The Briefest of Glances: The Time Course of Natural Scene Understanding
Name
Oliva-2009-The Briefest of Glances.pdf
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474.18 KB
Format
Adobe PDF
Checksum (MD5)
6bf3fff75ac44848bafb8463bfa8b88d
Author(s)
Greene, Michelle R.
Oliva, Aude
Date Issued
April 2009
Journal
Association for Psychological Science
Publisher
Psychological Science
Citation
Greene, Michelle R., and Aude Oliva. “The Briefest of Glances: The Time Course of Natural Scene Understanding.” Psychological Science 20.4 (2009): 464–472. Web.
Version
Author's final manuscript
Abstract
What information is available from a brief glance at a novel scene? Although previous efforts to answer this question have focused on scene categorization or object detection, real-world scenes contain a wealth of information whose perceptual availability has yet to be explored. We compared image exposure thresholds in several tasks involving basic-level categorization or global-property classification. All thresholds were remarkably short: Observers achieved 75%-correct performance with presentations ranging from 19 to 67 ms, reaching maximum performance at about 100 ms. Global-property categorization was performed with significantly less presentation time than basic-level categorization, which suggests that there exists a time during early visual processing when a scene may be classified as, for example, a large space or navigable, but not yet as a mountain or lake. Comparing the relative availability of visual information reveals bottlenecks in the accumulation of meaning. Understanding these bottlenecks provides critical insight into the computations underlying rapid visual understanding.
MIT Department
Massachusetts Institute of Technology. Department of Brain and Cognitive Sciences
Terms of Use
Creative Commons Attribution-Noncommercial-Share Alike 3.0
Persistent DSpace Link
DOI of Published Version
https://doi.org/10.1111/j.1467-9280.2009.02316.x
