Touching on face space

Comparing visual and haptic processing of face shapes

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

The idea that faces are represented within a structured face space (Valentine Quarterly Journal of Experimental Psychology 43: 161-204, 1991) has gained considerable experimental support, from both physiological and perceptual studies. Recent work has also shown that faces can even be recognized haptically-that is, from touch alone. Although some evidence favors congruent processing strategies in the visual and haptic processing of faces, the question of how similar the two modalities are in terms of face processing remains open. Here, this question was addressed by asking whether there is evidence for a haptic face space, and if so, how it compares to visual face space. For this, a physical face space was created, consisting of six laser-scanned individual faces, their morphed average, 50 %-morphs between two individual faces, as well as 50 %-morphs of the individual faces with the average, resulting in a set of 19 faces. Participants then rated either the visual or haptic pairwise similarity of the tangible 3-D face shapes. Multidimensional scaling analyses showed that both modalities extracted perceptual spaces that conformed to critical predictions of the face space framework, hence providing support for similar processing of complex face shapes in haptics and vision. Despite the overall similarities, however, systematic differences also emerged between the visual and haptic data. These differences are discussed in the context of face processing and complex-shape processing in vision and haptics.

Original languageEnglish
Pages (from-to)995-1002
Number of pages8
JournalPsychonomic Bulletin and Review
Volume21
Issue number4
DOIs
Publication statusPublished - 2014 Jan 1

Fingerprint

Visual Space
Haptics
Experimental Psychology
Touch
Lasers
Modality
Face Processing
Prediction
Laser
Multidimensional Scaling
Physical

ASJC Scopus subject areas

  • Experimental and Cognitive Psychology
  • Arts and Humanities (miscellaneous)
  • Developmental and Educational Psychology

Cite this

Touching on face space : Comparing visual and haptic processing of face shapes. / Wallraven, Christian.

In: Psychonomic Bulletin and Review, Vol. 21, No. 4, 01.01.2014, p. 995-1002.

Research output: Contribution to journalArticle

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