must be referred to in the text and must be numbered and cited consecutively (Table 1, Table 2, etc.).

Units, Symbols, and Abbreviations . For symbols of physical units, the SI system (Système International d' Unités) should be used. Abbreviations should not be used excessively in the text, and in all cases the word or words to be abbreviated should be written in full on the first occurrence, followed by the abbreviation in parentheses. The same abbreviations should be used in both the text and figures. If many abbreviations are used, including those used repeatedly in the tables or figures, they should be listed on a separate sheet, entitled Abbreviations.

Posters deposited in public access collections will not be considered as prior publication for the purposes of our acceptance at Hippocampus. However, the editors reserve the right to ask for the poster to insure that the information contained in the paper goes beyond or is different from that contained in the poster in some way and is not a duplicate publication.

Data Set Access. Authors are encouraged to make available the data sets relevant to the study and add reference to how the repository can be accessed.

Referrals to the Open Access Journal, Brain and Behavior
Hippocampus works together with Wiley’s Open Access journal, Brain and Behavior, to enable rapid publication of good quality research that is unable to be accepted for publication by our journal. The editor of Hippocampus may offer the authors the option to have their manuscript directly transferred to Brain and Behavior. The transfer will occur on-line and guarantee the anonymity of the peer-review process.  It will not require reformatting or rewriting the manuscript at this stage.  Brain and Behavior will render an editorial decision within a short time after the transfer.  The Editor of Brain and Behavior will accept submissions that report well-conducted research which reaches the standard acceptable for publication. Accepted papers can be published rapidly, typically within 15 days of acceptance.  Brain and Behavior is an Open Access journal and article publication fees apply.  For more information please go to http://www.brain-behavior.com/info.

Peer Review Scorecard Pilot
Hippocampus is participating in Wiley's pilot of transferable peer review in which reviewers complete a standard scorecard in addition to their usual review. Authors of original research articles rejected with completed scorecards will be invited to transfer the manuscript, reviews, and scorecard to any of the other participating journals in the pilot. Authors will have the opportunity to revise their manuscript according to the review comments prior to transfer if they wish to do so. A list of participating journals and more information about the pilot can be found here. We believe that this system of preserving original peer review for the next journal's use will decrease repetitious review, save authors, reviewers and editors valuable time and significantly increase the speed to publication for many papers.

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Production Editor