Spike sorting: What is it? Why do we need it? Where does it come from? How is it done? How to interpret it?

Spike sorting: What is it? Why do we need it? Where does it come from? How is it done? How to interpret it?A series of lectures on spike sorting. Lecturer: Prof. Christophe Pouzat, a CNRS researcher of the Applied Maths Laboratory of the Paris-Descartes University and a specialist in spike sorting.


NeuroMat training: Prof. Christophe Pouzat on spike sorting

The Research, Innovation and Dissemination Center for Neuromathematics (CEPID NeuroMat) will host from November 25 to 27, a training on spike sorting with Prof. Christophe Pouzat, a specialist in experimental neurophysiology. The event is called "Spike sorting: What is it? Why do we need it? Where does it come from? How is it done? How to interpret it?" and is supported by the São Paulo Research Foundation (FAPESP). The training takes place at the University of São Paulo (USP) and prior registration is required. Live streaming will be available.

Graph analysis of verbal fluency test discriminate between patients with Alzheimer's disease, mild cognitive impairment and normal elderly controls

Laiss Bertola, Natália B. Mota, Mauro Copelli, Thiago Rivero, Breno Satler Diniz, Marco A. Romano-Silva, Sidarta Ribeiro, and Leandro F. Malloy-Diniz

Verbal fluency is the ability to produce a satisfying sequence of spoken words during a given time interval. The core of verbal fluency lies in the capacity to manage the executive aspects of language. The standard scores of the semantic verbal fluency test are broadly used in the neuropsychological assessment of the elderly, and different analytical methods are likely to extract even more information from the data generated in this test. Graph theory, a mathematical approach to analyze relations between items, represents a promising tool to understand a variety of neuropsychological states. This study reports a graph analysis of data generated by the semantic verbal fluency test by cognitively healthy elderly (NC), patients with Mild Cognitive Impairment—subtypes amnestic (aMCI) and amnestic multiple domain (a+mdMCI)—and patients with Alzheimer's disease (AD).

A model for neural activity in the absence of external stimuli

Aline Duarte, Guilherme Ost

We study a stochastic process describing the continuous time evolution of the membrane potentials of finite system of neurons in the absence of external stimuli. The values of the membrane potentials evolve under the effect of chemical synapses, electrical synapses and a leak current.

Prof. Sidarta Ribeiro spreads neuroscience

NeuroMat member Prof. Sidarta Ribeiro took part on November, 13, of a diffusion activity on neuroscience in a school in Cotia, São Paulo State. Report and image by William Melo, Revista Circuito, 11/14/2014.


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The Research, Innovation and Dissemination Center for Neuromathematics is hosted by the University of São Paulo and funded by FAPESP (São Paulo Research Foundation).

 

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