June 2006
Volume 6, Issue 6
Free
Vision Sciences Society Annual Meeting Abstract  |   June 2006
Direct comparison of preferences for dramatically different stimulus types reveals higher observer agreement for images with semantic content
Author Affiliations
  • Edward A. Vessel
    Center for Neural Science, New York University
  • Nava Rubin
    Center for Neural Science, New York University
Journal of Vision June 2006, Vol.6, 470. doi:10.1167/6.6.470
  • Views
  • Share
  • Tools
    • Alerts
      ×
      This feature is available to Subscribers Only
      Sign In or Create an Account ×
    • Get Citation

      Edward A. Vessel, Nava Rubin; Direct comparison of preferences for dramatically different stimulus types reveals higher observer agreement for images with semantic content. Journal of Vision 2006;6(6):470. doi: 10.1167/6.6.470.

      Download citation file:


      © ARVO (1962-2015); The Authors (2016-present)

      ×
  • Supplements
Abstract

Previous studies of preference for real-world scenes found a high degree of agreement for ratings across observers (Vessel & Biederman, 2002 J. of Vision 2(7) 492a). Vessel & Rubin (2005, ECVP) tested the degree to which this agreement is attributable to familiarity with the themes and/or semantic content of scenes by measuring observer agreement for preferences of a set of abstract, novel color images. Observers performed forced-choice, “one-back” paired comparisons between images and preference values were estimated for the full stimulus set from these paired comparisons (a sorting algorithm guided presentation order to optimize the estimation procedure). We found very low agreement across observers, but robust within observer reproducibility. Using the identical task with half abstract and half real-world images (grouped into six categories each) we tested whether this difference remains when the two stimulus types are directly compared within a session. We found higher agreement across subjects for real-world scenes (r = 0.24) than for abstract images (r = 0.12). Subjects slightly favored the scenes over the abstract images, and produced a slightly larger range (nonsignificant) of preferences for real-world scenes. Preferences for the image categories were uncorrelated across subjects for abstract categories (r = -0.1), but well correlated for real-world categories (r = 0.43). Intermixed paired comparisons allow for direct comparison of preferences for dramatically different stimulus types. We replicated our previous finding of higher agreement for real-world scenes than abstract images, and found that this difference cannot be attributed to differences in stimulus range or within-subject variability.

Vessel, E. A. Rubin, N. (2006). Direct comparison of preferences for dramatically different stimulus types reveals higher observer agreement for images with semantic content [Abstract]. Journal of Vision, 6(6):470, 470a, http://journalofvision.org/6/6/470/, doi:10.1167/6.6.470. [CrossRef]
Footnotes
 Supported by NEI T32 EY07158-03
×
×

This PDF is available to Subscribers Only

Sign in or purchase a subscription to access this content. ×

You must be signed into an individual account to use this feature.

×