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 == Useful sources for updating this and related articles == 

 Wikipedia has a lot of interesting articles based on the ongoing research in behavior genetics, both in humans and in nonhuman animals. I've been reading university textbooks on genetics ""for fun"" since the 1980s, and for even longer I've been visiting my state flagship university's vast BioMedical Library to look up topics on human medicine and health care policy. That university has long been a center of research on human behavior genetics, being the site of a major study of monozygotic twins reared apart. On the hypothesis that better sources build better articles as all of us here collaborate  to build an encyclopedia, I thought I would suggest some sources for updating the articles on behavior genetics and related topics. The  Wikipedia guidelines on reliable sources in medicine provide a helpful framework for evaluating sources.  

 The guidelines on reliable sources for medicine remind editors that ""it is vital that the biomedical information in all types of articles be based on reliable, third-party, published sources and accurately reflect current medical knowledge.""  

  

 The guidelines, consistent with the  general Wikipedia guidelines on reliable sources, remind us that all ""Wikipedia articles should be based on reliable, published secondary sources"" (emphasis in original). They helpfully define a primary source in medicine as one in which the authors directly participated in the research or documented their personal experiences. By contrast, a secondary source summarizes one or more primary or secondary sources, usually to provide an overview of the current understanding of a medical topic. The general Wikipedia guidelines let us know that ""Articles should rely on secondary sources whenever possible. For example, a review article, monograph, or textbook is better than a primary research paper. When relying on primary sources, extreme caution is advised: Wikipedians should never interpret the content of primary sources for themselves."" 

 Other Wikipedians who watch the article Behavioural genetics did all of us a great favor on the article talk page by suggesting helpful sources. In particular,  suggested an authoritative textbook on behavior genetics, covering both the human and the animal research, and following up on his suggestion led me to several other helpful sources with similar subject cataloging in libraries.  

 Noting that this article, currently titled Quantitative human behavioural genetics, is listed as a start-class, high-importance article by the WikiProject Genetics, I will start a workpage of an article update draft in my user space, relying on the sources recommended on the article talk page and on others listed here (in approximate order of date of publication, which is also almost but not exactly the order in which I have read them over the last few years):  

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 * {{Cite book |last1=Flint |first1=Jonathan |last2=Greenspan |first2=Ralph J. |last3=Kendler |first3=Kenneth S. |title=How Genes Influence Behavior |url=http://books.google.com/books?id=wyRsPgAACAAJ |date=28 January 2010 |publisher=Oxford University Press  |isbn=978-0-19-955990-9  |page= |quote= |laysummary=http://ajp.psychiatryonline.org/article.aspx?articleID=115960 |laydate=