A. David Redish, Ph.D.
Associate Professor, Department of Neuroscience
Alfred
P. Sloan Research Fellow
for 2003 - 2005
E-mail: redish@umn.edu
Personal Webpage: http://redishlab.neuroscience.umn.edu/
Research Interests:
Modern neuroscience sees the brain as an information-processing
device. Understanding how the brain processes information requires
understanding the representations used by the network of neurons that
compose the brain. However, representations in the brain are
distributed: each cell carries only a small portion of the total
information. I am interested in questions of how neural structures
work together to create systems able to accomplish behavioral tasks.
Our primary current projects are in the interaction between multiple
learning systems (such as
hippocampus, cortex, and striatum) in the ability to make decisions,
particularly deliberative decisions. We have ongoing
neurophysiological projects examining the dynamics of neural ensembles
during decision-making processes, computational projects examining
the implications of these processes on addiction and other
decision-making dysfunctions, and engineering projects developing new
recording systems.
Selected Publications:
(For a comprehensive list of recent publications, refer to PubMed, a service provided by the National Library of Medicine.)
Ferguson JE, Redish AD. Wireless communication with implanted medical devices using the conductive properties of the body. Expert Rev Med Devices. 2011 Jul;8(4):427-33.
Wikenheiser AM, Redish AD. Changes in reward contingency modulate the trial-to-trial variability of hippocampal place cells. J Neurophysiol. 2011 Aug;106(2):589-98. Epub 2011 May 18.
Ferguson JE, Jackson JC, Redish AD. An inside look at hippocampal silent cells. Neuron. 2011 Apr 14;70(1):3-5. PMID:21482350[PubMed] Related citations
van der Meer MA, Redish AD. Theta phase precession in rat ventral striatum links place and reward information.J Neurosci. 2011 Feb 23;31(8):2843-54.
van der Meer MA, Kalenscher T, Lansink CS, Pennartz CM, Berke JD, Redish AD. Integrating early results on ventral striatal gamma oscillations in the rat. Front Neurosci. 2010 Sep 15;4:300.
van der Meer MA, Redish AD. Expectancies in decision making, reinforcement learning, and ventral striatum. Front Neurosci. 2010 May 15;4:6.
Kurth-Nelson Z, Redish AD. A reinforcement learning model of precommitment in decision making. Front Behav Neurosci. 2010 Dec 14;4:184.
M. A. A. van der Meer, A. Johnson, N. C. Schmitzer-Torbert, A. D.
Redish (2010) “Triple dissociation of information processing in dorsal
striatum, ventral striatum, and hippocampus on a learned spatial
decision task” Neuron.67:25-32.
A. S. Gupta, M. A. A. van der Meer, D. S. Touretzky, A. D. Redish
(2010) “Hippocampal replay is not a simple function of experience”
Neuron 65(5):695-705.
J. E. Ferguson, C. Boldt, A. D. Redish (2009) “Creating low-impedance
tetrodes by electroplating with additives” Sensors and Actuators: A.
Physical 156:338-393.
A. Johnson, A. Fenton, C. Kentros, A. D. Redish (2009) “Looking for
cognition in the structure in the noise” Trends in Cognitive Sciences
13(2):55-64.
M. A. A. van der Meer, A. D. Redish (2009) “Covert
expectation-of-reward in rat ventral striatum at decision points”
Frontiers in Integrative Neuroscience 3(1):1-15.
A. D. Redish, S. Jensen, A. Johnson (2008) “A unified framework for
addiction: vulnerabilities in the decision process” Behavioral and
Brain Sciences 31:415-437 with discussion pp. 437-487.
N. C. Schmitzer-Torbert, A. D. Redish (2008) “Task-dependent encoding
of space and events by striatal neurons is dependent on neural
subtype” Neuroscience 153(2):349-360.
J. C. Jackson, A. D. Redish (2007) “Network dynamics of hippocampal
cell-assemblies resemble multiple spatial maps within single tasks”
Hippocampus 17:1209-1229.
A. Johnson, A. D. Redish (2007) “Neural ensembles in CA3 transiently
encode paths forward of the animal at a decision point” Journal of
Neuroscience 27(45):12176-12189.
A. D. Redish, S. Jensen, A. Johnson, Z. Kurth-Nelson (2007)
“Reconciling reinforcement learning models with behavioral extinction
and renewal: implications for addiction, relapse, and problem
gambling.” Psychological Review 114(3): 784-805.
Former Graduate Students:
Adam Johnson (Ph.D. 2008, Neuroscience, University of Minnesota).
Jadin Jackson (Ph.D. 2007, Neuroscience, University of Minnesota).
Neil Schmitzer-Torbert (Ph.D. 2004, Neuroscience, University of Minnesota). |
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