Michael Stirrat

Sexual Selection and Trust Games

(Ph.D – Psychology) funded by EPSRC DTG

Social perception of facial trustworthiness and decisions to trust in economic games are biased by facial cues such as attractiveness and self-similarity. I present evidence that trust and reciprocation decisions in trust games are biased by mechanisms resulting from sexual selection. Trust and reciprocation decisions (related to facial characteristics) are measurably biased by mate choice, mating display, and mating competition considerations.

Other interests: Evolution of Cooperation/Coordination; Face Perception; Social Attribution; Psychology of Trust; Psychology of Generosity/Helping; Psychology of Religion; Evolution of Language/languages; Decision and Game Theory.

Publications

M Stirrat, J F Lawson and D I Perrett. Male self-rated quality modulates sexual display and strategic alliance behaviour in the Trust Game. (in submission)

M Stirrat, M Gumert and D I Perrett. Food sharing and sex: The relationship between attractiveness and payment preferences on dinner dates. (in submission)

S M Horning, Davis , H P, Stirrat, M , and Cornwell, R E. Atheistic, Agnostic, and Religious Older Adults on Well-Being and Coping Behaviors. (in submission)

M. Stirrat and D.I. Perrett. Valid facial cues to cooperation and trust: Male facial width and trustworthiness. Psychological Science (forthcoming: Manuscript availabe).

Stephen, I D, Law Smith, M J, Stirrat, M R , and Perrett, D I. Facial skin colouration affects perceived health of human faces. International Journal of Primatology (forthcoming) doi: 10.1007/s10764-009-9380-z

Cornwell R, Law Smith M, Boothroyd L, Moore F, Davis H, Stirrat M, Tiddeman B, Perrett D. Reproductive strategy, sexual development and attraction to facial characteristics Philosophical Transactions of the Royal Society B: Biological Sciences 361 (1476) , 2143 - 2154 (2006) (Epub 03 Nov 2006) doi: 10.1098/rstb.2006.1936

Law Smith M, Perrett D, Jones B, Cornwell R, Moore F, Feinberg D, Boothroyd L, Durrani S, Stirrat M, Whiten S, Pitman R, Hillier S. Facial appearance is a cue to oestrogen levels in women Proceedings of the Royal Society B: Biological Sciences 273 (1583) , 135 - 140 (2006) (Epub 01 Nov 2005) doi: 10.1098/rspb.2005.3296

B Tiddeman, Stirrat M, Perrett D. “Towards Realism in Facial Image Transformation: Results of a Wavelet MRF Method.” Computer Graphics Forum 449-456 (2006) doi: 10.1111/j.1467-8659.2005.00870.x

B Tiddeman, Stirrat M , Perrett D. “Towards Realism in Facial Prototyping: Results of a Wavelet MRF Method.” Proc. Theory and Practice of Computer Graphics , Lever, L, McDerby, M (eds) 105-111 (2006) doi: 10.1111/j.1467-8659.2005.00870.x

Jones B, Perrett D, Little A, Boothroyd L, Cornwell R, Feinberg D, Tiddeman B, Whiten S, Pitman R, Hillier S, Burt D, Stirrat M, Law Smith M, Moore F. Menstrual cycle, pregnancy and oral contraceptive use alter attraction to apparent health in faces Proceedings of the Royal Society B: Biological Sciences 272 (1561) , 347 - 354 (2005) (Epub 17 Feb 2005) doi: 10.1098/rspb.2004.2962

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Employment

2010-2011 – Post-doctorate Research Fellow, University of St Andrews

2009-2010 – Part-time Lecturer, University of St Andrews

2002-2006 – University of St Andrews, St Andrews

2002-2006 – Open University (Scotland)

1997-2001 – University of Edinburgh Computing Services, Edinburgh

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Teaching

2009-2010 – Guest Lecturer, University of St Andrews

2008-2009 – Guest Lecturer, PS5012

2006-2007 – Co-Supervisor (with David Perrett)

2005-2006 – Co-Supervisor (with David Perrett)

2002-2006 – Associate Lecturer, Open University ( Scotland )

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Conferences

Stirrat, M. R., and D. I. Perrett. "Male Dominance and Female Facial Attractiveness Modulate Behaviours in Trust Games." Paper presented at the 20th Annual Meeting of the Human Behavior and Evolution Society, Kyoto, Japan, June 4-8, 2008.

Stirrat, M. R., Jamie F. Lawson, Martin A. Sharp, Emad A. S. Al Dujali, Ian D. Stephen, and D. I. Perrett. "Fear of Punishment: Testosterone Elicits Trustworthiness in Trust Games." Paper presented at the 19th Annual Meeting of the Human Behavior and Evolution Society, College of William and Mary, Williamsburg, VA, May 30-June 3, 2007.

Stirrat, M. R., Olga Zubko, Jamie F. Lawson, M. J. Law Smith, D. I. Perrett, B. Jones, and L. M. DeBruine. "Health Appearance Influences Trust Judgments." Paper presented at the 18th Annual Meeting of the Human Behavior and Evolution Society, University of Pennsylvania, June 7-11th, 2006.

Tiddeman, B. P., M.R. Stirrat, and D. I. Perrett. "Towards Realism in Facial Image Prototyping: Results of a Wavelet MRF Method." Paper presented at the Theory and Practice of Computer Graphics, University of Kent , Canterbury , United Kingdom , 15th to 17th June 2005.

RE Cornwell, B. C. Jones, L.G. Boothroyd, D.R. Feinberg, M.J. Law Smith, F.R. Moore, L.M. DeBruine, M.R. Stirrat, R.M. Pitman, S. Whiten, and D. I. Perrett. "Hormones and Preferences for Pheromones and Facial Characteristics." Hormones and Behaviour 46, no. 1 (2004): 129.

RE Cornwell, LG Boothroyd, LM DeBruine, DR Feinberg, BC Jones, FR Moore, MJ Law Smith, MR Stirrat, RM Pitman, S Whiten, DI Perrett. "Developmental influences on mate choice in young adults." Human Behavior and Evolution Society in Berlin, Germany. July 2004.

DR Feinberg, BC Jones, LM DeBruine, AC Little, RE Cornwell, LG Boothroyd, MR Stirrat, DI Perrett. "Women’s pitch of voice and facial-metric masculinity correlate: implications for reproductive strategy." Human Behavior and Evolution Society in Berlin, Germany. July 2004.

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Posters

M.R. Stirrat and D.I. Perrett. "‘Robust' male facial width predicts exploitation of trust" Fourth Meeting of the Evolution and Human Behaviour Association, University of St Andrews. April 6-8, 2009. (pdf)

M.R. Stirrat and D.I. Perrett. "Dominance and dinner dates: Who pays the bill?" 20th Annual Meeting of the Human Behavior and Evolution Society, Kyoto, Japan, June 4-8, 2008.

M.R. Stirrat and D.I. Perrett. "Sex, Trust and Participant Role." School of Psychology, University of St Andrews. December 13, 2007.

M.R. Stirrat and D.I. Perrett. "Health appearance influences trust judgments." School of Psychology, University of St Andrews. December 15, 2006.

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Public Engagement

March 20 2009: Public Lecture – "The Faces We Trust: How the way we look influences relationships." St Andrews Extension Programmes, Open Association 2008-9.

March 18 2009: Brain day interactive and practical workshop with local Fife school pupils – "Trust in the Brain"

March 25 to April 5, 2008: Edinburgh International Science Festival – Wonderama, Assembly Rooms, Edinburgh : Face Morph

March 8, 2008: Science Discovery Day – St Andrews Science Festival, University of St Andrews , Physics Building , St Andrews

2007-2008: NHS Tayside – Ageing & smoking software, installed on computers in 15 schools in Tayside area

October 2004 to February 2005: Wellcome Trust: Future Face – Exhibition at the Science Museum , London

July 5-8, 2004: The Royal Society's Summer Science Exhibition, Exhibit 10: Should we judge a book by its cover?

Museum Exhibits 2004 to present: Face Morpher

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Grants

EPSRC Post-Doctoral Research Fellowship .

Brain Travel Grant. Total value: £800. Won funding to give an invited talk at the 20th Annual Meeting of the Human Behavior and Evolution Society, Kyoto , Japan , 4-8th June, 2008 and to discuss collaborations at the departments of Psychology at Kyoto University .

Grindley Travel Grant Total value: £500. Won funding from the Experimental Psychology Society to attend the 19th Human Behavior & Evolution Society meeting, at William & Mary College, Williamsburg, Virginia, USA, 30th May to 3rd Jun 2007

EPSRC Doctoral Training Grant Total value: approx. £56,000 (full fees and maintenance). My PhD was funded by this grant. Funding runs Oct 2006 – Sep 2009.

Unilever Grant (2006-2009) Total value: £15,000: For research assistance under grants held by Prof. David Perrett (PI), University of St Andrews.

Department of Psychology Travel Grant Total value: £1000. Secured funding to attend HBES conferences in 2006, 2007 and 2008.

HBES Travel Grant Total value £150. Won funding to attend HBES 2008 conference.

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Education

2006-2009 – University of St Andrews, St Andrews

2001-2002 – University of Sussex, Brighton

1997 – 2001 – University of Edinburgh, Edinburgh

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