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Université de Fribourg

Age-related differences in cortical and subcortical activities during observation and motor imagery of dynamic postural tasks: an FMRI study

Mouthon, Audrey ; Ruffieux, Jan ; Mouthon, Michael ; Hoogewoud, Henri-Marcel ; Annoni, Jean-Marie ; Taube, Wolfgang

In: Neural Plasticity, 2018, p. -

Age-related changes in brain activation other than in the primary motor cortex are not well known with respect to dynamic balance control. Therefore, the current study aimed to explore age-related differences in the control of static and dynamic postural tasks using fMRI during mental simulation of balance tasks. For this purpose, 16 elderly (72 ± 5 years) and 16 young adults...

Université de Fribourg

Are people with aphasia (pwa) involved in the creation of quality of life and aphasia impact-related questionnaires? A scoping review

Charalambous, Marina ; Kambanaros, Maria ; Annoni, Jean-Marie

In: Brain Sciences, 2020, vol. 10, no. 10, p. 688

Background: Quality of Life (QoL) questionnaires are used to describe the impact of aphasia on stroke survivors’ life. People with aphasia (PWA) are traditionally excluded from research, potentially leading to a mismatch between the factors chosen in the tools and the realistic needs of PWA. The purpose of this review was to determine the direct involvement of PWA in the creation of QoL and...

Université de Fribourg

Auditory time perception in Huntington’s disease

Vez, S. ; Köhli, J. ; Frey, B. ; Magezi, David A. ; Annoni, Jean-Marie ; Burgunder, J.-M.

In: Neuropsychologia, 2018, vol. 119, p. 247–252

Huntington's disease (HD) is characterized by early involvement of the striatum. It affects the pace of repetitive motor activity, as motor timing depends on basal ganglia activity. However, data are lacking on the impact of this process on auditory time perception in motor non-affected gene carriers.Objective: This work aims to test the performance in time perception of a group of mutation...

Université de Fribourg

Balanced bilinguals favor lexical processing in their opaque language and conversion system in their shallow language

Buetler, Karin A. ; Rodríguez, Diego de León ; Laganaro, Marina ; Müri, René ; Nyffeler, Thomas ; Spierer, Lucas ; Annoni, Jean-Marie

In: Brain and Language, 2015, vol. 150, p. 166–176

Referred to as orthographic depth, the degree of consistency of grapheme/phoneme correspondences varies across languages from high in shallow orthographies to low in deep orthographies. The present study investigates the impact of orthographic depth on reading route by analyzing evoked potentials to words in a deep (French) and shallow (German) language presented to highly proficient bilinguals....

Université de Fribourg

Balance training reduces brain activity during motor simulation of a challenging balance task in older adults: an fMRI study

Ruffieux, Jan ; Mouthon, Audrey ; Keller, Martin ; Mouthon, Michaël ; Annoni, Jean-Marie ; Taube, Wolfgang

In: Frontiers in Behavioral Neuroscience, 2018, vol. 12, p. -

Aging is associated with a shift from an automatic to a more cortical postural control strategy, which goes along with deteriorations in postural stability. Although balance training has been shown to effectively counteract these behavioral deteriorations, little is known about the effect of balance training on brain activity during postural tasks in older adults. We, therefore, assessed...

Université de Fribourg

Behavioral and electrophysiological signatures of word translation processes

Jost, Lea B. ; Radman, Narges ; A.Buetler, Karin ; Annoni, Jean-Marie

In: Neuropsychologia, 2018, vol. 109, p. 245–254

Translation is a demanding process during which a message is analyzed, translated and communicated from one language to another. Despite numerous studies on translation mechanisms, the electrophysiological processes underlying translation with overt production remain largely unexplored. Here, we investigated how behavioral response patterns and spatial-temporal brain dynamics differ in a...

Université de Fribourg

Birth and death of a phantom

Dieguez, Sebastian ; Kaeser, Mélanie ; Roux, Camille ; Cottet, Jérôme ; Annoni, Jean-Marie ; Schmidlin, Eric

In: Annals of Clinical and Translational Neurology, 2018, vol. 5, no. 1, p. 98–101

Patients with supernumerary phantom limb report experiencing an additional limb duplicating its physical counterpart, usually following a stroke with sensorimotor disturbances. Here, we report a short-lasting case of a right upper supernumerary phantom limb with unusual visuomotor features in a healthy participant during a pure Jacksonian motor seizure unexpectedly induced by continuous...

Université de Fribourg

Brain activity during observation and motor imagery of different balance tasks: An fMRI study

Taube, Wolfgang ; Mouthon, Michael ; Leukel, Christian ; Hoogewoud, Henri-Marcel ; Annoni, Jean-Marie ; Keller, Martin

In: Cortex, 2015, vol. 64, p. 102–114

After immobilization, patients show impaired postural control and increased risk of falling. Therefore, loss of balance control should already be counteracted during immobilization. Previously, studies have demonstrated that both motor imagery (MI) and action observation (AO) can improve motor performance. The current study elaborated how the brain is activated during imagination and observation...

Université de Fribourg

Characterization of social cognition impairment in multiple sclerosis

Neuhaus, Matthias ; Bagutti, S. ; Yaldizli, O. ; Zwahlen, D. ; Schaub, S. ; Frey, B. ; Fischer-Barnicol, B. ; Martory, J.-M. Burgunderd , M.-D. ; Pöttgen, J. ; Annoni, Jean-Marie ; Penner, I.-K.

In: European Journal of Neurology, 2017, p. -

Multiple sclerosis (MS) has been associated with deficits in social cognition. However, little is known about which domains of social cognition are predominantly affected and what other factors are associated with it. The aim was (i) to characterize social cognition deficit in a group of MS outpatients and (ii) to relate impairment in social cognition to overall cognitive status, depression...