Publications de Xavier Gigandet

Effects of Binaural Spatialization in Wireless Microphone Systems for Hearing Aids on Normal-Hearing and Hearing-Impaired Listeners

Hervé Lissek, Xavier Gigandet, Gilles André Courtois

Little is known about the perception of artificial spatial hearing by hearing-impaired subjects. The purpose of this study was to investigate how listeners with hearing disorders perceived the effect of a spatialization feature designed for wireless microp ...

2018

Subjective evaluation of a spatialization feature for hearing aids by normal-hearing and hearing-impaired subjects

Hervé Lissek, Xavier Gigandet, Gilles André Courtois

Remote microphone systems significantly improve speech intelligibly performance offered by hearing aids. The voice of the speaker(s) is captured close to the mouth by a microphone, then wirelessly sent to the hearing aids. However, the sound is rendered in ...

AES2018

A Connectome-Based Comparison of Diffusion MRI Schemes

Jean-Philippe Thiran, Tobias Kober, Alessandra Griffa, Reto Meuli, Alessandro Daducci, Patric Hagmann, Gunnar Krüger, Xavier Gigandet

Public Library of Science2013

Mapping the human connectome at multiple scales with diffusion spectrum MRI

Jean-Philippe Thiran, Reto Meuli, Kim Do, Patric Hagmann, Djalel Eddine Meskaldji, Xavier Gigandet, Leila Cammoun, Olaf Sporns

The global structural connectivity of the brain, the human connectome, is now accessible at millimeter scale with the use of MRI. In this paper, we describe an approach to map the connectome by constructing normalized whole-brain structural connection matr ...

Elsevier2012

The Connectome Mapper: an open-source processing pipeline to map connectomes with MRI

Jean-Philippe Thiran, Alessandra Griffa, Reto Meuli, Patric Hagmann, Alessandro Daducci, Xavier Gigandet, Leila Cammoun, Alia Lemkaddem

Researchers working in the field of global connectivity analysis using diffusion magnetic resonance imaging (MRI) can count on a wide selection of software packages for processing their data, with methods ranging from the reconstruction of the local intra- ...

Public Library of Science2012

Diffusion Spectrum Imaging after stroke shows structural changes in the contra-lateral motor network correlating with functional recovery

Jean-Philippe Thiran, Reto Meuli, Alessandro Daducci, Djalel Eddine Meskaldji, Gunnar Krüger, Cristina Granziera, Leila Cammoun, Xavier Gigandet

There is growing interest in understanding the role of the non-injured contra-lateral hemisphere in stroke recovery. In the experimental field, histological evidence has been reported that structural changes occur in the contra-lateral connectivity and cir ...

2011

On the reproducibility and anatomical correspondence of DSI tractography

Jean-Philippe Thiran, Reto Meuli, Alessandro Daducci, Patric Hagmann, Cristina Granziera, Gunnar Krüger, Leila Cammoun, Xavier Gigandet

Diffusion spectrum imaging (DSI) is increasingly explored in clinical research. The quantitative value of the DSI technique, however, has still to be established. In this context, a better understanding of the reproducibility and the anatomical corresponde ...

2010

GLOBAL AND LOCAL CONNECTIVITY CHANGES IN SCHIZOPHRENIA INVESTIGATED BY DIFFUSION CONNECTOME

Jean-Philippe Thiran, Reto Meuli, Patric Hagmann, Djalel Eddine Meskaldji, Xavier Gigandet, Leila Cammoun

Elsevier2010

Global brain connectivity analysis by diffusion MR tractography : algorithms, validation and applications

Xavier Gigandet

The human cerebral cortex consists of approximately 1010 neurons that are organized into a complex network of local circuits and long-range connections. During the past years there has been an increasing interest from the neuro-scientific community towards ...

EPFL2009

Predicting Human Resting-State Functional Connectivity from structural Connectivity

Jean-Philippe Thiran, Reto Meuli, Patric Hagmann, Leila Cammoun, Xavier Gigandet, Olaf Sporns

In the cerebral cortex, the activity levels of neuronal populations are continuously fluctuating. When neuronal activity, as measured using functional MRI (fMRI), is temporally coherent across 2 populations, those populations are said to be functionally co ...

2009