The influence of object-color knowledge on emerging object representations in the brain

Lina Teichmann, Genevieve L. Quek, Amanda K. Robinson, Tijl Grootswagers, Thomas A. Carlson, Anina N. Rich*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

4 Citations (Scopus)
1 Downloads (Pure)

Abstract

The ability to rapidly and accurately recognize complex objects is a crucial function of the human visual system. To recognize an object, we need to bind incoming visual features, such as color and form, together into cohesive neural representations and integrate these with our preexisting knowledge about the world. For some objects, typical color is a central feature for recognition; for example, a banana is typically yellow. Here, we applied multivariate pattern analysis on time-resolved neuroimaging (MEG) data to examine how object-color knowledge affects emerging object representations over time. Our results from 20 participants (11 female) show that the typicality of object-color combinations influences object representations, although not at the initial stages of object and color processing. We find evidence that color decoding peaks later for atypical object-color combinations compared with typical object-color combinations, illustrating the interplay between processing incoming object features and stored object knowledge. Together, these results provide new insights into the integration of incoming visual information with existing conceptual object knowledge.

Original languageEnglish
Pages (from-to)6779-6789
Number of pages11
JournalJournal of Neuroscience
Volume40
Issue number35
DOIs
Publication statusPublished - 26 Aug 2020

Bibliographical note

Copyright the Author(s) 2020. Originally published as Teichmann, L., Quek, G. L., Robinson, A. K., Grootswagers, T., Carlson, T. A., & Rich, A. N. (2020). The Influence of Object-Color Knowledge on Emerging Object Representations in the Brain. Journal of Neuroscience, 40(35), 6779-6789.
https://doi.org/10.1523/JNEUROSCI.0158-20.2020.
Version archived for private and non-commercial use with the permission of the author/s and according to publisher conditions. For further rights please contact the publisher.

Keywords

  • color
  • decoding
  • MEG
  • MVPA
  • object-color knowledge

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