There and Back Again: The Corticobulbar Loop

Feedback is a ubiquitous anatomical feature of sensory processing in vertebrates. In this issue of Neuron, two papers (Boyd et al., 2012, and Markopoulos et al., 2012) analyze the features of feedback from olfactory cortex to olfactory bulb.

[1]  Naoshige Uchida,et al.  Odor Representations in Olfactory Cortex: Distributed Rate Coding and Decorrelated Population Activity , 2012, Neuron.

[2]  L. Haberly,et al.  New Features of Connectivity in Piriform Cortex Visualized by Intracellular Injection of Pyramidal Cells Suggest that “Primary” Olfactory Cortex Functions Like “Association” Cortex in Other Sensory Systems , 2000, The Journal of Neuroscience.

[3]  D. Wilkin,et al.  Neuron , 2001, Brain Research.

[4]  V. Murthy,et al.  Functional Properties of Cortical Feedback Projections to the Olfactory Bulb , 2012, Neuron.

[5]  M. Luskin,et al.  The topographic organization of associational fibers of the olfactory system in the rat, including centrifugal fibers to the olfactory bulb , 1983, The Journal of comparative neurology.

[6]  S. Siegelbaum,et al.  Recurrent Circuitry Dynamically Shapes the Activation of Piriform Cortex , 2011, Neuron.

[7]  P. Strick,et al.  Subdivisions of primary motor cortex based on cortico-motoneuronal cells , 2009, Proceedings of the National Academy of Sciences.

[8]  J. Bower,et al.  Olfactory cortex: model circuit for study of associative memory? , 1989, Trends in Neurosciences.

[9]  C. Bardy,et al.  Adult neurogenesis promotes synaptic plasticity in the olfactory bulb , 2009, Nature Neuroscience.

[10]  Dan D. Stettler,et al.  Representations of Odor in the Piriform Cortex , 2009, Neuron.

[11]  G. G. Stokes.  "J." , 1890, The New Yale Book of Quotations.

[12]  Minmin Luo,et al.  Precise Circuitry Links Bilaterally Symmetric Olfactory Maps , 2008, Neuron.

[13]  Donald A. Wilson,et al.  Bidirectional plasticity of cortical pattern recognition and behavioral sensory acuity , 2011, Nature Neuroscience.

[14]  J. Isaacson,et al.  Odor Representations in Olfactory Cortex: “Sparse” Coding, Global Inhibition, and Oscillations , 2009, Neuron.

[15]  Donald A. Wilson,et al.  Cortical Processing of Odor Objects , 2011, Neuron.

[16]  Jeffry S. Isaacson,et al.  Cortical Feedback Control of Olfactory Bulb Circuits , 2012, Neuron.

[17]  B. Strowbridge,et al.  Long-term plasticity of excitatory inputs to granule cells in the rat olfactory bulb , 2009, Nature Neuroscience.

[18]  L. Haberly,et al.  Beta and gamma oscillations in the olfactory system of the urethane-anesthetized rat. , 2003, Journal of neurophysiology.