Othello the handkerchief as proof, Emilia realizes what her husband Iago has done, and she exposes him, whereupon he kills her. Othello, belatedly realising Desdemona's innocence, stabs Iago but not fatally, saying that Iago is a devil, and he would rather have him live the rest of his life in pain. Iago refuses to explain his motives, vowing to remain silent from that moment on. Lodovico apprehends both Iago and Othello for the murders of Roderigo, Emilia, and Desdemona, but Othello commits suicide. Lodovico appoints Cassio as Othello's successor and exhorts him to punish Iago justly. He then denounces Iago for
Othello error Othello error Othello error occurs when a suspicious observer discounts cues of truthfulness. Essentially the Othello error occurs, Paul Ekman states, "when the lie catcher fails to consider that a truthful person who is under stress may appear to be lying" their non-verbal signals expressing their worry at the possibility of being disbelieved. A lie-detector or polygraph may be deceived in the same way, by misinterpreting nervous signals from a truthful person. The error is named after William Shakespeare's tragic play "Othello"; the dynamics between the two main characters, Othello and Desdemona, are a particularly well-known example of the error