Unit Leader
Gardner Research Unit
RIKEN Brain Science Institute
2-1 Hirosawa, Wako, Saitama JAPAN 351-0198
tel: +81 (048) 462-1111 x7067
justin@brain.riken.jp
personal website

Yale University
New Haven, CT
September 1989 - May 1993
B.S. in Computer Science

University of California, Berkeley
UCSF
Berkeley and San Francisco, CA
August 1996 - August 2002
PhD in Bioengineering. Thesis advisor: Stephen G. Lisberger

RIKEN Brain Science Institute
Wakoshi, Japan
November 2002 - August 2004
Staff Scientist (Keiji Tanaka lab)

New York University
New York, NY
September 2004 - March 2009
Research Scientist (David Heeger lab)

• Tau Beta Pi national engineering honor society 1993
• B.S. in Computer Science awarded Cum Laude with Distinction in the major 1993
• National Science Foundation Graduate Research Fellowship 1996-1999
• Burroughs Wellcome Fund Fellowship in Quantitative Biology 2001-2002
• Japan Society for the Promotion of Science (JSPS) Fellow 2002-2004
• NRSA from the National Eye Institute 2004-2007
• Burroughs Wellcome Fund Career Award in the Biomedical Sciences 2006-2011

Gardner, J. L., Anzai, A., Ohzawa. I., and Freeman, R. D. (1999) Linear and nonlinear contributions to orientation tuning of simple cells in the cat's striate cortex. Visual Neuroscience 16:1115-1121

Gardner, J. L., and Lisberger, S. G. (2001) Linked target selection for saccadic and smooth pursuit eye movements. Journal of Neuroscience 21(6):2075-2084

Gardner, J. L., and Lisberger, S. G. (2002) Serial linkage of target selection for orienting and tracking eye movements. Nature Neuroscience 5:892-899

Churchland, A. K., Gardner, J. L., Chou, I. H., Priebe, N. J., and Lisberger, S. G. (2003) Directional anisotropies reveal a functional segregation of visual motion processing for perception and action. Neuron 37:1001-1011

Gardner, J. L., Tokiyama, S., and Lisberger, S. G. (2004) A population decoding framework for motion aftereffects on smooth pursuit eye movements. Journal of Neuroscience 24:9035-9048

Gardner, J. L., Sun, P., Waggoner, R. A., Ueno K., Tanaka, K., and Cheng K. (2005) Contrast adaptation and representation in human early visual cortex. Neuron 47:607-620

Sun, P., Ueno K., Waggoner, R. A., Gardner, J. L., Tanaka, K., and Cheng K. (2007) A temporal frequency-dependent functional architecture in human V1 revealed by high-resolution fmri. Nature Neuroscience 10:1404-1406

Gardner, J. L., Merriam, E. P., Movshon, J. A., and Heeger, D.J. (2008) Maps of visual space in human occipital cortex are retinotopic, not spatiotopic. Journal of Neuroscience 28:3988-3999

Dinstein, I., Gardner, J. L., Jazayeri, M., and Heeger, D.J. (2008) Executed and observed movements have different distributed representations in human aIPS. Journal of Neuroscience 28:11231-11239

Gardner, J. L. (2009) Is cortical vasculature functionally organized?. Neuroimage In press:

Gardner, J. L., and Lisberger, S. G. (1999) Linked target selection for saccadic and smooth pursuit eye movements. Society for Neuroscience Miami, FL. 29:564.9

Churchland, A. K., Gardner, J. L., Chou, I. H., and Lisberger, S. G. (2001) Smooth pursuit eye movements are immune to the directional anisotropy of perception. The Society for the Neural Control of Movement Seville, Spain.

Gardner, J. L., and Lisberger, S. G. (2001) The effect of microstimulation in the saccadic frontal eye fields on target selection for smooth pursuit eye movements. The Society for the Neural Control of Movement Seville, Spain.

Gardner, J. L., and Lisberger, S. G. (2001) The effect of microstimulation evoked saccades on target selection for smooth pursuit eye movements. Society for Neuroscience San Diego, CA. 404.9

Gardner, J. L., Sun, P., Waggoner, R. A., Ueno K., Tanaka, K., and Cheng K. (2004) Horizontal shifts of contrast response curves in early human visual cortex: an event-related fmri study. Organization for Human Brain Mapping 10th Annual Meeting. Budapest, Hungary.

Gardner, J. L., Sun, P., Waggoner, R. A., Ueno K., Tanaka, K., and Cheng K. (2004) Contrast adaptation in human early visual cortex as measured with event related BOLD imaging. International Society for Magnetic Resonance in Medicine Twelth Scientific Meeting and Exhibition. Kyoto, Japan. (slide session).

Gardner, J. L., Sun, P., Waggoner, R. A., Ueno K., Tanaka, K., and Cheng K. (2004) Adaptation to contrast in early human visual cortex reveals horizontal shifts of contrast response functions and differential responses to decrements in contrast between V1 and V4. Society for Neuroscience San Diego, CA.

Gardner, J. L., Sun, P., Waggoner, R. A., Ueno K., Tanaka, K., and Cheng K. (2005) Difference in temporal dynamics of positive and negative BOLD responses. International Society for Magnetic Resonance in Medicine 13th Scientific Meeting and Exhibition. Miami, FL. (slide session).

Gardner, J. L., Sun, P., Tanaka, K., Heeger D. J., and Cheng K. (2006) High spatial resolution fmri reveals orientation specific responses in large draining veins. Gordon Research Conference: Brain Energy Metabolism and Blood Flow Magdalen College, Oxford UK.

Gardner, J. L., Sun, P., Tanaka, K., Heeger D. J., and Cheng K. (2006) Classification analysis with high spatial resolution fmri reveals large draining veins with orientation specific responses. Society for Neuroscience Atlanta, GA.

Elisha P. Merriam, Gardner, J. L., Movshon, J. A., and Heeger D. J. (2008) Modulation of human visual cortex responses by gaze direction. Society for Neuroscience Washington DC.

Franco Pestilli, Marisa Carrasco, David J. Heeger, and Gardner, J. L. (2008) Does increased contrast-response in human V1 account for enhanced behavioral performance with attention?. Society for Neuroscience Washington DC.

Gardner, J. L., Franco Pestilli, Marisa Carrasco, and David J. Heeger (2009) Concurrent human fMRI and pychophysical measusrements imply that focused attention improves contrast discrimination by decreasing internal noise. Annual Meeting of Japan Neuroscience Society Nagoya, Japan.

Stimulating the cognitive: Serial linkage of target selection for orienting and tracking eye movements. The Smith-Kettlewell Eye Research Institute. Invited seminar. San Francisco, CA: April 21, 2003

Stimulating the cognitive: Serial linkage of target selection for orienting and tracking eye movements. Osaka University. Invited seminar. Osaka, Japan: September 12, 2003

Contrast adaptation and the BOLD signal in early human visual cortex. National Institute for Physiological Sciences. Symposium Talk. Okazaki, Japan: November 28, 2003

Horizontal shifts of contrast response curves after contrast adaptation in human visual cortex. Hokkaido University. Invited seminar. Sapporo Japan: February 5, 2004

Stimulating the cognitive: Serial linkage of target selection for orienting and tracking eye movements. Columbia University. Invited seminar. New York, NY: January 4, 2005

Contrast adaptation and representation in human early visual cortex. The Smith-Kettlewell Eye Research Institute. Invited seminar. San Francisco, CA: October 6, 2005

High spatial resolution imaging to determine the dependence on spatial scale of classifier performance. Cosyne 2006 Postconference Workshop. Post Conference Workshop. The Canyons, Utah: March 9, 2006

Contrast adaptation and a functional baseline for BOLD activity in human early visual cortex. Yale University Magnetic Resonance Research Center. Invited Seminar. New Haven, CT: March 28, 2006

Inferring population responses in human visual cortex with classification analysis. Fall Vision Meeting. Invited talk. Rochester, NY: October 26, 2008

• Journal of Neurophysiology
• Journal of Neuroscience
• Journal of Vision
• Nature
• Nature Neuroscience
• Neuron
• Vision Research

RIKEN Brain Science Institute
Wakoshi, Japan
June 1997 - August 1997
NSF Summer Institute Fellow

• Conducted optical imaging experiments in Manabu Tanifuji's laboratory

Cold Spring Harbor Laboratory
Cold Spring Harbor, NY
June 1998 and June 2000
Teaching Assistant and Student

• Teaching Assistant for the 2000 Computational Neuroscience: Vision summer course
• Student at the 1998 Computational Neuroscience: Vision summer course

University of California, Berkeley
UCSF
Berkeley and San Francisco, CA
August 1996 - August 2002
PhD in Bioengineering. Thesis advisor: Stephen G. Lisberger

• President of the bioengineering graduate student association (BEAST) 1999-2000
• UCB/UCSF bioengineering graduate group executive committee 1999-2000
• Neuroscience major with minors in applied mathematics and linear systems theory

What can functional imaging tell us about population coding in sensory systems?: Bridging computation, single neurons and imaging. Gardner, J. L., Huk, A., and Schluppeck, D. Cosyne Workshops, Snow Bird, Utah: March 4, 2008

Common computational principls of attention and decision making: can they account for unexpected observations in parietal cortex?. Churchland, A. K., Ditterich, J., and Gardner, J. L. Cosyne Workshops, Snow Bird, Utah: March 3, 2009

Epson Palo Alto Laboratory
Palo Alto, CA
July 1993 - November 1994
Member of Technical Staff
Worked on image processing and compression

Smoking Car Productions
San Francisco, CA
November 1994 - June 1996
Programmer
Core programmer on The Last Express, an action-adventure game published by Broderbund and SoftBank.