Greeble (psychology)

From Wikipedia, the free encyclopedia
Jump to: navigation, search
For detailing added to break up a surface, see Greeble.
The Greebles come in two genders and five families.[1]
samar osmit galli radok tasio
plok Plok samar.tif Plok osmit.tif Plok galli.tif Plok radok.tif Plok tasio.tif
glip Glip samar.tif Glip osmit.tif Glip galli.tif Glip radok.tif Glip tasio.tif

The Greebles refers to a category of novel objects used as stimuli in psychological studies of object and face recognition, created by Scott Yu at Yale University. They were named by the psychologist Robert Abelson.[2] The greebles were created for Isabel Gauthier's dissertation work at Yale,[3] so as to share constraints with faces: they have a small number of parts in a common configuration. This makes it difficult to distinguish any individual object on the basis of the presence of a feature, and this is thought to encourage the use of all features and the relationships between them. In other words, greebles, just like faces, can be processed configurally. Yu's originals (both the symmetrical and asymmetrical sets) can be obtained from Michael Tarr.[4] Greebles appear in textbooks,[5][6] and in more than 25 scientific articles (see below).


  1. ^ Gauthier, Tarr (1997), p.1674
  2. ^ Gauthier, Tarr (1997), p.1673
  3. ^ Gauthier (1998)
  4. ^ Greebles — TarrLab
  5. ^ John R. Anderson (2005). Cognitive Psychology and its Implications. Worth Publishers.  Here: sect.2.1.4 on Face Recognition
  6. ^ E. Bruce Goldstein (2007). Sensation and Perception. Belmont/CA: Wadsworth / Thomson Learning Company.  Here: sect.4.5 on Evolution and Plasiticity