Heejin Lim, Ph.D.

Heejin Lim, Ph.D.

Heejin Lim: click here
Department of Neurobiology and Anatomy
The University of Texas Health Science Center
Medical School at Houston
Curriculum Vitae [PDF] (Updated: 2/22/2008)
Office: MSB 7.527, 6431 Fannin St. Houston, TX 77030
Phone: 713-500-5552
Fax: 713-500-0621
Email: heejin.lim@uth.tmc.edu

Education

Ph.D. Department of Computer Science, Texas A&M University, August 2006

Dissertation Title: Facilitatory Neural Dynamics for Predictive Extrapolation, Advisor: Yoonsuck Choe.
M.S. in Computer Science, Keimyung University, Daegu, Korea, February 1993.

Thesis Title: An Extension of Event Calculus for Temporal Knowledge Representation, Advisor: Jinsang Kim.
B.S. Summa Cum Laude, in Computer Science, Keimyung University, Daegu, Korea, February 1991.

Work Experience

Research Fellow (postdoc) at UT medical school, Daniel Felleman's Lab, January 2007 - Present.
Teaching Assistant, Spring 2004 - Summer 2006.
Research Assistant, Multidisciplinary Research Program of the DARPA (MURI), User Modeling for Complex Skill Training Environments, September 2000 - January 2004.
Researcher & Software Developer, Electronics and Telecommunications Research Institute, March 1993 - July 2000.

Research

Dissertation Committee:
1. Yoonsuck Choe (Chair): Department of Computer Science, Neural Intelligence Lab, Brain Networks Lab
2. Nancy Amato : Department of Computer Science, Parasol Lab
3. Dezhen Song: Department of Computer Science, NetBot Lab
4. Won-jong Kim: Department of Mechanical Engineering
5. Takashi Yamauchi: Department of Psychology
Postdoc Research Interests:
1. Visual processing in primate cortex
2. Functional organization of V2/V4
3. Color/Luminance and orientation contour map
4. Optical imaging of intrinsic signal and electrophysiology in macaque monkeys
Ph.D Research Interests:
1. Synaptic plasticity and its learning rules
2. Temporal information processing in the nervous system
3. Biologically plausible artificial neural networks
4. Computational neuroscience
5. Machine learning

Publications

Journal papers:
1. H. Lim and Y. Choe. Compensating for Neural Transmission Delays Using Extrapolatory Neural Activation in Evolutionary Neural Networks. Neural Information Processing - Letters and Reviews, 10: 147-161, 2006. [pdf]
2. H. Lim and Y. Choe. Extrapolative Delay Compensation Through Facilitating Synapses and Its Relation to the Flash-lag Effect. IEEE Transactions on Neural Networks, 2008, In press.
3. H. Lim, Y. Wang, Y. Xiao, D. A. Gutnisky and D. J. Felleman. V2 interstripes contain feature independent orientation maps yet differ in their tuning bandwidths for luminance- and chromaticdefined contours. In preparation.
Conference papers:
1. D. J. Felleman and H. Lim. The Role of Color in Surface and Contour Processing in Visual Cortical Area V2. 25th Annual Houston Conference on Biomedical Engineering Research (HSEMB 2008), Houston, TX, Feb. 7-8, 2008.
2. H. Lim and Y. Choe. Delay Compensation Through Facilitating Synapses and STDP: A Neural Basis for Orientation Flash-Lag Effect. International Joint Conference on Neural Networks (IJCNN 2006), 8385-8392, July 16-21, Vancouver, BC, Canada, 2006. [pdf]
3. H. Lim and Y. Choe. Facilitating Neural Dynamics for Delay Compensation and Prediction in Evolutionary Neural Networks. Genetic and Evolutionary Computation Conference (GECCO 2006), Nominated for Best Paper Award in the Artificial Life/Evolutionary Robotics/Adaptive Behavior track, 167-174, July 7-12, Seattle, WA, 2006. [pdf]
4. H. Lim and Y. Choe. Facilitatory Neural Activity Compensating for Neural Delays as a Potential Cause of the Flash-Lag Effect. International Joint Conference on Neural Networks (IJCNN 2005), 268-273, July 31-August 4, Montreal, Canada, 2005. [pdf]
5. H. Lim and J. Yen. Preliminary Study of Attention Control Modeling for Complex Skills Training Environments. Ahmed Y. Tawfik & Scott D. Goodwin Eds., Lecture Notes in Artificial Intelligence 3060, 120-132, Springer, 17th Canadian Conference on Artificial Intelligence, London, Canada, 2004. [pdf]
6. H. Lim and G. Choi. Implementation of Intelligent Network Application Protocol for an Intelligent Peripheral. In Proceedings of the International Conference on Telecommunications (ICT 99), Vol. 1, 78-82, Cheju, Korea, June 15-18, 1999.
7. H. Lim and G. Choi. Application of INAP to AIN Intelligent Peripheral. Lecture Notes in Computer Science 1385, 278-290, Springer, International Workshop on Advanced Intelligent Network, 1998.
8. H. Lim et al. A Study on Centralized Call Model Supporting Mobility for Broadband IN. In Proceedings of 3rd IEEE Malaysia International Conference on Communications, Kualar Lumpur Malaysia, November 10-13, 1997.
9. Eleven papers are shorten (see my cv for details)
Abstracts and Posters:
1. H. Lim, Y. Wang, and D. J. Felleman. Selectivity for Luminance and Chromatic Contrast- Defined Contours Distinguish V2 Thin, Thick, and Interstripes. In Program No. 229.3, Society for Neuroscience, Slide, San Diego, Nov.3-7, 2007. Online.
2. H. Lim and Y. Choe. Facilitatory Synapses: the Role of Neural Delay Compensation. In Korean-American Bio-Medical Scientists Symposium, Poster Session. Texas Medical Center, Houston. Bioneer Award. Nov. 11, 2006.
3. H. Lim and Y. Choe. Extrapolative Role of Facilitatory Synapses in the Compensation of Neural Delay. In Spring Faculty of Neuroscience Symposium Poster Session. Sponsored by Texas A&M University, Texas A&M University System-Health Science Center, Local Chapter of the Society of Neuroscience, and Recovery of Function Graduate Training Program. May 19, 2006.
4. H. Lim and Y. Choe. Extrapolative Role of Facilitatory Synapses in the Compensation of Neural Delay. In Society for Neuroscience Abstracts. Washington, DC: Society for Neuroscience, 2005. Program No. 41.19.[pdf]
5. A. Jones, H. Lim and Y. Choe. Delay Compensation in Multi-Neuron Networks Using Facilitatory Neural Dynamics. Best Poster Award, Undergraduate Summer Research Grants Program (USRG), Texas A&M University, August 8, 2005.
6. H. Lim and Y. Choe. Facilitatory Neural Activity for Delay Compensation in the Nervous System. Post-IJCNN2005 Workshop, Biologically-Inspired Models and Hardware for Human-like Intelligent Functions (BIMH 2005), Montreal, Canada, August 5, 2005.
7. H. Lim and Y. Choe. Facilitatory Neural Dynamics for Extrapolation and Delay. World Association of Modelers First Annual Biologically Accurate Modeling Meeting (WAM-BAMM 2005), San Antonio, TX, March 31 - April 2, 2005.

Demos

2D Pole-Balancing tasks with neural transmission delay (tested on Facilitating Activity Networks)
Flash-Lag Effects: Visual illusions, clues for the existence of Delay Compensation in the central nervous system
- FLEs (avi)
- FLEs (swf)

Teaching Assistant

Summer 2006: CPSC 211-301 Data Structures and Algorithms Implementation in Java and C (Instructor: Dr. Teresa Leyk)
Spring 2006: CPSC 203-500 Introduction to Computing (Instructor: Dr. Glen Williams)
Fall 2005: CPSC 203-500 Introduction to Computing
Spring 2005: CPSC 203-500 Introduction to Computing
Fall 2004: CPSC 625-600 Artificial Intelligence
Summer 2004: CPSC 206-500 Structured Programming in C
Spring 2004: CPSC 425-200 Artificial Intelligence

Service

Paper Review
- IEEE World Congress on Computational Intelligence (WCCI 2008).
- Neural Networks (Special Issue for IJCNN 2007).
- International Joint Conference on Neural Networks (IJCNN 2007).
- IEEE Conference on Cybernetics and Intelligent Systems (CIS 2004).
Technical Committee of WCCI 2008 (IJCNN section)
Panelist in a Graduate Student Panel for Undergraduate Summer Research Grants Program (USRG) at Texas A&M University, Aug 8, 2005.
Research Mentor for Undergraduate Student. Undergraduate Summer Research Grants Program (USRG) at Texas A&M University, Summer 2005 (Student received Best Poster award ).
Mentor for New Graduate Students in the Department of Computer Science at Texas A&M University, 2003-2005.

Resources

People

Larry Abbott: Columbia University, Center for Theoretical Neuroscience
Laurence F. Abbott: Brandeis University. Biology Modeling Neurons and Neural Networks
Dean Buonomano: UCLA, Departments of Neurobiology and Psychology
Thomas Busey: Indiana University, Department of Psychology and Program in Cognitive Science
Netta Cohen: University of Leeds, BioSystem Group
Daniel Felleman: The University of Texas Medical School at Houston, Neurobiology & Anatomy
Wulfram Gerstner: EPFL, Swiss, Laboratory of Computational Neuroscience
Mark Gluck: Rutgers University, Center for Molecular and Behavioral Neuroscience
Viktor Jirsa: Florida Atlantic University, Theoretical Neuroscience Group
Paul Lyons: University of Virginia, Department of Neurology (Epilepsy, Autism)
Risto Miikkulainen: The University of Texas at Austin, Computer Science
Aude Oliva: MIT, Brain and Cognitive Science Department, Computational Visual Cognition Lab.
Rajesh P.N. Rao: University of Washington, Neurobiology and Behavior Program
Gene Stoner: Salk Institute, Systems Neurobiology Laboratory

Activity

Training Program
- Spring, 2007 - Present. Postdoctoral Certificate Training Program, Office of Postdoctoral Affairs, UT Health Science Center at Houston
Member
Talks
- Slide talk at Annual Meeting of Society for Neuroscience. Selectivity for Luminance and Chromatic Contrast-Defined Contours Distinguish V2 Thin, Thick, and Interstripes. San Diego, Nov. 4, 2007.
- Invited talk at the Department of Neurobiology and Anatomy at the University of Texas-Health Science Center (hosted by Dr. Valentin Dragoi). Facilitatory Neural Dynamics for Predictive Extrapolation. June 30, 2006.
- Guest Lecture in CPSC 633 (Machine Learning, Instructor: Yoonsuck Choe). Extrapolatory Perception using Spike-Timing Dependent Plasticity and Facilitating Synapses. Department of Computer Science, Texas A&M University, Feb 6, 2006.
- Parasol Seminar. Facilitatory Neural Dynamics for Predictive Extrapolation. Department of Computer Science, Texas A&M University, Jan 27, 2006.
- Guest Lecture in CPSC 625 (Artificial Intelligence, Instructor: Yoonsuck Choe). Extrapolatory Perception using Facilitating Synapses: a Potential Neural Basis for Delay Compensation. Department of Computer Science, Texas A&M University, Nov 29, 2005.
- Parasol Seminar. Facilitatory Neural Activity for Delay Compensation in the Nervous System. Department of Computer Science, Texas A&M University, Oct 21, 2005.
Links
Misc

Last Updated : Fri, 22-Feb-2008 16:17:55 CDT

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