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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High serotonin levels during brain development alter the structural input-output connectivity of neural networks in the rat somatosensory layer IV
Stéphanie Miceli,Moritz Negwer,Fenneke van Eijs,Carla Kalkhoven,Ilja van Lierop,Judith R. Homberg,Dirk Schubert +6 more
TL;DR: The results confirmed previous findings that high levels of 5-HT during development lead to a reduction of the topographical precision of TCA projections toward the barrel cortex and point to a structural and functional reorganization of TCAs, as well as early stage intracortical microcircuitry, following the disruption of5-HT reuptake during critical developmental periods.
Structural Properties of Synaptic Transmission and Temporal Dynamics at Excitatory Layer 5B Synapses in the Adult Rat Somatosensory Cortex.
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TL;DR: Functional and ultrastructural analyses closely link stationary properties, temporal dynamics and endurance of synaptic transmission to vesicular content and distribution within the presynaptic boutons suggesting that functional diversity of L5B synapses is enhanced by their structural heterogeneity.
Characterization and Distribution of Reelin-Positive Interneuron Subtypes in the Rat Barrel Cortex
Theresa Pohlkamp,Csaba Dávid,Bruno Cauli,Thierry Gallopin,Elisabeth Bouché,Anastassios Karagiannis,Petra May,Joachim Herz,Michael Frotscher,Jochen F. Staiger,Hans H. Bock +10 more
TL;DR: These findings emphasize RELN's role as an important IN-marker protein and provide a basis for the functional characterization of Reln-expressing INs and its role in the regulation of inhibitory IN networks.
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Structural determinants underlying the high efficacy of synaptic transmission and plasticity at synaptic boutons in layer 4 of the adult rat 'barrel cortex'
Astrid Rollenhagen,Kerstin Carina Klook,Kerstin Carina Klook,Kurt Sätzler,Guanxiao Qi,Max Anstötz,Dirk Feldmeyer,Dirk Feldmeyer,Joachim H. R. Lübke,Joachim H. R. Lübke +9 more
TL;DR: The geometry and size of AZs, the comparably large readily releasable and recycling pools, together with the tight astrocytic ensheathment, may explain and contribute to the high release probability, efficacy and modulation of synaptic transmission at excitatory L4 synaptic boutons.
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Driving fast-spiking cells induces gamma rhythm and controls sensory responses
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TL;DR: The timing of a sensory input relative to a gamma cycle determined the amplitude and precision of evoked responses and provided the first causal evidence that distinct network activity states can be induced in vivo by cell-type-specific activation.