Is Human Object Recognition Better Described by Geon Structural Descriptions or by Multiple Views? Comment on Biederman and Gerhardstein (1993)

Michael J. Tarr, Heinrich H. Bülthoff

Research output: Contribution to journalArticle

270 Citations (Scopus)


Is human object recognition viewpoint dependent or viewpoint invariant under "everyday" conditions? I. Biederman and P.C. Gerhardstein (1993) argued that viewpoint-invariant mechanisms are used almost exclusively. However, our analysis indicates that (a) their conditions for immediate viewpoint invariance lack the generality to characterize a wide range of recognition phenomena, (b) the extensive body of viewpoint-dependent results cannot be dismissed as processing "by-products" or "experimental artifacts," and (c) geon structural descriptions cannot coherently account for category recognition, the domain they are intended to explain. The weight of current evidence supports an exemplar-based multiple-views mechanism as an important component of both exemplar-specific and categorical recognition.

Original languageEnglish
Pages (from-to)1494-1505
Number of pages12
JournalJournal of Experimental Psychology: Human Perception and Performance
Issue number6
Publication statusPublished - 1995 Dec


ASJC Scopus subject areas

  • Experimental and Cognitive Psychology
  • Arts and Humanities (miscellaneous)
  • Behavioral Neuroscience

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