In potentially deceptive situations, people rely on mental shortcuts to help process information. These heuristic judgments are often biased and result in inaccurate assessments of sender veracity. Four such biases--truth bias, visual bias, demeanor bias, and expectancy violation bias--were examined in a judgment experiment that varied nonverbal…

Examines the persuasive message behaviors of truthful and deceptive communicators. Finds significant differences in the types of persuasive messages generated: truthful persuaders compose messages involving positive and negative sanctions; deceptive persuaders compose messages based on rationale or explanation. (KEH)