Object files can be purely episodic.

Published

Journal Article

Our ability to track an object as the same persisting entity over time and motion may primarily rely on spatiotemporal representations which encode some, but not all, of an object's features. Previous researchers using the 'object reviewing' paradigm have demonstrated that such representations can store featural information of well-learned stimuli such as letters and words at a highly abstract level. However, it is unknown whether these representations can also store purely episodic information (i.e. information obtained from a single, novel encounter) that does not correspond to pre-existing type-representations in long-term memory. Here, in an object-reviewing experiment with novel face images as stimuli, observers still produced reliable object-specific preview benefits in dynamic displays: a preview of a novel face on a specific object speeded the recognition of that particular face at a later point when it appeared again on the same object compared to when it reappeared on a different object (beyond display-wide priming), even when all objects moved to new positions in the intervening delay. This case study demonstrates that the mid-level visual representations which keep track of persisting identity over time--e.g. 'object files', in one popular framework can store not only abstract types from long-term memory, but also specific tokens from online visual experience.

Full Text

Cited Authors

  • Mitroff, SR; Scholl, BJ; Noles, NS

Published Date

  • January 1, 2007

Published In

Volume / Issue

  • 36 / 12

Start / End Page

  • 1730 - 1735

PubMed ID

  • 18283924

Pubmed Central ID

  • 18283924

Electronic International Standard Serial Number (EISSN)

  • 1468-4233

International Standard Serial Number (ISSN)

  • 0301-0066

Digital Object Identifier (DOI)

  • 10.1068/p5804

Language

  • eng