Hypnoscope

Hypnoscope is an instrument intended to determine a person's susceptibility to hypnotic influences. thumb|Hypnoscope

== History == thumb|Gessman's Hypnoscope Plenty of hypnotists, like Franz Mesmer and others, proclaimed that the human body was susceptible to magnetic fields. At the end of the 19th century some psychologists tried to measure human's susceptibility to hypnosis with magnets. Patient had to put the finger inside the magnetic field, and if he had felt any influence he was considered a hypnable person.