The police used __________ to show how often suspects lied during questioning.

During the test, the subject's __________ and __________ are closely monitored.

A __________, also known as a lie detector, records multiple physical signals at once.

It's important to only ask __________ questions that relate to the case.

The assumption that everyone tells the truth during an interview is just an __________.

• I measure the force of your blood inside your body. • If I’m too high or too low, it can be dangerous. • I’m often checked using an arm cuff.

• I am a machine. • People use me to find out if someone is lying. • I record changes in body signals like sweating and heartbeat.

Doctors often measure both __________ and blood pressure to check someone’s health.

The __________ asks a series of questions to the __________.

The police only asked __________ questions about the crime, not about the suspect’s personal life.

Before starting the test, the examiner recorded the subject’s __________ to compare later results.

The polygraph focuses on __________ responses to detect lies.

During the job interview, the __________ looked nervous and avoided eye contact.