Hi!

My name is Zekun (hear my name). I'm a postdoctoral researcher at Yale University, working in ACT Lab. I earned my PhD in Cognitive Psychology at Johns Hopkins University, where I was part of Percaption and Mind Lab.

The world frequently strikes us as being simple or complex. But why do our minds bother to represent complexity in the first place? My research seeks to understand how the mind computes the complexity of information and how the mental representation of complexity shapes our interactions with the world.

Here is my CV.

Recently, I've been exploring...

Coming in VSS 2025

Abstract representation of skills

People can perform complex movements in multiple ways to achieve the same goal. How can we do so?

VSS 2024

Internal and external factors in action segmentation

What do you see in this animation? What does it tell us about how we perceive a golf swing?

Preprint

Mental construction of relations

The world contains not only objects and features, but also relations holding between them. How do such relations form in the mind?

Previously, I studied...

Sun & Firestone (2022), JEP: General

Lossy compression of a complex world

What is the relationship between complexity in the world and complexity in the mind? The mind engages in a kind of lossy compression for overly complex stimuli.

Sun & Firestone (2024), Psychological Science

The mental "evolution" of complexity

Memory rarely replicates exactly what we see; instead, it reconstructs past experiences with distortions and errors. Does memory enhance the complexity of what we see?

Papers

  • Sun, Z., & McDougle, S. D. (under review). Dissociating low-level visual features from high-level event structure in action segmentation. psyArxiv preprint [pdf]

  • Sun, Z., Firestone, C., & Hafri, A. (under review). The psychophysics of compositionality: Relational scene perception occurs in a canonical order. psyArxiv preprint [pdf]

  • Sun, Z., & McDougle, S. D. (under review). Motor planning is obligatorily biased by task-irrelevant objects.

  • Sun, Z., Han, S., & Firestone, C. (2024). Caricaturing shapes in visual memory. Psychological Science. [pdf]

  • Sun, Z., & Firestone, C. (2022). Beautiful on the inside: Aesthetic preferences and the skeletal complexity of shapes. Perception. [pdf]

  • Sun, Z., & Firestone, C. (2022). Speaking and seeing: How verbal "description length" encodes visual complexity. Journal of Experimental Psychology: General, 151, 82–96. [pdf]

  • Sun, Z., & Firestone, C. (2021). Curious objects: How visual complexity guides attention and engagement. Cognitive Science, 45(4), e12933. [pdf]

  • Sun, Z., & Firestone, C. (2020). Optimism and pessimism in the predictive brain. Trends in Cognitive Sciences, 24, 683-685. [pdf]

  • Sun, Z., & Firestone, C. (2020). The dark room problem. Trends in Cognitive Sciences, 24, 346-348. [pdf]
    Responses:
    - Klein (2020)
    - Seth et al. (2020)
    - Van de Cruys, Friston, & Clark (2020)

  • Fan, L., Sun, Y. B., Sun, Z.K., Wang, N., Luo, F., Yu, F., & Wang, J. Y. (2018). Modulation of auditory sensory memory by chronic clinical pain and acute experimental pain: a mismatch negativity study. Scientific Reports, 8(1), 1-13. [pdf]

  • Sun, Z.K., Wang, J.-Y. and Luo, F. Experimental Pain Induces Attentional Bias That Is Modified by Enhanced Motivation: An Eye Tracking Study. European Journal of Pain, 2016, 20(8): 1266-1277. [pdf]
  • Contact me

  • Email: zekun.sun@yale.edu
  • Office: 1256, 100 College Street, New Haven, CT 06510