University of Stirling The Sunday Times - Scottish University of the Year - 2009/2010

Department of Psychology

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Picture of Peter Hancock  
Peter Hancock
address

University of Stirling

Stirling

FK9 4LA
Scotland

UK

telephone Tel: + 44 (0) 1786 467675
fax Fax: + 44 (0) 1786 467641
email Email:
web

Web: www.psychology.stir.ac.uk

/staff/phancock/

Job Title
Professor, Deputy Head of Department
Section
Psychology
About
I have a first degree in Chemistry, an MSc in Intelligent systems and a PhD in Computing Science, and have been a lecturer in Psychology since 1995.  As Deputy HoD I help with the departmental budget, and chair the resources committee.
Research

I'm principally interested in the perception of faces and what kind of representations we might use: how do we tell whether two different faces are the same or different people? Together with Charlie Frowd I'm developing EvoFIT (www.evofit.co.uk), a novel holistic facial composite system.  I'm looking at other ways to improve facial composites: the sketch of me above is by Gil Gibli, with whom I'm collaborating.

With Debbie Riby I'm investgating how children with Autism and with Williams Syndrome look at faces, using eye-tracking, funded by ESRC.

With Josef Kittler at Surrey, I'm looking at how to improve human face matching abilities, funded by a DTI grant to Omniperception.

 

My PhD thesis looked at issues of representation in neural nets and genetic algorithms, in particular the problem of coding a neural net on a genetic string. http://hdl.handle.net/1893/39

Teaching
I teach cognition and memory, and assorted electives on face perception, neural computational modelling, evolutionary approaches to psychology and public communication of psychology. I contribute to the MSc in psychological research methods.
Other

Stirling has a beautiful campus.  I have a webcam of the view from my office.

I've made available some animations of the principal components of shape variation.

I'm responsible for the PICS image archive.  If you'd like to contribute your images, please let me know.

I'm on the editorial board of Network: computation in neural systems. Please contact me if you think you might have something suitable for publication therein.

Publications

Face perception

Hancock, P.J.B., Burton, A.M. and Bruce, V., Preprocessing images of faces: correlations with human perceptions of distinctiveness and familiarity In proceedings of IEE Fifth International Conference on Image Processing and its Applications, Edinburgh, July 1995. (160K pdf)

Hancock, P.J.B., Burton, A.M. and Bruce, V. Face processing: human perception and principal components analysis. Memory and Cognition 24(1) 26-40, 1996. http://hdl.handle.net/1893/349

Bruce, V., Burton, A.M. and Hancock, P.J.B. Missing dimensions of distinctiveness, in Cognitive and computational aspects of face recognition: explorations in face space. Tim Valentine (Ed), Routledge, 1995.

Hancock, P.J.B., Bruce, V. and Burton, A.M. Testing principal component representations for faces. In Proceedings of 4th Neural Computation and Psychology Workshop, 1997, J.A. Bullinaria, D.W.Glasspool and G. Houghton (Eds), London: Springer-Verlag, p84-97. 173K pdf

Hancock, P.J.B., Bruce, V. and Burton, A.M. A comparison of two computer-based face recognition systems with human perceptions of faces. Vision Research. 38, 2277-2288, 1998 http://hdl.handle.net/1893/285

Burton, A.M., Bruce, V. and Hancock, P.J.B. From pixels to people: a model of familiar face recognition. Cognitive Science 23(1): 1-31, 1999. Winner of British Psychological Society Cognitive Psychology Section Award, 2000 http://hdl.handle.net/1893/304

Bruce, V., Henderson, Z., Greenwood, K., Hancock, P. J. B., Burton, A. M., & Miller, P. I.  Verification of face identities from images captured on video. Journal of Experimental Psychology: Applied  5-4, 339-360, 1999.

Hancock P.J.B. and Frowd, C.D. Evolutionary generation of faces.  In proceedings of AISB99. (250Kb pdf file)

Hancock, P.J.B. Evolving faces from principal components.  Behavior Research Methods, Instruments and Computers, 32-2, 327-333, 2000 http://hdl.handle.net/1893/348

Hancock P.J.B., Bruce, V. and Burton, A.M. Recognition of unfamiliar faces.  Trends in Cognitive Sciences 4-9, 330-337, 2000. http://hdl.handle.net/1893/130

Hancock, P.J.B. and Frowd, C.D. Evolutionary generation of faces. In P.J. Bentley and D.W.Corne (Eds) Creative Evolutionary Systems. London: Academic Press, 2001

Burton, A.M., Miller, P., Bruce, V., Hancock, P.J.B. and Henderson, Z. Human and automatic face recognition: a comparison across image formats. Vision Research 41, 3185-3195, 2001

Bruce, V., Ness, H., Hancock, P.J.B., Newman, C. and Rarity, J. Combining face composites yields improvements in face likeness. Journal of Applied Psychology 87-5, 894-902, 2002 http://hdl.handle.net/1893/131

Little, A.C. and Hancock, P.J.B. The role of masculinity and distinctiveness in judgements of human male facial attractiveness. British Journal of Psychology 93, 451-464, 2002

Hancock, P.J.B. and DeBruine, L.M. What's a face worth: Noneconomic factors in game playing. Behavioral and Brain Sciences 26-2, 162-3, 2003. http://hdl.handle.net/1893/176

Frowd, C.D., Hancock, P.J.B., & Carson, D. EvoFIT: A Holistic, Evolutionary Facial Identification Technique for Creating Composites. Association for Computing Machinery Transactions on Applied Psychology , 1 (1), 1-21, 2004

Frowd, C.D., Carson, D., Ness, H., Richardson, J., Morrison, L., McLanaghan, S., & Hancock, P.J.B. A forensically valid comparison of facial composite systems. Psychology, Crime & Law, 11 (1), 33-52, 2005.

Frowd, C.D., Carson, D., Ness, H., McQuiston, D., Richardson, J., Baldwin, H., & Hancock, P.J.B. Contemporary Composite Techniques: the impact of a forensically-relevant target delay. Legal & Criminological Psychology, 10(1), 63-81, 2005

Hardie, S., Hancock, P., Rodway, P., Penton-Voak, I., Carson, D. & Wright, L. The enigma of facial asymmetry: Is there a gender specific pattern of facedness? Laterality: Asymmetries of Body, Brain, and Cognition, 10, 295-304, 2005. http://hdl.handle.net/1893/716

Burton, AM., Jenkins, R., Hancock, P.J.B., White, D. Robust representations for face recognition: the power of averages. Cognitive Psychology 51-3, 256-284, 2005. http://hdl.handle.net/1893/325

Frowd, C.D., Bruce, V., McIntyre, A. & Hancock, P.J.B. The relative importance of external and internal features of facial composites. British Journal of Psychology 98 (1), 61 - 77, 2007 http://hdl.handle.net/1893/326

Frowd, C. D., Bruce, V., Ness, H., Bowie, L., Paterson, J., Thomson-Bogner, C., Mcintyre, A., & Hancock, P.J.B. Parallel approaches to composite production: interfaces that behave contrary to expectation. Ergonomics, 50, 562-585, 2007 http://hdl.handle.net/1893/719
Frowd, C.D., Bruce, V., McIntyre, A., Ross, D., Fields, S., Plenderleith, Y., & Hancock, P.J.B. Implementing Holistic Dimensions for a Facial Composite System. Journal of Multimedia, 1, 42-51, 2006.
Hirose, Y. and Hancock P.J.B. Equally attending but still not seeing: An eye-tracking study of change detection in own and other race faces. Visual Cognition, 15-6, 647-660, 2007 http://hdl.handle.net/1893/320
Frowd, C.D., Bruce, V., Ross, D. McIntyre, A. & Hancock, P.J.B. An application of caricature: how to improve the recognition of facial composites. Visual Cognition 15-8, 927-953, 2007 http://hdl.handle.net/1893/295
Frowd, C.D., McQuiston-Surrett, D., Anandaciva, S., Ireland, C.E., & Hancock, P.J.B. An evaluation of US systems for facial composite production. Ergonomics, 50, 562-585, 2007 http://hdl.handle.net/1893/311

Frowd, C.D., Bruce, V. & Hancock, P.J.B. Helping the police to construct the face of a criminal. The Psychologist. 21-8, 670-2, 2008 http://hdl.handle.net/1893/720

Frowd, C.D., Bruce, V., Smith, A., & Hancock, P.J.B. Improving the quality of facial composites using a holistic cognitive interview. Journal of Experimental Psychology: Applied. 14-3, 276-287, 2008 http://hdl.handle.net/1893/663

Frowd, C.D., Bruce, V., Chang, Y., Plenderleith, Y., McIntyre, A.H., & Hancock, P.J.B. (2008). Predict Your Child: a system to suggest the facial appearance of children. Journal of Multimedia, 3(1), 28-35. http://hdl.handle.net/1893/664

Lander, K., Bruce, V, Smith E., and Hancock, P.J.B. (2009) Multiple repetition priming of faces: Massed and spaced presentations, Visual Cognition 17, 598-616 http://hdl.handle.net/1893/1158

Ross, D.A., Hancock, P.J.B. and Lewis, M.B. (2010) Changing Faces: Direction is Important, Visual Cognition 18-1, 67-81 http://hdl.handle.net/1893/1126

Frowd, C.D., Bruce, V., Gannon, C., Robinson, M., Tredoux, C., Park., J., McIntyre, A., & Hancock, P.J.B. (2010). Evolving the memory of a criminal’s face: methods to search a face space more effectively. Soft Computing 14-1, 81-90. DOI: 10.1007/s00500-009-0518-x http://hdl.handle.net/1893/1940

Frowd, C.D., Pitchford, M., Bruce, V., Jackson, S., Hepton, G., Greenall, M., McIntyre, A.H., Hancock, P.J.B (in press). The psychology of face construction: giving evolution a helping hand.  Applied Cognitive Psychology.

Williams Syndrome and Autism

Riby, D.M. and Hancock, P.J.B.  Viewing it differently: Social scene perception in Williams syndrome and Autism. Neuropsychologia. 46, 2855–2860, 2008  http://hdl.handle.net/1893/468

Riby, D. M., & Hancock, P. J. B. (2009). Do faces capture the attention of individuals with Williams syndrome or Autism? Evidence from tracking eye movements. Journal of Autism and Developmental Disorders, 39, 421-431. http://www.springerlink.com/content/u7837544652631l1/ and http://hdl.handle.net/1893/658

Riby, D.M. and Hancock, P.J.B. (2009). Looking at Movies and Cartoons: Eye-tracking evidence from Williams syndrome and Autism.  Journal of Intellectual Disability Research, 53-2, 169-181.  http://hdl.handle.net/1893/659

Visual Psychophysics

Hancock, P.J.B. and Phillips, W.A. Pop-out from abrupt visual onsets. Vision Research 44-19, 2285-2299, 2004.  http://hdl.handle.net/1893/137

Hancock, P. J. B., Walton, L., Mitchell, G., Plenderleith, Y., & Phillips, W. A. (2008). Segregation by onset asynchrony. Journal of Vision, 8(7):21, 1-21, http://journalofvision.org/8/7/21/, doi:10.1167/8.7.21.

Neural Nets

Hancock, P.J.B., Data representation in neural nets: an empirical study, Proceedings of the 1988 Connectionist models summer school, 11-20, Touretzky, D. and Hinton, G. and Sejnowski, T. (Eds), Morgan Kaufmann, 1989

Hancock, P.J.B. and Smith, L.S., Data representation and net structure for object perception, Proceedings of Neuro-Nimes, 395-405, Herault, J. (Ed), EC2, Nimes, 1989

Hancock, P.J.B. and Smith, L.S., Formal equivalence of Stent and Grossberg synaptic modification rules, Network: computation in neural systems, 1, 133-134, 1990

Hancock, P.J.B. and Smith, L.S. and Phillips, W.A., A biologically supported error-correcting rule, Neural Computation, 3, 201-212, 1991

Hancock, P.J.B. and Smith, L.S. and Phillips, W.A., A biologically supported error-correcting learning rule, Artificial Neural Networks, 1, 531-536, Kohonen, T. and Makisara, K. and Simula, O. and Kangas, J. (Eds), North-Holland, Amsterdam, 1991

Genetic algorithms

Hancock, P.J.B., An empirical comparison of selection methods in evolutionary algorithms, Evolutionary Computing: AISB Workshop, Leeds, U.K., April 1994, Selected Papers, Lecture Notes in Computer Science 865, 80-94, Fogarty, T.C. (Ed), 1994 (200 Kbytes)

Hancock, P.J.B. Selection methods for evolutionary algorithms. In Practical handbook of genetic algorithms: new frontiers, Volume II. Lance Chambers (Ed), CRC Press, 1995.

Hancock, P.J.B.  A comparison of selection mechanisms, in T.Bäck, D.Fogel and Z.Michalewicz (Eds), Handbook of Evolutionary Computation, New York, Oxford University Press, 1997.

Genetic algorithms and neural nets

Hancock, P.J.B., GANNET: Design of a neural net for face recognition by Genetic Algorithm, Proceedings of IEEE Workshop on Genetic Algorithms, Neural Networks and Simulated Annealing applied to problems in signal and image processing, Glasgow, 1990

Hancock, P.J.B. and Smith, L.S, GANNET: Genetic design of a neural net for face recognition, Parallel problem solving from nature, Schwefel, H-P. and Maenner, R. (eds), Lecture notes in Computer Science 496, Springer Verlag, 292-296, 1991

Hancock, P.J.B., Coding strategies for genetic algorithms and neural nets, PhD Thesis, Department of Computing Science and Mathematics, University of Stirling, 1992

Hancock, P.J.B., Recombination operators for the design of neural nets by genetic algorithm, Parallel Problem Solving from Nature 2, 441-450, Maenner, R. and Manderick, B. (Eds), Elsevier, North Holland, 1992

Hancock, P.J.B., Pruning neural nets by genetic algorithm, Proceedings of the International Conference on Artificial Neural Networks, Brighton, 991-994, Aleksander, I. and Taylor, J.G. (Eds), Elsevier, 1992

Hancock, P.J.B., Genetic algorithms and permutation problems: a comparison of recombination operators for neural net structure specification, Proceedings of COGANN workshop, IJCNN, Baltimore, Whitley, D. (Ed), IEEE Press, 1992

Image statistics

Baddeley, R.J. and Hancock, P.J.B., A statistical analysis of natural images matches psychophysically derived orientation tuning curves, Proceedings of the Royal Society B, 246, 219-223, 1991

Hancock, P.J.B. and Baddeley, R.J. and Smith, L.S., Principal components of natural images, Network: computation in neural systems, 3, 61-70, 1992.

 

Miscellaneous

Hockaday, S, Beddow, T.A., Stone, M.,  Hancock, P. and Ross. L.G. Using truss networks to estimate the biomass of Oreochromis niloticus, and to investigate shape characteristics. Journal of Fish Biology 57:(4) 981-1000, 2000.

Tovée, M.J., Hancock, P.J.B., Mahmoodi, M., Singleton, B.R.R. and Cornelissen, P.L. Human female attractiveness: waveform analysis of body shape. Proceedings of the Royal Society of London (B) 269, 2205-2213, 2002.  http://hdl.handle.net/1893/129

Hancock, P.J.B. Monozygotic twins’ colour-number association, a case study. Cortex, 42, 147-150, 2006.  http://hdl.handle.net/1893/136

Smith, K.L., Tovée, M.J., Hancock, P.J.B., Bateson, M., Cox, M.A.A, & Cornelissen, P.L. An analysis of body shape attractiveness based on image statistics; evidence for a dissociation between expressions of preference and shape discrimination. Visual Cognition 15-8, 927-953, 2007

Cornelissen, P.L., Hancock, P.J.B., Kiviniemi, V.W., George, H. R., & Tovée, M. J.  (2009) Patterns of eye-movements when Male and Female observers judge female attractiveness, body fat and waist-to-hip ratio.  Evolution and Human Behavior 30-6, 417-428. http://hdl.handle.net/1893/1124