Barrel cortex function
Dirk Feldmeyer,Michael Brecht,Fritjof Helmchen,Carl C.H. Petersen,James F.A. Poulet,Jochen F. Staiger,Heiko J. Luhmann,Cornelius Schwarz +7 more
TL;DR: It is argued that in order to understand neocortical function one needs to combine a microscopic view, elucidating the workings of the local columnar microcircuits, with a macroscopic view, which keeps track of the linkage of distant cortical modules in different behavioral contexts.
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About: This article is published in Progress in Neurobiology. The article was published on 01 Apr 2013. and is currently open access. The article focuses on the topics: Barrel cortex & Cortical column.
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References
Laminar and Columnar Organization of Ascending Excitatory Projections to Layer 2/3 Pyramidal Neurons in Rat Barrel Cortex
Gordon M. Shepherd,Karel Svoboda +1 more
TL;DR: The data indicate that barrel-related and septum-related columns are associated with distinct functional circuits, with L4→2/3barrel and L5A→2septum representing the intracortical continuations of, respectively, the subcortical lemniscal and paralemniscal systems conveying somatosensory information to the barrel cortex.
L2/3 Interneuron Groups Defined by Multiparameter Analysis of Axonal Projection, Dendritic Geometry, and Electrical Excitability
TL;DR: A hierarchical scheme of identifying L2/3 INs can be classified as 4 types of axonal projections and 9 groups can be subclassified as 9 groups with a high within-group similarity of dendritic, axonal, and electrical parameters are proposed.
AMPA receptor channels with long-lasting desensitization in bipolar interneurons contribute to synaptic depression in a novel feedback circuit in layer 2/3 of rat neocortex.
TL;DR: It is concluded that in the local circuits between pyramidal and bipolar cells the desensitization of AMPARs in bipolar cells contributes to low-pass feedback inhibition of layer 2/3Pyramidal neurons by bipolar cells.
Cortical feed-forward networks for binding different streams of sensory information.
TL;DR: Using recordings from triplets of rat cortical layer 2/3 and layer 5 pyramidal neurons, it is shown that specific subnetworks within layer 5 receive input from different layer2/3 subnetwork.
Classification of NPY-Expressing Neocortical Interneurons
Anastassios Karagiannis,Thierry Gallopin,Csaba Dávid,Demian Battaglia,Hélène Geoffroy,Jean Rossier,Elizabeth M. C. Hillman,Jochen F. Staiger,Bruno Cauli +8 more
TL;DR: This study characterized distinct populations of NPY neurons in acute slices of rat barrel cortex by means of whole-cell patch-clamp recordings, biocytin labeling, and single-cell reverse transcriptase-PCR designed to probe for the expression of well established molecular markers for cortical neurons.