{{short description|American medical psychologist (1948–2005)}} {{MCN|date=May 2026}} {{infobox scientist |name=Andrew Mattison |image=Familypracticpic.jpg |caption=Mattison {{circa|1978}} |birth_name=Andrew Michael Mattison |birth_date={{birth date|1948|8|5}} |birth_place=New York City, U.S. |death_date={{death date and age|2005|12|29|1948|8|5}} |education=Xaverian High School<br>Fairfield University<br>Stony Brook University<br>United States International University (PhD) |occupation=Medical psychologist |fields=Medical psychology, sexology }} '''Andrew Michael Mattison''' (August 5, 1948 – December 29, 2005) was an American medical psychologist and researcher. He performed influential research in both clinical and social aspects of sexology, as well as drug use.<ref name="coleman" /> He spent the majority of his career as a professor, practicing psychotherapist, and research scientist at the University of California, San Diego.
== Early life == Mattison was born in Brooklyn, NY. He graduated from Xaverian High School in 1966 and got his Bachelor's Degree in English Literature at Fairfield University. He graduated with a Master's in social work from the Stony Brook University in New York.<ref>{{Cite journal|last1=Coleman|first1=Eli|last2=Ross|first2=Michael W.|date=August 2006|title=In memorium: Andrew Michael Mattison, M.S.W., Ph.D.|journal=Journal of Sex Research|language=en|volume=43|issue=3|pages=207|doi=10.1080/00224490609552318|s2cid=143672920 |issn=0022-4499}}</ref> He received his Ph.D. from United States International University<ref name="coleman" /> (now Alliant International University) in 1975, with the dissertation ''Onset of Erectile Dysfunction in Diabetic Males''.<!-- uncited --> His best-known book was ''The Male Couple: How Relationships Develop'', coauthored with his partner David McWhirter (March 29, 1932 - July 28, 2006).<ref name="coleman">{{cite journal | last1= Coleman |first1 = Eli |last2 = Ross |first2 = Michael W. | date = August 2006 | title = Andrew Michael Mattison, M.S.W., Ph.D. | journal = Journal of Sex Research | volume = 43 | issue = 3 | page = 207 | doi=10.1080/00224490609552318|s2cid = 143672920 }}</ref> The book argued that gay male relationships have particular tendencies distinct from other categories of sexual relationships, an innovative thesis that encouraged the growth of a new field, homosexuality studies. However, the book was also used by anti-gay marriage activists in legal arguments.
== Career == Mattison later began studying the use of party drugs by gay men, a controversial subject, which eventually led to a more thorough investigation of drug use in general.<ref name="coleman" /> In 2000 he cofounded the University of California Center for Medicinal Cannabis Research, of which he was co-director until his death.<ref name="williams">{{cite news|author=Williams, Jack |date=15 January 2006 |title=Andrew Mattison; researcher, expert on gay relationships |work=The San Diego Union-Tribune |url=http://www.utsandiego.com/uniontrib/20060115/news_lz1j15mattiso.html |url-status=dead |archive-url=https://web.archive.org/web/20150406182057/http://www.utsandiego.com/uniontrib/20060115/news_lz1j15mattiso.html |archive-date=2015-04-06 }}</ref>
He died of stomach cancer at the age of 57.<ref name="coleman" />
==References== <references />
==External links== *[http://www.signonsandiego.com/uniontrib/20060115/news_lz1j15mattiso.html Obituary] from the San Diego Union-Tribune. *[http://www.cmcr.ucsd.edu/ Center for Medicinal Cannabis Research] *https://books.google.com/books?id=0sHWnt9WmRsC&dq=mcwhirter+i+mattison+badania&pg=PA332
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{{DEFAULTSORT:Mattison, Andrew}} Category:American psychiatrists Category:Cannabis researchers Category:University of California, San Diego faculty Category:American sexologists Category:1948 births Category:2005 deaths Category:Deaths from stomach cancer Category:Psychology writers on LGBTQ topics Category:United States International University alumni Category:American LGBTQ scientists Category:American gay writers Category:Gay scientists Category:20th-century American LGBTQ people Category:21st-century American LGBTQ people Category:LGBTQ psychologists