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Chapter 5 - Anatomical preparations, and portraits of the subjects who underwent electrophysiological experiments

Published online by Cambridge University Press:  10 November 2010

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Summary

Plates 1, 2a, 2b, 3, 4, 5, 6

Plate 3: The face of an old man who served in numerous electrophysiological experiments, photographed in repose.

Plate 4: The face in repose of a young man who appears in later photographs showing facial expressions produces both naturally and electrophysiologically.

Plate 5: Photograph of a young girl frowning, on whom several electrophysiological experiments were performed.

Plate 6: To show that when an electrode is applied to a nerve trunk that supplies several muscles only a grimace is produced. In this electrization of the temporofacial trunk we see contraction of all the muscles supplied by it; the grimace produced is similar to a tic of the face.

Further notes on these plates

The individual I chose as my principal subject for the experiments shown in this album was an old toothless man, with a thin face, whose features, without being absolutely ugly, approached ordinary triviality and whose facial expression was in perfect agreement with his inoffensive character and his restricted intelligence.

The reasons that determined my choice were:

  1. In the elderly, facial muscle contractions produce all the expressive lines of the face (both fundamental and secondary lines).

  2. The thinness of my subject favored the development of these expressive lines, and at the same time facilitated localized electrization of the muscles of his face.

  3. […]

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Publisher: Cambridge University Press
Print publication year: 1990

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