Publications by Roberto Felipe Salamanca Giron

Impact of spindle-inspired transcranial alternating current stimulation during a nap on sleep-dependent motor memory consolidation in healthy older adults

Friedhelm Christoph Hummel, Takuya Morishita, Manon Chloé Durand-Ruel, Roberto Felipe Salamanca Giron, Maeva Moyne

With the increase in life expectancy and the rapid evolution of daily life technologies, older adults must constantly learn new skills to adapt to society. Sleep reinforces skills acquired during the day and is associated with the occurrence of specific os ...

Oxford University Press (OUP)2025

Single session cross-frequency bifocal tACS modulates visual motion network activity in young healthy population and stroke patients

Friedhelm Christoph Hummel, Estelle Emeline Raffin, Lisa Aïcha Mireille Julie Fleury, Fabienne Windel, Michele Bevilacqua, Roberto Felipe Salamanca Giron, Sarah Bernardina Zandvliet, Pauline Menoud

Objective: This study investigates the impact of single-session, cross-frequency (Alpha-Gamma) bifocal transcranial alternating current stimulation (cf-tACS) to the cortical visual motion network on inter-areal coupling between the primary visual cortex (V ...

2024

Enhancing visual motion discrimination by desynchronizing bifocal oscillatory activity

Friedhelm Christoph Hummel, Estelle Emeline Raffin, Roberto Felipe Salamanca Giron, Sarah Bernardina Zandvliet, Martin Seeber

Visual motion discrimination involves reciprocal interactions in the alpha band between the primary visual cortex (V1) and mediotemporal areas (V5/MT). We investigated whether modulating alpha phase synchronization using individualized multisite transcrani ...

2021

Orchestration of oscillatory activity to improve visual motion discrimination

Roberto Felipe Salamanca Giron

This thesis describes advances in the use of novel configurations of non-invasive brain stimulation over the visual system allowing to modulate of modifying electro-physiological activity, interregional interactions and by it, visual behavior such as motio ...

EPFL2021

Perspectives: Hemianopia—Toward Novel Treatment Options Based on Oscillatory Activity?

Friedhelm Christoph Hummel, Estelle Emeline Raffin, Roberto Felipe Salamanca Giron

Stroke has become one of the main causes of visual impairment, with more than 15 million incidences of first-time strokes, per year, worldwide. One-third of stroke survivors exhibit visual impairment, and most of them will not fully recover. Some recovery ...

2019