Dr. Ian Stevenson
Impression cases are those which involve no visual images, but only an impression (strong emotion, physical symptoms, etc.) that something is happening to another person who is a considerable distance away. In most cases the “target” person is in some serious situation–seriously ill, injured in an accident, or close to death.
This book is out of print, but you can find it through various booksellers.
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University Press of Virginia, 1970