Understanding Lie Detection

What is a common misconception about lie detection?

• It is based on scientific evidence.

• It can be easily learned from TV shows.

• It is foolproof and reliable.

• It is only used in criminal investigations.

Why are polygraph machines considered unreliable?

• They are too expensive.

• They rely on emotional signals which are not unique to lying.

• They require extensive training to operate.

• They can only be used in controlled environments.

What is a major limitation of microexpression training?

• It is only effective in controlled environments.

• It can make people worse at detecting lies.

• It is too expensive to implement.

• It requires advanced technology.

Why might a confident liar not show signs of anxiety?

• They are naturally calm under pressure.

• They have practiced lying extensively.

• They do not fear being caught.

• They are unaware of the consequences.

What is the main idea behind cognitive load theory in lie detection?

• Lying can be detected through changes in voice pitch.

• Lying requires more mental effort than telling the truth.

• Lying increases emotional stress.

• Lying is associated with specific facial expressions.

How does cognitive load theory challenge suspected liars?

• By monitoring their heart rate.

• By analyzing their facial expressions.

• By asking them to perform tasks while recounting their story.

• By increasing their emotional stress.

What is an embedded lie?

• A lie that is completely fabricated.

• A lie that is mixed with truth.

• A lie that is told with a straight face.

• A lie that is repeated multiple times.

What is a challenge in using brain scanning for lie detection?

• It has not identified unique patterns for lying.

• It is too expensive for widespread use.

• It is only effective in laboratory settings.

• It requires invasive procedures.

What is 'lie bias'?

• The ability to detect lies accurately.

• The tendency to believe everyone is lying.

• The tendency to think a lie is being told when trying to detect lies.

• The belief that lie detection is always accurate.

What is a potential drawback of lie detection training?

• It is only applicable in legal settings.

• It requires constant practice.

• It is too time-consuming.

• It can lead to overconfidence in detecting lies.