Participants had to react to visual clues by pessing a button or reaching to touch a screen. Participants felt time slowed down whenever they had to move to touch the screen. 

Certain states, such as physical exertion or trauma can make time seem to speed up or slow down 

See the full study here :

Hagura, N., Kanai, R., Orgs, G., & Haggard, P. (2012). Ready steady slow: action preparation slows the subjective passage of time. Proceedings of the Royal Society B: Biological Sciences279(1746), 4399-4406.

Want to know more about biases?

Einstellung Effect

Restraint Bias

Present Bias

Google Effect