Multiple object categorization and effect of spatial frequencies
- Published
- Accepted
- Subject Areas
- Biophysics, Neuroscience, Cognitive Disorders, Psychiatry and Psychology
- Keywords
- visual perception, categorization, multiple objects, spatial frequencies, simultaneous vs successive
- Copyright
- © 2018 Soliunas et al.
- Licence
- This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, reproduction and adaptation in any medium and for any purpose provided that it is properly attributed. For attribution, the original author(s), title, publication source (PeerJ Preprints) and either DOI or URL of the article must be cited.
- Cite this article
- 2018. Multiple object categorization and effect of spatial frequencies. PeerJ Preprints 6:e26666v1 https://doi.org/10.7287/peerj.preprints.26666v1
Abstract
A process of interaction between objects and scene is widely investigated but much less attention is paid to the interaction between objects in multiple objects stimuli. In psychophysical experiment, we presented one, two, or three visual objects simultaneously for 100 ms and then asked subjects to answer whether objects belong to the same category (Experiments 1 and 2), or whether afterwards presented probe-word signify an object that was presented (Experiments 3 and 4). Interestingly, performance accuracy and reaction time did not depend on the number of objects if they belonged to the same category, but performance deteriorated when more categories were presented. Filtering out high or low spatial frequencies did not affect performance peculiarities of the objects of the same or different categories. The findings support assumption that visual objects of the same category could be identified simultaneously but the different categories are identified successively.
Author Comment
This is a submission to PeerJ for review.
Supplemental Information
Raw data
Response time and accuracy data of four experiments.
Source code data
Stimscope program source code for Experiment 1 and E-Prime source code for Experiment 3.