|
OBJECTIVE
My interests are in the neurophysiology of the visual system and
solving neurological problems with biomedical engineering. More specifically, I want to
elucidate how cortical networks perform integrative functions such as
feature binding, scene segmentation, and stereo correspondence.
CAREER EXPERIENCE
Postdoctoral Fellow
Carnegie Mellon University, Center for the Neural
Basis of Cognition
January 2005 – present (supervisor:
Tai Sing Lee, PhD)
Designed and ran experiments exploring
single-unit and ensemble representations of 3D surfaces and mechanisms
of single-unit and ensemble surface segmentation in V1 and V2. Electrophysiological recordings with
single electrodes and arrays in visual cortex of awake and alert
primates.
Grant
Support:
NIMH IBSC
MH64445 (James L McClelland)
Interactive processes in perception (Tai Sing Lee and Carl Olson)
NSF CISE
IIS-0413211 Statistical and
neural basis of 3D surface inference in vision (Tai Sing Lee)
NEI F32
EY017770 Spatial
Integration of V1 Horizontal Disparity Signals (Jason Samonds)
Postdoctoral Fellow
Vanderbilt University, Department of Electrical
Engineering and Computer Science
May 2004 – January 2005 (supervisor:
AB Bonds, PhD)
Designed and ran experiments exploring
origins of cortical synchrony, along with neural ensemble
representations of feature binding and contour detection in primary
visual cortex. Electrophysiological
recordings with 10x10 Bionics array in visual cortex of anesthetized
cats and somatosensory cortex of anesthetized
owl monkeys.
Grant
Support:
NEI RO1
EY014680 Representation of
Visual Information in Striate Cortex (AB Bonds)
Research Assistant
Vanderbilt University, Department of Biomedical
Engineering
May 1999 – May 2004 (supervisor: AB
Bonds, PhD)
Designed and
maintained stimuli, data collection, and data analysis systems on PC,
Sun Microsystems, and custom hardware. Developed and implemented a
broad range of neural signal processing tools (emphasis on
probabilistic signal processing). Successful formulation and submission
of NIH grants (NEI RO1 EY014680). Oral and written presentations to
general and neuroscience audiences. Associated surgical procedures, as
well as anesthesia and physiological monitoring for electrophysiological
recordings from visual cortex of cats. Designed and produced
microelectrodes for single-unit and multi-unit recordings, along with
multi-barrel electrodes for iontophoresis
delivery of neurotransmitter drugs. Implemented and maintained 10x10
and 5x5 Bionics microelectrode arrays for large scale multi-unit
recordings.
Grant
Support:
NEI RO1
EY03778 Spatial
Characteristics of Cells in the Striate Cortex (AB Bonds)
NEI RO1
EY014680 Representation of
Visual Information in Striate Cortex (AB Bonds)
Research Technician
Medical College of Wisconsin, Functional Imaging Research Center
May 1998-May 1999 (supervisor: Thomas E Prieto, PhD)
Mechanical
and electrical design, along with maintenance, of subject interface
systems for functional magnetic resonance imaging studies. Projects
included audio and visual stimuli, feedback and response systems, and
head restraint.
Grant
Support:
NIH P01
MH51358 (James S Hyde)
Subject Interface Systems (Thomas E Prieto)
EDUCATION
Vanderbilt University, Nashville TN
Doctor of Philosophy in Biomedical
Engineering, May 2004
Vanderbilt University, Nashville TN
Spatiotemporal analysis of synchronization
of neural ensembles for spatial discriminations in cat striate cortex. Vanderbilt University PhD Dissertation, 2004. (pdf)
Master of Science in Biomedical Engineering,
May 2002
Vanderbilt University, Nashville TN
Spike train analysis of spatial
discriminations and functional connectivity of pairs of neurons in cat
striate cortex. Vanderbilt University MS Thesis,
2002. (pdf)
G.P.A. 3.44(4.0)
Curriculum: Real-time Systems, Bioelectrical Signals, DSP, Artificial
Intelligence, Neural Networks, Morphological Image Processing, Medical Imaging,
Excitable Membranes, Visual System.
Workshops: NIPS Spike Train Analysis, UC-Berkeley BioMEMS
Research Assistantship,
Academic Scholarship, Graduate School Travel
Awards, Student Paper Award
Milwaukee School of Engineering, Milwaukee WI
Bachelor of Science in Biomedical
Engineering, May 1999
Senior Design: Heart Sound Simulator, Design
Team Associate Project Manager
G.P.A.
3.69(4.0) Major G.P.A. 3.70(4.0)
Curriculum: Instrumentation, Imaging, Signals, Control Systems,
Thermo/Fluids, Biomedical Design, Biomaterials.
Workshops:
MCW fMRI Experiment Design & Issues
Alumni
Association Student Achievement Award
M.S.O.E.,
Walton Foundation, and Pearl Noren Scholarships
PUBLICATIONS
Invited Talks:
Spatiotemporal
analysis of synchronization of neural ensembles for spatial
discriminations in cat striate cortex. Sloan-Swartz Center, Salk Institute for Biological Studies.
La Jolla,
CA. April
26, 2004. (slide show)
Neuronal Ensemble
Recording in the Cat Primary Visual Cortex. Center for the Neural Basis of Cognition. Carnegie
Mellon
University.
Pittsburgh,
PA.
July
23, 2004.
Evidence of cooperative and competitive
mechanisms for stereo computation in macaque V1. Workshop: What
role does spike synchrony or correlation play in sensory processing? Cosyne, The Canyons, Utah.
February
26-27, 2007 (slide show)
Workshops Organized:
Samonds JM, Smith
MA. What role does spike synchrony or correlation play in sensory
processing? Cosyne, The Canyons, Utah.
February
26-27, 2007 (link)
Presentations:
Allison JD, Smith KR, Atherton ME, Samonds JM, Bonds AB. Temporal
frequency tuning of cross orientation inhibition in the striate cortex
of cats. [ARVO abstr] Invest Ophthalmol Vis Sci,
2000. (abstract) (poster) (related article)
Brown HA, Allison JD, Samonds JM, Bonds AB. Nonlocal
origin of response supression from stimulation
outside the Classic Receptive Field in Area 17 of the cat. [VSS abstr] J Vision 1(3):200a, 2001. (abstract)
Brown HA, Allison JD, Samonds JM, Bonds AB. Area 18 contribution to
spatial integration of receptive fields of area 17 cells in the cat.
[VSS abstr] J Vision 2(7):582a, 2002. (abstract)
Samonds JM, Allison JD, Brown HA, Bonds AB. Spike train analysis
reveals cooperation between Area 17 neuron pairs that enhances fine
discrimination of orientation. [VSS abstr] J
Vision 2(7):196a, 2002. (poster) (abstract)
Bonds AB, Samonds JM, Allison JD. Spike
train analysis reveals cooperation between Area 17 neuron pairs that
enhances fine discrimination of orientation. Annual Meeting of the
Society for Mathematical Psychology, 2002. (slide show) (abstract)
Brown HA, Allison JD, Samonds JM, Thomas AM, Bonds AB. Characterization
of area 18 modulation from stimulation outside the receptive field of
area 17 cells in the cat. [VSS abstr] J
Vision 3(9):373a, 2003. (abstract)
Samonds JM, Allison JD, Brown HA, Bonds AB. Cooperative Synchronized
Assemblies and Orientation Discrimination. [VSS abstr]
J Vision 3(9):152a, 2003. (slide show) (abstract)
Brown HA, Samonds JM, Bonds AB. Area 18
contributes to contrast adaptation of Area 17 cells in the cat. [VSS abstr] J
Vision 4(8):224a, 2004. (abstract)
Samonds JM*, Brown HA, Bonds AB.
Relationships between the spatiotemporal spike train structure and
cortical synchronization. [VSS abstr] J Vision 4(8):17a, 2004. (slide show) (abstract)
*Student Travel Award
Samonds JM, Bonds AB. Quantitative analysis
of cooperation and structure in the cat striate cortex. Workshop on Coding of Visual
Information in the Brain, Isle of
Skye, Scotland, 2004. (abstract) (paper)
Zhou
Z*, Samonds JM, Bernard MR, Bonds AB.
Synchronous activity in cat visual cortex encodes collinear and cocircular contours. [VSS abstr]
J Vision 5(8):675a, 2005. (poster) (abstract)
*Student
Travel Award
Bernard
MR, Samonds JM, Zhou Z, Bonds AB.
An integration model of detection and quantification of
synchronous firing within cell groups. [VSS abstr]
J Vision 5(8)676a, 2005. (poster) (abstract)
Samonds
JM*, Potetz B, Lee TS. Cooperative processing
of spatially distributed disparity signals in macaque V1. [VSS abstr] J
Vision 6(6):831a, 2006. (slide show) (abstract)
*Student
Travel Award
Potetz BR, Samonds JM, Lee TS.
Disparity and luminance preference are correlated in macaque V1,
matching natural scene statistics. [Soc
Neurosci abstr],
2006. (slide show) (abstract)
Samonds JM, Potetz
BR, Lee TS. Evidence of cooperative and competitive mechanisms for stereo
computation in macaque V1. [Soc Neurosci abstr],
2006. (poster) (abstract)
Samonds JM, Potetz
BR, Lee TS. Neurophysiological Evidence of
Cooperative Mechanisms for Stereo Computation. [NIPS], 2006. (poster)
Samonds JM, Potetz
BR, Lee TS. Evidence of cooperative and competitive mechanisms for
stereo computation in macaque V1. OIST
Workshop on Cognitive Neurobiology, Onna Village, Okinawa, Japan, 2007. (poster) (abstract)
Samonds JM, Potetz
BR, Lee TS. Implications of neuronal interactions on disparity tuning
in V1. [Soc Neurosci
abstr], 2007. (poster) (abstract)
Peer-reviewed Articles:
Brown HA, Allison JD, Samonds JM, Bonds AB. Nonlocal
origin of response suppression outside of the classical receptive field
in Area 17 of the cat. Vis Neurosci 20(1):85-96, 2003. (pdf)
Samonds JM, Allison JD, Brown HA, Bonds AB. Cooperation between Area 17
neuron pairs enhances fine discrimination of orientation. J Neurosci 23(6):2416-2425, 2003. (pdf)
*Reviewed by the Faculty of 1000
Samonds JM, Allison JD, Brown HA, Bonds AB.
Cooperative synchronized assemblies enhance orientation discrimination.
Proc Nat Acad Sci
USA 101(17):6722-6727, 2004. (pdf) (Daily Register) (Engineering News)
Samonds JM, Bonds AB. From another angle: Differences in
cortical coding between fine and coarse
discrimination of orientation. J Neurophysiol
91(3):1193-1202, 2004. (pdf)
Samonds JM, Bonds AB. Real-time
visualization of neural synchrony for identifying coordinated cell
assemblies. J Neurosci Meth
139(1):51-60, 2004. (pdf) (link)
Samonds JM, Bonds AB. Gamma
oscillation maintains stimulus structure-dependent synchronization in
cat visual cortex. J Neurophysiol 93(1):223-236, 2005. (pdf)
Samonds JM, Zhou Z, Bernard MR, Bonds
AB. Synchronous activity in cat visual cortex encodes collinear and
cocircular contours. J Neurophysiol 95(4):2602-2616,
2006. (pdf)
*Reviewed by the Faculty of 1000
Samonds JM, Potetz
BR, Lee TS. Neurophysiological Evidence of
Cooperative Mechanisms for Stereo Computation. Advances in Neural Information Processing Systems 19, MIT
Press, 2007. (pdf)
Samonds JM, Potetz
BR, Lee TS. Cooperative and competitive interactions facilitate stereo
computations in macaque primary visual cortex. (under
review) 2008.
Reviews and Commentary:
Samonds JM and Bonds AB. Cooperative
and temporally structured information in the visual cortex. Signal
Processing, 85(11):2124-2136, 2005. (pdf)
Samonds JM. Feature configuration modulates
effective connectivity. J Neurosci 26(14):3621-3623, 2006. (pdf)
Kelly RC, Smith MA, Samonds JM, Kohn A,
Bonds AB, Movshon JA, Lee TS. Comparison of recordings
from microelectrode arrays and single electrodes in visual cortex. J Neurosci
27(2):261-264, 2007. (pdf)
(cover)
Invited Reviewer:
Journal of
Neuroscience
Journal of
Neurophysiology
Journal of
Computational Neuroscience
Network: Computation
in Neural Systems
Journal of
Neuroscience Methods
Journal of Vision
Behavioral and
Brain Functions
Signal Processing
AFFILIATIONS
Society for Neuroscience 2006-present
American Physiological Society
2003-present
Visual Sciences Society 2001-present
Association for Research in Vision
& Opthalmology 2000-2001
Institute for Electrical and
Electronics Engineers 1997-present
Engineering in Medicine and Biology
Society 1997-present
Biomedical Engineering Society
1995-present
Tau Omega Mu Honor
Society 1998
COMPUTER
SKILLS
C, ADA, Fortran
programming languages
Matlab (Windows and Linux)
Cadkey
Solidworks and Rapid Prototype design
DOS, Windows, and Unix
environments (also cluster systems)
Microsoft and Corel Office programs
Pspice
INTERESTS
Mountain biking, hiking, photography,
golf, football, basketball, literature
|
