A behavioral task sets an upper bound on the time required to access object memories before object segregation
AffiliationUniv Arizona, Dept Psychol
Univ Arizona, Cognit Sci Program
MetadataShow full item record
PublisherASSOC RESEARCH VISION OPHTHALMOLOGY INC
CitationA behavioral task sets an upper bound on the time required to access object memories before object segregation 2016, 16 (15):26 Journal of Vision
JournalJournal of Vision
RightsThis work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.
Collection InformationThis item from the UA Faculty Publications collection is made available by the University of Arizona with support from the University of Arizona Libraries. If you have questions, please contact us at email@example.com.
AbstractTraditional theories of vision assume that object segregation occurs before access to object memories. Yet, behavioral evidence shows that familiar configuration is a prior for segregation, and electrophysiological experiments demonstrate these memories are accessed rapidly. A behavioral index of the speed of access is lacking, however. Here we asked how quickly behavior is influenced by object memories that are accessed in the course of object segregation. We investigated whether access to object memories on the groundside of a border can slow behavior during a rapid categorization task. Participants viewed two silhouettes that depicted a real-world and a novel object. Their task was to saccade toward the real-world object as quickly as possible. Half of the nontarget novel objects were ambiguous in that a portion of a real-world object was suggested, but not consciously perceived, on the groundside of their borders. The rest of the nontargets were unambiguous. We tested whether saccadic reaction times were perturbed by the real-world objects suggested on the groundside of ambiguous novel silhouettes. In Experiments 1 and 2, saccadic reaction times were slowed when nontargets were ambiguous rather than unambiguous. Experiment 2 set an upper limit of 190 ms on the time required for object memories in grounds to influence behavior. Experiment 3 ruled out factors that could have produced longer latencies other than access to object memories. These results provide the first behavioral index of how quickly memories of objects suggested in grounds can influence behavior, placing the upper limit at 190 ms.
VersionFinal published version
SponsorsNational Science Foundation [BCS-0960529]; Office of Naval Research [N0014-14-1-0671]
- Semantic category priming from the groundside of objects shown in nontarget locations and at unpredictable times.
- Authors: Flowers CS, Peterson MA
- Issue date: 2018 Dec 3
- The ground side of an object: perceived as shapeless yet processed for semantics.
- Authors: Sanguinetti JL, Allen JJ, Peterson MA
- Issue date: 2014 Jan
- Neural evidence for competition-mediated suppression in the perception of a single object.
- Authors: Cacciamani L, Scalf PE, Peterson MA
- Issue date: 2015 Nov
- Semantic access occurs outside of awareness for the ground side of a figure.
- Authors: Cacciamani L, Mojica AJ, Sanguinetti JL, Peterson MA
- Issue date: 2014 Nov
- Between-object and within-object saccade programming in a visual search task.
- Authors: Vergilino-Perez D, Findlay JM
- Issue date: 2006 Jul