To be published in Behavioral and Brain Sciences (in press)

© Cambridge University Press 2016


Behavioral and Brain Sciences

Call for Commentary Proposals


Aggression and Violence Around the World: A Model of CLimate, Aggression, and Self-control in Humans (CLASH)

Paul A. M. Van Lange, Maria I. Rinderu, and Brad J. Bushman

Deadline for Commentary Proposals: Thursday June 9, 2016


About Commentary Proposals: When a target article or recent book has been accepted for BBS commentary, the editorial office sends out the call for commentary proposals to thousands of people. Commentary proposals help the BBS editors craft a well-balanced commentary invitation list.


If this target article interests you as a possible subject for commentary, please download the full pre-print to see if you would like to propose a commentary.


Download Target Article Preprint


If you are interested please follow the instructions below the target article information. Please keep in mind that we are not asking you to submit a commentary -- but rather, a short proposal in order to be considered as an invited author after the proposal deadline. If you are not interested, no action is required.


Abstract: Worldwide there are substantial differences within and between countries in aggression and violence. Although there are various exceptions, a general rule is that aggression and violence increase as one moves closer to the equator, which suggests the important role of climate differences. While this pattern is robust, theoretical explanations for these large differences in aggression and violence within countries and around the world are lacking. Most extant explanations focus on the influence of average temperature as a factor that triggers aggression (The General Aggression Model), or the notion that warm temperature allows for more social interaction situations (Routine Activity Theory) in which aggression is likely to unfold. We propose a new model of CLimate, Aggression, and Self-control in Humans (CLASH) that seeks to understand differences within and between countries in aggression and violence in terms of differences in climate. Lower temperatures, and especially larger degrees of seasonal variation in climate, calls for individuals and groups to adopt a slower life history strategy, and exert more focus on the future (versus present), and a stronger focus on self-control. The CLASH model further outlines that slow life strategy, future orientation, and strong self-control are important determinants of inhibiting aggression and violence. We also discuss how CLASH is different from other recently developed models that emphasize climate differences for understanding conflict. We conclude by discussing the theoretical and societal importance of climate in shaping individual and societal differences in aggression and violence.


Keywords: aggression; climate; seasonal variation; self-control; temperature; time-orientation; violence.


Commentary Proposal Submission Instructions


In order to nominate yourself for a commentary invitation, follow the instructions below and submit a commentary proposal via the BBS Editorial Manager site: 


You may also find these instructions available in PDF form at


If you received the call for commentary proposals, your username and password should have been included inside the email. At the Editorial Manager (EM) site you can register a new user account, update your existing information, or retrieve your username and password.


Information on recently accepted target articles or books that are currently open for commentary proposal submission are available at





1. All proposal authors, including any possible co-authors, listed at the top of your submission document.


2. What aspect of the target article or book you would anticipate commenting on.


3. The relevant expertise you would bring to bear on the target article or book.+


>> Please number these sections in your proposal: 1., 2., 3. <<


+Including your relevant expertise saves the editors valuable time when evaluating proposals. If one of these requirements is missing, your proposal will be returned for resubmission.





In addition to the open “Call for Commentary Proposals,” we invite commentators who do not submit proposals—these include reviewers of the paper, scholars whose work is discussed in the paper, and commentators suggested by the authors. (Obviously, these can be overlapping sets.) Once we subtract this set, only about 20 submitted proposals from the Call for Commentary Proposals can be invited to write a commentary.


Commentary selection is necessarily multifactorial. It must be balanced to a degree across the various fields of cognitive science, point of view of the article, and several other aspects of academic diversity. The number of proposals can vary widely, however, depending on the topic, the range is from 15 to 150! In the latter case, when we can accept only a little over 1 in 10 of the proposals, a few things will facilitate a positive reading of a proposal, and hopefully acceptance, given the constraints:


1. The proposal for the commentary should not be longer than the commentary, 1,000 words. 100-500 is optimal, and we value succinctness.  On the other hand, “I intend to comment on X aspect of the target article” is not enough.  Are you for it, against it, or extending it?  


2. Under no circumstances should proposers simply write a commentary and submit it to us.


3. Proposers should clearly state what aspect of the target article they intend to comment on.  It’s quite obvious when proposers are using the commentary forum only to promote their own research and not engage with the target article. Such proposals are routinely declined.


4. Concerning “the relevant expertise you would bring to bear”: While the editors have a generally good idea of who is active in the fields of the target article, we must cover a wide range and may be unaware of the people who have been most productive and influential in a given area, or the scholars who have engaged in heated debate with the authors in the past. So, the editors will be greatly helped if every proposer states their position in the field and lists between 2-10 relevant publications, again succinctly. On the other side of the spectrum, under no circumstances should an entire CV be included.


5. BUT … it’s not all about articles previously published, or position in the field. It’s not necessary to have published in the area, and it’s not necessary to have a current academic appointment.  We make efforts to include proposals coming both from established figures and total newcomers. An engaging idea elicited by the article, an illuminating application of the target article concept to an allied field, or a truly clever riposte is often all that’s needed.


6. Being a co-author on multiple proposals directed to one target article will almost certainly remove one set of your co-authors or the other from contention altogether, which will put you in an unpleasant game theoretic situation with your colleagues. Do this carefully, if at all.


7. We make our choices mostly on quality and fit, but we do want to open up BBS to as many individuals as possible. If you’ve written one or more other commentaries recently, your odds of having another one accepted will correspondingly go down, though not to zero.





1. Log-in as Author


Log-in to your BBS Editorial Manager account as an author:


If you do not have an account, please visit the site and register. You can also submit a request for missing username and password information if you have an existing account.


2. Submit New Manuscript


Within your author main menu please select Submit New Manuscript.


3. Select Article Type


Choose the article type of your manuscript from the pull-down menu. Commentary proposal article types are temporarily created for each accepted target article or book. Only select the commentary proposal article type that you wish to submit a proposal on.  For example: "Commentary Proposal (Van Lange)"

4. Enter Title


Please title your proposal submission by indicating the relevant first author name of the target article or book. For example: "Commentary Proposal on Van Lange."


5. Co-Authors


Commentary proposal submissions are limited to a single author. If you are proposing to write a commentary with co-authors, the system will not allow you to enter their information here. Instead, include their names at the top of the commentary proposal document you upload. These potential co-authors need not contribute to the commentary proposal itself.


6. Attach File


The only required submission Item is your commentary proposal in MSWord or RTF format. In the description field please add the first author name of the target article or book. For example: "Commentary Proposal on Van Lange."


7. Approve Your Submission


Editorial Manager will process your commentary proposal submission and will create a PDF for your approval. On the Submissions Waiting for Author's Approval page, you can view your PDF, edit, approve, or remove the submission. Once you have approved the submission, the PDF will be sent to the editorial office. Please note: it may take several minutes for the blue Action Menu to appear, allowing you to approve the submission.


8. Editorial Office Decision


At the conclusion of the commentary proposal period, the editors will review all the submitted commentary proposals. An undetermined number of commentary proposals will be approved and those author names will be added to the final commentary invitation list. At that time you will be notified of the decision. If you are formally invited to submit a commentary, you will be asked to confirm your intention to submit by the commentary deadline.



Please do not write a commentary unless you have received an official invitation!


If you have any questions or problems, please email