Spotting liars: watch for added details and broken cadence
Pearlman refuses to give a one-size-fits-all lie-detection rule because people differ, but offers benchmarks. Most people add extra details when they lie, over-justifying, whereas a cut-and-dry 'I'm sorry, I can't make it' tends to be true. The real tell is deviation from a person's baseline cadence, and he predicts AI will soon detect deception from timing and micro-changes the body cannot control.
- Liars tend to pile on unnecessary details to prove themselves
- Short, cut-and-dry answers are more often truthful
- The signal is a change from the person's normal cadence, not a universal cue
- AI could soon beat polygraphs by reading objective timing and micro-signals
“Most people add more details when they lie... When people tend to be cut and dry and say, I'm really sorry, I can't make it,…”
“Is that different than how they normally talk? Check their cadence.”