PMC

Deceit detection accuracy by condition. Note, bars are standard error of the mean

Venezuelan protesters sign: “Why do I protest? Insecurity, scarcity, injustices, repression, deceit, for my future.”

Sample trials, as they were displayed to subjects. A reminder of player assignments always appeared at the top of the screen. Upper row: Trials from Study 1. On the left is a standard gamble, and on the right is a shared gamble. Lower row: Trials from Study 2. On the left is a standard gamble; matched gambles appeared the same, except with the loss amount halved. In the center is a local shared gamble; remote shared gambles appeared the same, except reading “Shared Loss with Player B.” On the right is a deceit gamble.

Note: The horizontal line corresponds to the mean of the different groups (SCZ = schizophrenia, HC = healthy controls) for the different communicative acts (Sincere: SCZ = 2.81 (sd = 0.81), HC = 3.33 (0.56), Cohen’s d: 0.75 [0.16, 1.34]; Deceit: SCZ = 2.15 (0.88), Cohen’s d: 1.24 [0.62, 1.86]; HC = 3.01 (0.63); Irony: SCZ = 2.32 (0.87), HC = 3.09 (0.48), Cohen’s d: 1.10 [0.48, 1.70]), and the rectangle represents the Bayesian highest density interval. **p < 0.01 *, p < 0.05.