CBR Briefing #64
- March 29, 2018
- CBR - Behavioral Science
How slow-motion video can sway jurors' decisions

- In courtrooms, juries are sometimes shown crime-scene videos to help assess the case. But video may not be a reliable indicator of a suspect’s intentions, according to Chicago Booth’s Eugene M. Caruso and his co-researchers. When footage is shown in slow motion, people are more likely to infer that a suspect’s actions were intentional.
- Participants imagined themselves as jurors and watched a video of a robbery that ended in a shooting. Some saw the footage at regular speed, but those who watched the slow-motion version were more likely to feel the perpetrator had more time, had acted willfully and deliberately, and had the intention to kill.
- Even when participants were told how much time had elapsed, they still sensed more intent when the video was shown in slow motion.
Eugene M. Caruso, Zachary C. Burns, and Benjamin A. Converse, “Slow Motion Increases Perceived Intent,” Proceedings of the National Academy of Sciences, August 2016.
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