Senior Research Scientist

Unmind Ltd.

About Me

I’m a cognitive scientist turned data scientist, currently working on better ways to measure mental health and wellbeing at Unmind. I have a PhD in cognitive psychology and did postdoctoral research in cognitive neuroscience (and a bit of philosophy. I’m interested in using data to understand people.


  • Science: Decision-Making; Mental Health
  • Coding: R, Python, and JavaScript
  • Data: Experimentation, Measurement; Bayes, Computational Modelling, and Statistical Learning


  • Senior Research Scientist | 2021 - Now |
    Measuring Mental Health and Wellbeing

    Unmind Ltd.

  • Postdoc | 2020 - 2021 |
    Computational Psychiatry

    Institute of Cognitive Neuroscience, UCL

  • Postdoc | 2017 - 2020 |
    Self-Initiated Action

    Institute of Cognitive Neuroscience, UCL

  • Postdoc | 2015 - 2017 |
    Consciousness & Metacognition

    Institute of Philosophy, University of London

  • PhD Psychology | 2012 - 2015 |
    Conflict in Reasoning

    Queen's University Belfast

  • BSc Psychology | 2009 - 2012 |

    Queen's University Belfast

Recent Posts

A Reliability Coefficient for Maximum-Likelihood Parameter Estimates

If you have standard errors, you can get reliability

Stability is not Reliability

Why Generative Modelling does not solve the Psychometric Reliability Paradox

Experiments I will never get to run (part 1)

Goodbye, academic projects!

Robust Ranking with Multilevel Models and Partial Pooling

Distrust single 5-star reviews…with maths!

The Dangers of using Clinical Measures Online

Bias, Inattention, and Population-Appropriate Priors

Online Experiments

Studies I’ve run online (but only the fun ones)

Social Tasting

A big one. Tablet-based interactive social wine-tasting experiment. Tate Modern, 2017.


An enhanced questionnaire looking at memory for virtual environments

Waiting Games

A series of fun experiments on the timing of self-initiated actions. With animations.


Using cursor-tracking to study the dynamics of conflict during decision-making

The Rest

Some other experiments that don’t get a post of their own


Some of the topics I’ve been working on

Voluntary Action, Evidence Accumulation, and Decision-Making

How does the brain initiate actions without external cues?

Conscious Awareness and Learning from Experience

What’s the point of being conscious?

Dynamics of Conflict in Reasoning

Movements of the hand reveal conflict in the mind


(2020). How social contexts affect cognition: mentalizing interferes with sense of agency during voluntary action. Journal of Experimental Social Psychology.


(2020). Racial bias in face perception is sensitive to instructions but not introspection. Consciousness and Cognition.


(2020). The Readiness Potential reflects expectation, not uncertainty, in the timing of action. bioRxiv.

PDF Preprint

(2019). Do readiness potentials happen all the time?. NeuroImage.