The Role of Shape in Semantic Memory Organization of Objects: An Experimental Study Using PI-Release

L. van Weelden, J. Schilperoord, M.G.J. Swerts, D. Pecher

Research output: Contribution to journalArticleScientificpeer-review

Abstract

Visual information contributes fundamentally to the process of object categorization. The present study investigated whether the degree of activation of visual information in this process is dependent on the contextual relevance of this information. We used the Proactive Interference (PI-release) paradigm. In four experiments, we manipulated the information by which objects could be categorized and subsequently be retrieved from memory. The pattern of PI-release showed that if objects could be stored and retrieved both by (non-perceptual) semantic and (perceptual) shape information, then shape information was overruled by semantic information. If, however, semantic information could not be (satisfactorily) used to store and retrieve objects, then objects were stored in memory in terms of their shape. The latter effect was found to be strongest for objects from identical semantic categories.
Original languageEnglish
Pages (from-to)1-17
Number of pages17
JournalExperimental Psychology
Early online date25 Apr 2014
DOIs
Publication statusPublished - 2015

Keywords

  • Object shape
  • Proactive interference
  • Memory
  • Categorization

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