Upper- and lower-limb amputees show reduced levels of eeriness for images of prosthetic hands

Gavin Buckingham, Johnny Parr, Greg Wood, Sarah Day, Alix Chadwell, John Head, Adam Galpin, Laurence Kenney, Peter Kyberd, Emma Gowen, Ellen Poliakoff

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Abstract

The "uncanny phenomenon" describes the feeling of unease associated with seeing an image that is close to appearing human. Prosthetic hands in particular are well known to induce this effect. Little is known, however, about this phenomenon from the viewpoint of prosthesis users. We studied perceptions of eeriness and human-likeness for images of different types of mechanical, cosmetic, and anatomic hands in upper-limb prosthesis users (n=9), lower-limb prosthesis users (n=10), prosthetists (n=16), control participants with no prosthetic training (n=20), and control participants who were trained to use a myoelectric prosthetic hand simulator (n=23). Both the upper- and lower-limb prosthesis user groups showed a reduced uncanny phenomenon (i.e., significantly lower levels of eeriness) for cosmetic prosthetic hands compared to the other groups, with no concomitant reduction in how these stimuli were rated in terms of human-likeness. However, a similar effect was found neither for prosthetists with prolonged visual experience of prosthetic hands nor for the group with short-term training with the simulator. These findings in the prosthesis users therefore seem likely to be related to limb absence or prolonged experience with prostheses.
Original languageEnglish
Pages (from-to)1295-1302
Number of pages8
JournalPsychonomic Bulletin & Review
Volume26
Issue number4
Early online date10 Jun 2019
DOIs
Publication statusPublished - 15 Aug 2019

Keywords

  • uncanny valley
  • uncanny phenomenon
  • prosthetic use
  • perception
  • embodiment

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    Upper- and lower-limb amputees show reduced levels of eeriness for images of prosthetic hands

    Ellen Poliakoff (Speaker), Sarah Day (Contributor), Gavin Buckingham (Contributor), Jonny Parr (Contributor), Alix Chadwell (Contributor), Lawrence Kenney (Contributor), John Head (Contributor), Greg Wood (Contributor), A Galpin (Contributor), Peter Kyberd (Contributor)
    19 Mar 2019

    Activity: Talk or presentation typesOral presentation

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