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Richardson N. Leão

Researcher at Federal University of Rio Grande do Norte

Publications -  68
Citations -  2340

Richardson N. Leão is an academic researcher from Federal University of Rio Grande do Norte. The author has contributed to research in topics: Trapezoid body & Hippocampus. The author has an hindex of 25, co-authored 64 publications receiving 1972 citations. Previous affiliations of Richardson N. Leão include Uppsala University & Australian National University.

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A model of the electrically excited human cochlear neuron. II. Influence of the three-dimensional cochlear structure on neural excitability.

TL;DR: The bony boundary has an insulating influence along every nerve fiber which shifts the stimulation condition from that of a homogeneous extracellular medium towards constant field stimulation: for a target neuron which is stimulated by a ring electrode positioned just below the peripheral end of the fiber the extrace cellular voltage profile is rather linear.
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A Respiration-Coupled Rhythm in the Rat Hippocampus Independent of Theta and Slow Oscillations.

TL;DR: Previous studies are reconciled by showing that the hippocampus can actually produce two low-frequency rhythms at nearby frequencies: one that indeed couples to respiration and another that is coupled to the neocortex, which supports a role for brain oscillations in connecting distant brain regions.
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On High-Frequency Field Oscillations (>100 Hz) and the Spectral Leakage of Spiking Activity

TL;DR: This work shows that high-frequency LFP oscillations can represent either the spectral leakage of spiking activity or a genuine rhythm, depending on recording location, and argues against the idea that all high- frequencies LFP activity stems from spike contamination.
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Topographic organization in the auditory brainstem of juvenile mice is disrupted in congenital deafness.

TL;DR: It is demonstrated that, in the MNTB of congenitally deaf mice, which exhibit no spontaneous auditory nerve activity, the normal tonotopic gradients of neuronal properties are absent and this results suggest an underlying mechanism for the observed topographic gradient of neuronal firing properties.