Hadyn Ellis

{{Short description|Welsh psychologist}}

{{Infobox scientist

| honorific_prefix = Professor

| name = Hadyn Ellis

| honorific_suffix = {{postnominals|country=GBR|size=100%|CBE}}{{cite web|url=http://news.bbc.co.uk/1/hi/education/3799843.stm |title=UK | Education | Teachers win top honours |work=BBC News |date=11 June 2004 |accessdate=24 November 2015}}

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|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

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|citizenship = United Kingdom

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|field = Psychology

|work_institutions = Cardiff University, University of Aberdeen

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|known_for = Face perception, Capgras delusion

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Hadyn Douglas Ellis (25 October 1945 – 2 November 2006)[https://www.cardiff.ac.uk/obituaries/obituary/hadyn-ellis Professor Hadyn Ellis] was a Welsh psychologist who was influential in the field of face processing and who had some 160 publications to his name.{{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}}{{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}}

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{{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}} and also the understanding of delusions of misidentification such as Capgras delusion.{{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 }} 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{{Cite book |isbn = 978-0765806475|title = Validation in Psychology|last1 = Ellis|first1 = Hadyn|last2 = MacRae|first2 = Neil|year = 2001}} and Perceiving and Remembering Faces.{{Cite book |isbn = 978-0122062209|title = Perceiving and remembering faces|last1 = Davies|first1 = Graham|year = 1981}}

After his death from bowel cancer, Cardiff University recognised his contribution to science and the university by naming a building in his honor.{{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}} 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{{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}} and Georgie Powell.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 }}{{clarify|date=November 2015}}