{{Short description|Welsh psychologist}} {{Infobox scientist | honorific_prefix = Professor | name = Hadyn Ellis | honorific_suffix = {{postnominals|country=GBR|size=100%|CBE}}<ref>{{cite web|url=https://news.bbc.co.uk/2/hi/uk_news/education/3799843.stm |title=UK &#124; Education &#124; Teachers win top honours |work=BBC News |date=11 June 2004 |access-date=24 November 2015}}</ref> |image = |image_size = |caption = |birth_name = Hadyn Douglas Ellis |birth_date = {{Birth date|1945|10|25|df=y}} |birth_place = Newport, Wales |death_date = {{death date and age|2006|11|2|1945|10|25|df=y}} |death_place = Cardiff, Wales |residence = |citizenship = United Kingdom |ethnicity = |field = Psychology |work_institutions = Cardiff University, University of Aberdeen |alma_mater = |doctoral_advisor = |doctoral_students = |notable_students = |known_for = Face perception, Capgras delusion |author_abbrev_bot = |author_abbrev_zoo = |influences = |influenced = |prizes = |religion = |footnotes = |signature = |spouse = }}

'''Hadyn Douglas Ellis''' (25 October 1945 – 2 November 2006)<ref>[https://www.cardiff.ac.uk/obituaries/obituary/hadyn-ellis Professor Hadyn Ellis]</ref> was a Welsh psychologist who was influential in the field of face processing and who had some 160 publications to his name.<ref>{{cite web |url=http://www.cardiff.ac.uk/for/staff/obituaries/profiles/ellis-hadyn.html |title=Professor Hadyn Ellis CBE DSc (1945-2006) |publisher=Cardiff.ac.uk |date= |accessdate=24 November 2015 |archive-date=23 September 2013 |archive-url=https://web.archive.org/web/20130923080316/http://www.cardiff.ac.uk/for/staff/obituaries/profiles/ellis-hadyn.html |url-status=dead }}</ref><ref>{{Cite web|url=https://scholar.google.co.uk/citations?user=8o6e_P0AAAAJ|title=Hadyn Ellis - Google Scholar Citations|website=scholar.google.co.uk|access-date=2017-05-03}}</ref>

For the largest part of his career he worked at Cardiff University, where he became pro-vice chancellor for research in 1994. He also made significant contributions to research strategy at the ESRC.

His research into face perception had significant contribution to eyewitness testimony<ref>{{cite web|url=https://www.ncjrs.gov/App/Publications/abstract.aspx?ID=92091 |title=NCJRS Abstract - National Criminal Justice Reference Service |publisher=Ncjrs.gov |date= |accessdate=24 November 2015}}</ref> and also the understanding of delusions of misidentification such as Capgras delusion.<ref>{{cite journal | doi=10.1016/S1364-6613(00)01620-X | pmid=11287268 | volume=5 | issue=4 | title=Capgras delusion: a window on face recognition | journal=Trends in Cognitive Sciences | pages=149–156| year=2001 | last1=Ellis | first1=Hadyn D. | last2=Lewis | first2=Michael B. | s2cid=14058637 }}</ref> Ellis is also considered to be the person who coined the term cognitive neuropsychiatry.

During his career he also wrote many books, including ''Validation in Psychology: Research Perspectives''<ref>{{Cite book |isbn = 978-0765806475|title = Validation in Psychology|last1 = Ellis|first1 = Hadyn|last2 = MacRae|first2 = Neil|year = 2001}}</ref> and ''Perceiving and Remembering Faces''.<ref>{{Cite book |isbn = 978-0122062209|title = Perceiving and remembering faces|last1 = Davies|first1 = Graham|year = 1981}}</ref>

After his death from bowel cancer, Cardiff University recognised his contribution to science and the university by naming a building in his honor.<ref>{{cite web|url=http://medicine.cf.ac.uk/place/hadyn-ellis-building-cathays-park/ |title=School of Medicine |publisher=Medicine.cf.ac.uk |date=30 July 2013 |accessdate=24 November 2015}}</ref> Additionally, the Hadyn Ellis Prize is awarded annually to research students at Cardiff University for the best PhD dissertation, previous winners of which have been Joseph Sweetman<ref>{{cite web|url=http://psychology.exeter.ac.uk/staff/index.php?web_id=Joseph_Sweetman |title=Staff profiles - Psychology - University of Exeter |publisher=Psychology.exeter.ac.uk |date= |accessdate=24 November 2015}}</ref> and Georgie Powell.<ref>http://sites.cardiff.ac.uk%2Fwarc%2Ffiles%2F2014%2F06%2F5-year-plan-2014-2019.doc&usg=AFQjCNHngHKZjCFA9qCcgPGcdKTOGoZKzg&bvm=bv.108194040,d.ZWU{{Dead link|date=January 2020 |bot=InternetArchiveBot |fix-attempted=yes }}</ref>{{clarify|date=November 2015}}

==References== {{reflist}}

{{Psychology|state=collapsed}} {{Authority control}}

{{DEFAULTSORT:Ellis, Hadyn}} Category:Academics of Cardiff University Category:1945 births Category:Commanders of the Order of the British Empire Category:2006 deaths Category:20th-century British psychologists Category:Deaths from cancer in Wales Category:Deaths from colorectal cancer in the United Kingdom