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Dr James Yearsley

Senior Lectureship in Psychology

School of Arts and Social Sciences Department of Psychology

Contact details

Address

Dr James Yearsley D429, Rhind Building
City, University of London
Northampton Square
London EC1V 0HB
United Kingdom

About

Overview

I work in the field of mathematical psychology, specifically trying to build and test computational models of non-normative decision making. These can be anything from simple perceptual decisions about shapes or moving dots, to much more complex choices, such as how to split a windfall between yourself and a charity. In many such decisions people don't always behave rationally.

I am particularly interested in models of human decision making based on the mathematics of quantum theory. These models try to explain different types of decision making errors as arising from a more general issue with the way events are represented in the brain. More generally my work tries to uncover the mechanisms that underlie decision making errors and biases, with the aim of predicting when people are likely to make errors, in order to help them make better choices.

One of the themes in my research is building and testing models of behavior, rather than just performing statistical tests on data. This can help us achieve a better understanding of the processes underlying human reasoning, but it brings its own set of challenges. I am therefore also interested in issues such as model fitting and model comparison using Bayesian methods. Some of my recent work has involved fitting models of serial recall using approximate Bayesian computation methods, which had previously never been quantitatively fit to data before.

Recently, I have collaborated on projects applying cognitive modelling techniques to answer questions in clinical and social psychology, where the use of formal models is still relatively uncommon.

I currently teach one half of the first year quantitative methods course, PS1007. I also teach on the first year cognitive approaches to mind and behaviour module, PS1003. In addition I provide additional maths support to new undergraduate students to help them tackle the research methods modules in the first year.

Qualifications

  1. PhD, Imperial College London, United Kingdom, Oct 2007 – Sep 2011
  2. MSci, Imperial College London, United Kingdom, Oct 2003 – Jul 2007

Employment

  1. Senior Lecturer, City, University of London, Aug 2020 – present
  2. Lecturer, Department of Psychology, City, University of London, Oct 2017 – Sep 2020
  3. Postdoctoral Research Associate, Vanderbilt University, Nov 2015 – Sep 2017
  4. Postdoctoral Research Associate, City, University of London, Oct 2013 – Oct 2015
  5. Postdoctoral Research Associate, University of Cambridge, Oct 2011 – Sep 2013

Publications

Publications by category

Chapter

  1. Barque Duran, A., Pothos, E.M., Yearsley, J.M., Hampton, J.A., Busemeyer, J.R. and Trueblood, J.S. (2016). Similarity Judgments: From Classical to Complex Vector Psychological Spaces. Contextuality from Quantum Physics to Psychology (pp. 415–448). WORLD SCIENTIFIC. ISBN 978-981-4730-60-0.

Conference papers and proceedings (4)

  1. Yearsley, J.M., Pothos, E.M., Hampton, J.A. and Barque Duran, A. (2015). Towards a Quantum Probability Theory of Similarity Judgments.
  2. Diósi, L., Elze, H.-.T., Fronzoni, L., Halliwell, J., Prati, E., Vitiello, G. … Yearsley, J. (2013). DICE 2012 : Spacetime Matter Quantum Mechanics – from the Planck scale to emergent phenomena.
  3. Yearsley, J.M. (2011). A review of the decoherent histories approach to the arrival time problem in quantum theory.
  4. Yearsley, J.M. (2009). The propagator for the step potential using the path decomposition expansion.

Journal articles (32)

  1. Wojciechowski, B.W., Izydorczyk, B., Blasiak, P., Yearsley, J.M., White, L.C. and Pothos, E.M. (2021). Constructive Biases in Clinical Judgment. Topics in Cognitive Science. doi:10.1111/tops.12547.
  2. Saint-Aubin, J., Yearsley, J.M., Poirier, M., Cyr, V. and Guitard, D. (2021). A model of the production effect over the short-term: The cost of relative distinctiveness. Journal of Memory and Language, 118, pp. 104219–104219. doi:10.1016/j.jml.2021.104219.
  3. Yearsley, J.M., Gaigg, S.B., Bowler, D.M., Ring, M. and Haenschel, C. (2021). What Can Performance in the
    IEDS
    Task Tell Us About Attention Shifting in Clinical Groups?     Autism Research, 14(6), pp. 1237–1251. doi:10.1002/aur.2484.
  4. Blasiak, P., Pothos, E.M., Yearsley, J.M., Gallus, C. and Borsuk, E. (2021). Violations of locality and free choice are equivalent resources in Bell experiments. Proceedings of the National Academy of Sciences, 118(17). doi:10.1073/pnas.2020569118.
  5. Pothos, E.M., Waddup, O.J., Kouassi, P. and Yearsley, J.M. (2021). What Is Rational and Irrational in Human Decision Making. Quantum Reports, 3(1), pp. 242–252. doi:10.3390/quantum3010014.
  6. Poirier, M., Yearsley, J.M., Saint-Aubin, J., Fortin, C., Gallant, G. and Guitard, D. (2019). Dissociating visuo-spatial and verbal working memory: It’s all in the features. Memory & Cognition, 47(4), pp. 603–618. doi:10.3758/s13421-018-0882-9.
  7. Pothos, E.M., Basieva, I., Khrennikov, A. and Yearsley, J.M. (2019). Perspectives on Correctness in Probabilistic Inference from Psychology. The Spanish Journal of Psychology, 22. doi:10.1017/sjp.2019.48.
  8. Yearsley, J.M., Barque-Duran, A., Scerrati, E., Hampton, J.A. and Pothos, E.M. (2017). The triangle inequality constraint in similarity judgments. Progress in Biophysics and Molecular Biology, 130, pp. 26–32. doi:10.1016/j.pbiomolbio.2017.03.005.
  9. Barque-Duran, A., Pothos, E.M., Hampton, J.A. and Yearsley, J.M. (2017). Contemporary morality: Moral judgments in digital contexts. Computers in Human Behavior, 75, pp. 184–193. doi:10.1016/j.chb.2017.05.020.
  10. Yearsley, J.M. and Trueblood, J.S. (2017). A quantum theory account of order effects and conjunction fallacies in political judgments. Psychonomic Bulletin and Review, 25(4), pp. 1517–1525. doi:10.3758/s13423-017-1371-z.
  11. Trueblood, J.S., Yearsley, J.M. and Pothos, E.M. (2017). A quantum probability framework for human probabilistic inference. Journal of Experimental Psychology: General, 146(9), pp. 1307–1341. doi:10.1037/xge0000326.
  12. Pothos, E.M., Busemeyer, J.R., Shiffrin, R.M. and Yearsley, J.M. (2017). The rational status of quantum cognition. Journal of Experimental Psychology: General, 146(7), pp. 968–987. doi:10.1037/xge0000312.
  13. Yearsley, J.M. (2017). Advanced tools and concepts for quantum cognition: A tutorial. Journal of Mathematical Psychology, 78, pp. 24–39. doi:10.1016/j.jmp.2016.07.005.
  14. Yearsley, J.M. and Busemeyer, J.R. (2016). Quantum cognition and decision theories: A tutorial. Journal of Mathematical Psychology, 74, pp. 99–116. doi:10.1016/j.jmp.2015.11.005.
  15. Yearsley, J.M. and Pothos, E.M. (2016). Zeno's paradox in decision-making. Proceedings of the Royal Society B: Biological Sciences, 283(1828), pp. 20160291–20160291. doi:10.1098/rspb.2016.0291.
  16. Barque-Duran, A., Pothos, E.M., Yearsley, J.M. and Hampton, J.A. (2016). Patterns and evolution of moral behaviour: moral dynamics in everyday life. Thinking & Reasoning, 22(1), pp. 31–56. doi:10.1080/13546783.2015.1051585.
  17. Pothos, E.M., Barque-Duran, A., Yearsley, J.M., Trueblood, J.S., Busemeyer, J.R. and Hampton, J.A. (2015). Progress and current challenges with the quantum similarity model. Frontiers in Psychology, 6. doi:10.3389/fpsyg.2015.00205.
  18. Yearsley, J.M. and Pothos, E.M. (2015). Towards an Empirical Test of Realism in Cognition. pp. 271–282. doi:10.1007/978-3-319-15931-7_21.
  19. Yearsley, J.M. and Pothos, E.M. (2014). Challenging the classical notion of time in cognition: a quantum perspective. Proceedings of the Royal Society B: Biological Sciences, 281(1781), pp. 20133056–20133056. doi:10.1098/rspb.2013.3056.
  20. Halliwell, J.J. and Yearsley, J.M. (2013). Amplitudes for spacetime regions and the quantum Zeno effect: pitfalls of standard path integral constructions. Journal of Physics: Conference Series, 442, pp. 12018–12018. doi:10.1088/1742-6596/442/1/012018.
  21. Yearsley, J.M. and Halliwell, J.J. (2013). An introduction to the quantum backflow effect. Journal of Physics: Conference Series, 442, pp. 12055–12055. doi:10.1088/1742-6596/442/1/012055.
  22. Halliwell, J.J. and Yearsley, J.M. (2013). Negative probabilities, Fine's theorem, and linear positivity. Physical Review A, 87(2). doi:10.1103/physreva.87.022114.
  23. Yearsley, J.M., Halliwell, J.J., Hartshorn, R. and Whitby, A. (2012). Analytical examples, measurement models, and classical limit of quantum backflow. Physical Review A, 86(4). doi:10.1103/physreva.86.042116.
  24. Halliwell, J.J. and Yearsley, J.M. (2012). Pitfalls of path integrals: Amplitudes for spacetime regions and the quantum Zeno effect. Physical Review D, 86(2). doi:10.1103/physrevd.86.024016.
  25. Yearsley, J.M., Downs, D.A., Halliwell, J.J. and Hashagen, A.K. (2011). Quantum arrival and dwell times via idealized clocks. Physical Review A, 84(2). doi:10.1103/physreva.84.022109.
  26. Diósi, L., Elze, H.-.T., Fronzoni, L., Halliwell, J., Prati, E., Vitiello, G. … Yearsley, J. (2011). 5th International Workshop DICE2010: Space-Time-Matter – Current Issues in Quantum Mechanics and Beyond. Journal of Physics: Conference Series, 306, pp. 11001–11001. doi:10.1088/1742-6596/306/1/011001.
  27. Halliwell, J.J. and Yearsley, J.M. (2010). On the relationship between complex potentials and strings of projection operators. Journal of Physics A: Mathematical and Theoretical, 43(44), pp. 445303–445303. doi:10.1088/1751-8113/43/44/445303.
  28. Yearsley, J.M. (2010). Quantum arrival time for open systems. Physical Review A, 82(1). doi:10.1103/physreva.82.012116.
  29. Halliwell, J.J. and Yearsley, J.M. (2009). Quantum arrival time formula from decoherent histories. Physics Letters A, 374(2), pp. 154–157. doi:10.1016/j.physleta.2009.10.077.
  30. Halliwell, J.J. and Yearsley, J.M. (2009). Arrival times, complex potentials, and decoherent histories. Physical Review A, 79(6). doi:10.1103/physreva.79.062101.
  31. Yearsley, J.M. (2008). The propagator for the step potential and delta function potential using the path decomposition expansion. Journal of Physics A: Mathematical and Theoretical, 41(28), pp. 285301–285301. doi:10.1088/1751-8113/41/28/285301.
  32. Yearsley, J., Pothos, E., Barque-Duran, A., Trueblood, J. and Hampton, J. Context effects in similarity judgments. Journal of Experimental Psychology: General.