Albert von Schrenck-Notzing

Albert Freiherr von Schrenck-Notzing (18 May 1862 – 12 February 1929) was a German physician, psychiatrist and notable psychical researcher, who devoted his time to the study of paranormal events connected with mediumship, hypnotism and telepathy. He investigated Spiritualist mediums such as Willi Schneider, Rudi Schneider, and Valentine Dencausse. He is credited as the first forensic psychologist by Guinness World Records.

Schrenck-Notzing investigated the medium Eva Carrière and believed the ectoplasm she produced was genuine. However, Schrenck-Notzing did not believe her ectoplasm "materializations" were anything to do with spirits, he claimed they were the result of "ideoplasty" in which the medium could form images onto ectoplasm from her mind. Schrenck-Notzing published the book Phenomena of Materialisation in English translation (1920), which included photographs of the ectoplasm. Critics pointed out that the photographs of the ectoplasm revealed marks of magazine cut-outs, pins and a piece of string.

The psychiatrist Mathilde Ludendorff wrote that the experiments of Schrenck-Notzing were unscientific and that he had been duped by tricks of Carrière. In the Schrenck-Notzing experiments with Carrière the scientific controls were scarce and there was evidence that she had freed her hands in the séance room.Harry Price wrote the photographs of her ectoplasm taken with Schrenck-Notzing look artificial and two-dimensional made from cardboard and newspaper portraits and that there were no scientific controls as both her hands were free. In 1920 Carrière was investigated by the Society for Psychical Research in London. An analysis of her ectoplasm revealed it to be made of chewed paper. She was also investigated in 1922 and the result of the tests were negative.

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