The Society for Physical Research in Cambridge, England was one of the first institutes to do research involving telepathy. It was here in 1886the word "telepathy" was first used to describe the phenomenon of what was previously referred to as " thought transference". Research in telepathy came to the United States in 1917. John E. Coover of Stanford University began testing participants claiming to have telepathic abilities by using playing cards. The results, he found, were not significant enough to prove their abilities. In 1927, J.B. Rine of Duke University began using Zener cards to test study participants. Today, rather than using Zener cards, many parapsychologists use what as called "free response" allowing the study participants to zero in on anything instead of the predefined cards
One of the most important books concerning telepathy, is Mental Radio by Upton Sinclair. In this he discusses his wife's telepathic abilities in being able to reproduce sketches he was doing simultaneously several miles away.
Telepathy can occur when the subject is awake, but researchers have found that subjects have the ability to see things while they sleep. In experiments to test this theory, a receiver subject is set up in one room and hooked up to both a machine to test EEG patterns and rapid eye movements (REM). A sender in a separate room and is instructed to send a randomly selected image to the subject while he or she is in a dream state. Once the subject is awake, they are asked what they remember about their dreams. Research sometimes suggests that there can be a connection between the sender's thoughts and the subject's dream.
Many believe that telepathy is achiever by connecting on the same mental frequency, much like tuning a radio. You can achieve telepathy through meditation and focus; and the more you practice, the better you become.