Why do people lie? From harmless white lies to much bigger deceptions, lying is part of human behaviour but what makes us do it, and are we actually any good at spotting when someone isn't telling the truth?
In the first episode of Why Do We Do That, Open University psychology experts Professor Lara Frumkin and Professor Zoe Walkington explore the psychology of lying, why we sometimes bend the truth and what research tells us about lie detection.
Can you really tell if someone is lying from their body language? Does avoiding eye contact, fidgeting or looking in a certain direction give someone away? And are polygraph tests really reliable? The research might surprise you: when it comes to detecting lies, most of us perform at around chance level.
The episode also explores why we tend to assume other people are telling the truth, what psychologists call duping delight”, how small white lies can grow into something much bigger, and what happens to trust when someone has been seriously deceived.
Whether you've wondered why people lie, how to tell if someone is lying, or whether there's really such a thing as a human lie detector, discover what psychology can tell us about deception, trust and human behaviour.
Chapters:
0:00 Can we really detect a lie?
0:31 Why do people lie?
1:46 Why we tell white lies
2:39 Are some lies more acceptable than others?
5:11 When white lies become bigger lies
6:19 Can you tell when someone is lying?
8:29 Can we get better at detecting lies?
10:50 Body language and lie detection myths
12:01 Can you rebuild trust after a lie?
13:05 Why we assume people are telling the truth
14:10 Are some people more likely to lie?
16:08 Do lie detector tests actually work?
18:43 How often do people lie?
21:04 What actually counts as a lie?
22:17 Does lying make someone a bad person?
24:22 Once a liar, always a liar?
25:36 Why do we lie to ourselves?
27:36 Do people feel guilty about lying?
30:07 How do investigators catch someone lying?
33:17 Why does being lied to hurt so much?
34:04 What psychology tells us about lying
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