P. Drew and L.F. Abbott

Modeling Temporal Combination Selective Neurons in the Songbird

Brandeis University

Neurons in the high vocal center (HVc) of the songbird respond vigorously to sequences of syllables as they appear in the birds own song (such as AB), but they respond weakly or not at all when the same syllables are played individually (A or B), or in a different order (BA). We have constructed a network model that replicates this temporal-sequence selectivity. The model is based on a recurrently connected network that produces a strong resonant response when the pattern of excitation evoked by a stimulus matches the excitation generated within the network. In the model, stimulus B does not generate a strong response by itself because inhibition within the network prevents a matching internally generated resonant signal from arising. However, if stimulus A is presented prior to B, the pattern of activity evoked by A modifies the effective connectivity of the network, making it resonantly responsive to stimulus B. This produces a strong selective network response to the sequence of syllables AB, but not to any other combination.
Friday, February 23, 2024
About the Swartz Foundation...
 
The Swartz Foundation was established by Jerry Swartz (bio) in 1994 . . .
more>
 
Follow us...
 
The Swartz Foundation is on Twitter: SwartzCompNeuro
more>
 
 
2013 Stony Brook Mind/Brain Lecture - Michael Wigler, PhD
 
 
2012 Stony Brook Mind/Brain Lecture - John Donoghue
 
 
Sloan-Swartz Centers Annual Meeting 2011
 
 
2011 Stony Brook Mind/Brain Lecture - Allison J. Doupe
 
 
2011 Banbury Workshop
 
 
Sloan-Swartz Centers Annual Meeting 2010
 
 
2010 Stony Brook Mind/Brain Lecture
 
 
Sloan-Swartz Centers Annual Meeting 2009
 
 
Conference on Neural Dynamics
 
 
2009 Stony Brook Mind/Brain Lecture
 
 
Canonical Neural Computation, April 2009
 
 
2009 Banbury Workshop
 
 
Sloan-Swartz Centers Annual Meeting 2008
 
 
Theoretical and Experimental Approaches to Auditory and Visual Attention - Banbury 2008
 
 
Stony Brook Mind/Brain 2008: Patricia Smith Churchland, B. Phil. D
 
 
Sloan-Swartz Centers Annual Meeting 2007
 
 
New Frontiers In Studies Of Nonconscious Processing - Banbury 2007
 
 
Stony Brook Mind/Brain 2007: Professor Michael Shadlen, MD, PhD
 
 
Multi-level Brain Modeling Workshop 2006
 
 
Sloan Swartz Centers Annual Meeting 2006
 
 
Banbury 2006: Computational Approaches to Cortical Functions
 
 
Stony Brook Mind/Brain 2006: Helen Fisher -- Lecture Videos
 
 
Sloan-Swartz Centers for Theoretical Neurobiology
 
 
Swartz Center for Computational Neuroscience
 
 
Banbury Center Workshop Series
 
 
Other Events
 
www.theswartzfoundation.org                           Copyright © The Swartz Foundation 2024