LieCatcher: Game Framework for Collecting Human Judgments of Deceptive Speech

Humans are notoriously poor at detecting deception --- most are worse than chance. To address this issue we have developed LieCatcher, a single-player web-based Game With A Purpose (GWAP) that allows players to assess their lie detection skills while providing human judgments of deceptive speech. Players listen to audio recordings drawn from a corpus of deceptive and non-deceptive interview dialogues, and guess if the speaker is lying or telling the truth. They are awarded points for correct guesses and at the end of the game they receive a score summarizing their performance at lie detection. We present the game design and implementation, and describe a crowdsourcing experiment conducted to study perceived deception.