Psychonomic Bulletin & Review

, Volume 4, Issue 4, pp 535–540 | Cite as

Visual and tactile memory for 2-D patterns: Effects of changes in size and left-right orientation

  • Kavitha Srinivas
  • Anthony J. Greene
  • Randolph D. Easton
Brief Reports


Visual identification of 3-D objects depends on representations that are invariant across changes in size and left-right orientation. We examined whether this finding reflects the unique demands of processing 3-D objects, or whether it generalizes to 2-D patterns and to the tactile modality. Our findings suggest that object representation for identification is influenced greatly by the processing demands of stimulus materials (e.g., 2-D vs. 3-D objects) and stimulus modality (touch vs. vision). Identification of 2-D patterns in vision is adversely affected by left-right orientation changes, but not size changes. Identification of the same patterns in touch is adversely affected by both changes. Together, the results suggest that the unique processing demands of stimulus materials and modality shape the representation of objects in memory.


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Copyright information

© Psychonomic Society, Inc. 1997

Authors and Affiliations

  • Kavitha Srinivas
    • 1
  • Anthony J. Greene
    • 1
  • Randolph D. Easton
    • 1
  1. 1.Department of PsychologyBoston CollegeChestnut Hill

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