Oakyoon Cha

611 Wilson Hall
111 21st Avenue South
Vanderbilt University
Nashville, TN 37240
Phone: +1 (615) 674-6212
Email: oakyoon@gmail.com

Education

  • 2018 -
    Postdoctoral researcher, Vanderbilt University, Nashville, TN, USA.
    Advisors: Randolph Blake & Isabel Gauthier
  • 2014 - 2017
    Ph.D. in Cognitive Science, Yonsei University, Seoul, Korea.
    Advisor: Sang Chul Chong
  • 2009 - 2011
    M.S. in Cognitive Science, Yonsei University, Seoul, Korea.
    Advisor: Sang Chul Chong
  • 2000 - 2009
    B.A. in Psychology & Cognitive Science, Yonsei University, Seoul, Korea.

Awards

  • 2017
    Distinguished Thesis, Yonsei University.
  • 2017
    Student Travel Award, Annual Meeting of the Korean Society for Brain and Neural Science.
  • 2016
    Grand Prize, SK Creative Challenge, HCI Korea 2016. photograph
  • 2016
    Student Travel Award, Annual Meeting of the Korean Society for Cognitive and Biological Psychology.
  • 2015
    Multiple Awards, Cannes Lions, AdFest, …. photograph | video clip
    Awarded to Cheil Worldwide for “Look At Me” campaign, carried out with VCC Lab. and Behavioral Psychology Lab., Yonsei University.
  • 2015
    Student Travel Award, Annual Meeting of the Korean Society for Cognitive and Biological Psychology.
  • 2011
    Merited Thesis, Yonsei University.
  • 2008
    S Design Award, College of Human Ecology, Yonsei University.

Work Experience

  • 2011 - 2013
    Director, Strategic Planning, Flowgamez.
    Made marketing decisions through anaysis of game usage data.
  • 2005 - 2006
    Researcher/Developer, Communications Lab., SK Communications.
    Developed prototypes of a new social network service. Parts of the project's code base was published as a Java server framework (https://sf.net/projects/jbaobab).
  • 2003 - 2005
    Developer, E-commerce Platform, Danal.
    Developed and maintained network server programs (C, C++ on *nix, Java/JBoss).

Publications

  • Cha, O., & Blake, R. (2019). Evidence for neural rhythms embedded within binocular rivalry. Proceedings of the National Academy of Sciences of the United States of America, 116(30), 14811-14812. doi:10.1073/pnas.1905174116
  • Cha, O., Blake, R., & Chong, S. C. (2018). Composite binocular perception from dichoptic stimulus arrays with similar ensemble information. Scientific Reports, 8:8263, 1-13. doi:10.1038/s41598-018-26679-9
  • Cha, O., & Chong, S. C. (2018). Perceived average orientation reflects effective gist of the surface. Psychological Science, 29(3), 319-327. doi:10.1177/0956797617735533
  • Eo, K., Cha, O., Chong, S. C., & Kang, M. S. (2016). Less is more: semantic information survives interocular suppression when attention is diverted. Journal of Neuroscience, 36(20), 5489-5497. doi:10.1523/JNEUROSCI.3018-15.2016
  • Cha, O., & Chong, S. C. (2014). The background is remapped across saccades. Experimental Brain Research, 232(2), 609-618. doi:10.1007/s00221-013-3769-9
  • Baek, Y., Cha, O., & Chong, S. C. (2012). Characteristics of the filled-in surface at the blind spot. Vision Research, 58, 33-44. doi:10.1016/j.visres.2012.01.020
  • Park, K. M., Cha, O., Kim, S., Im, H. Y., & Chong, S. C. (2007). The influence of depth context on blind spot filling-in. Korean Journal of Cognitive Science, 18(4), 351-370. pdf in Korean

Invited Talks

  • Oct., 2018
    “Ensemble as lossy compression rather than dumb averaging.”
    Department of Psychology, Vanderbilt University.
  • Nov., 2017
    “Ensemble information reflects effective gist of a visual scene.”
    Center for Cognitive Science, Yonsei University.
  • Mar., 2016
    “The background is remapped across saccades.” slides
    Center for Neuroscience Imaging Research, Institute for Basic Science.

Softwares (published at https://github.com/oakyoon)

  • Collection of functions that could be combined to generate and manipulate visual stimuli.
  • vcc-gamma for MATLAB/Psychtoolbox
    Monitor gamma correction library for use in VCC Lab., Yonsei University. slides
  • vcc-stereo, vu-stereo for MATLAB/Psychtoolbox
    Mirror stereoscope helper library. The two-mirror stereoscope version (vcc-stereo) was written for use in VCC Lab., Yonsei University, and the four-mirror stereoscope version (vu-stereo) is its variant for use in Blake Lab., Vanderbilt University.

Conference Presentations

  • Cha, O., Blake, R., & Gauthier, I. (2019, May). Stimulus-specific learning facilitates ensemble processing of cars. Poster presented at the annual meeting of the Vision Sciences Society, St. Pete Beach, FL. preregistration
  • Blake, R., Cha, O., Son, G., & Chong, S. C. (2019, May). Novel procedure for generating continuous flash suppression: Seurat meets Mondrian. Poster presented at the annual meeting of the Vision Sciences Society, St. Pete Beach, FL.
  • Cha, O., & Chong, S. C. (2018, May). Ensemble information is built with a bag of free-floating visual features. Poster presented at the annual meeting of the Vision Sciences Society, St. Pete Beach, FL. doi:10.1167/18.10.317
  • Cha, O., & Chong, S. C. (2017, August). Ensemble similarity between binocular images promotes binocular matching. Poster presented at the annual meeting of the Korean Society for Brain and Neural Science co-organized by the Korean Society for Neurodegenerative Disease, Seoul, Korea.
  • Cha, O., Blake, R., & Chong, S. C. (2017, May). Dissimilarity between feature ensembles triggers binocular rivalry without competing local features. Poster presented at the annual meeting of the Vision Sciences Society, St. Pete Beach, FL. doi:10.1167/17.10.1221 poster
  • Cha, O., & Chong, S. C. (2017, January). Effect of the skewness and peak of orientation distributions on the perceived average orientaion. Poster presented at the annual meeting of the Korean Society for Cognitive and Biological Psychology, Busan, Korea. poster in Korean
  • Cha, O., & Chong, S. C. (2016, May). Objects held in visual working memory compete for access to resources. Poster presented at the annual meeting of the Vision Sciences Society, St. Pete Beach, FL. doi:10.1167/16.12.1053
  • Cha, O., & Chong, S. C. (2016, January). Objects held in visual working memory compete for access to resources. Talk presetned at the annual meeting of the Korean Society for Cognitive and Biological Psychology, Jeju, Korea.
  • Eo, K., Cha, O., Kang, M.-S., & Chong, S. C. (2015, May). Attending away makes semantic information available during rivalry. Talk presented at the annual meeting of the Vision Sciences Society, St. Pete Beach, FL. doi:10.1167/15.12.382
  • Kang, K., Cha, O., & Chong, S. C. (2015, May). Relational information decays faster than object features in visual working memory. Poster presented at the annual meeting of the Vision Sciences Society, St. Pete Beach, FL. doi:10.1167/15.12.535
  • Cha, O., & Chong, S. C. (2015, January). Contour integration affects perceived mean orientations of Gabors. Talk presented at the annual meeting of the Korean Society for Cognitive and Biological Psychology, Jeju, Korea. slides in Korean
  • Eo, K., Cha, O., Kang, K., & Chong, S. C. (2015, January). Influence of pupil size on brightness perception. Poster presented at the annual meeting of the Korean Society for Cognitive and Biological Psychology, Jeju, Korea.
  • Kang, K., Cha, O., & Chong, S. C. (2015, January). Relational information decays faster than object features in visual working memory. Poster presented at the annual meeting of the Korean Society for Cognitive and Biological Psychology, Jeju, Korea.
  • Kang, M.-S., Eo, K., Cha, O., & Chong, S. C. (2014, November). Inattention opens door for unconscious processing during continuous flash suppression. Talk presented at the annual meeting of the Society for Neuroscience, Washington, DC.
  • Cha, O., & Chong, S. C. (2014, May). Contour integration affects perceived mean orientations of Gabors. Poster presented at the annual meeting of the Vision Sciences Society, St. Pete Beach, FL. doi:10.1167/14.10.1429 poster
  • Eo, K., Cha, O., Jung, Y., & Chong, S. C. (2014, May). The relationship between vividness of visual imagery and indirect size-measurements of the visual cortex. Poster presented at the annual meeting of the Vision Sciences Society, St. Pete Beach, FL. doi:10.1167/14.10.43
  • Cha, O., & Chong, S. C. (2011, June). Analyzing electrophysiological signals using genetic algorithm. Talk presented at the annual meeting of the Korea Society for Cognitive Science, Seoul, Korea. slides in Korean
  • Baek, Y., Cha, O., & Chong, S. C. (2011, June). Binocular rivalry and the perception at the blind spot. Talk presented at the annual meeting of the Korean Society for Cognitive Science, Seoul, Korea.
  • Baek, Y., Cha, O., & Chong, S. C. (2011, May). Temporal dynamics of binocular rivalry at the blind spot. Poster presented at the annual meeting of the Vision Sciences Society, Naples, FL. doi:10.1167/11.11.304
  • Cha, O., & Chong, S. C. (2010, May). Background is remapped across saccades. Poster presented at the annual meeting of the Vision Sciences Society, Naples, FL. doi:10.1167/10.7.516 poster
  • Baek, Y., Kim, J., Cha, O., & Chong, S. C. (2009, May). The quality of filled-in surface at the blind spot. Poster presented at the annual meeting of the Vision Sciences Society, Naples, FL. doi:10.1167/9.8.1028

Other Works

  • 2011
    ShortEnuf, TWiST Seoul 2011.
    Internet service that maps URLs to 5-letter domains (e.g., qto.in) for a limited period of time. This service made to the final at TWiST Seoul 2011. blog post on this event
  • 2003
    Robot Stingray, Creative Design Fair 2003, Yonsei University.
    Remote-controlled robot stingray (photographs and a video clip available at https://oakyoon.github.io/cv/). photograph 1, 2, 3 | video clip