Recherche

Afficher tous les résultats pour

Accueil

Personne

Wietske Van der Zwaag

Cette personne n’est plus à l’EPFL

À propos
Confidentialité
Mentions légales

Graph Chatbot

Publications associées (69)

Neural Decoding of Discriminative Auditory Object Features Depends on Their Socio-Affective Valence

Wietske Van der Zwaag, Melissa Saenz

Human voices consist of specific patterns of acoustic features that are considerably enhanced during affective vocalizations. These acoustic features are presumably used by listeners to accurately discriminate between acoustically or emotionally similar vo ...

Oxford University Press (OUP)2016

Ballistocardiogram artifact correction taking into account physiological signal preservation in simultaneous EEG-fMRI

Wietske Van der Zwaag, João Pedro Forjaco Jorge, Ana Francisca Leal Silva Soares, Patricia Figueiredo

The ballistocardiogram (BCG) artifact is currently one of the most challenging in the EEG acquired concurrently with fMRI, with correction invariably yielding residual artifacts and/or deterioration of the physiological signals of interest. In this paper, ...

Elsevier2016

Stroking or Buzzing? A Comparison of Somatosensory Touch Stimuli Using 7 Tesla fMRI

Roberto Martuzzi, Rolf Gruetter, Wietske Van der Zwaag

Studying body representations in the brain helps us to understand how we humans relate to our own bodies. The in vivo mapping of the somatosensory cortex, where these representations are found, is greatly facilitated by the high spatial resolution and high ...

Public Library of Science2015

Physiological noise in human cerebellar fMRI

Rolf Gruetter, Wietske Van der Zwaag, Denis Butticaz, João Pedro Forjaco Jorge

Objectives To compare physiological noise contributions in cerebellar and cerebral regions of interest in high-resolution functional magnetic resonance imaging (fMRI) data acquired at 7T, to estimate the need for physiological noise removal in cerebellar f ...

Springer Verlag2015

EEG and fMRI correlates of non-retinotopic motion processing in the human visual system

Michael Herzog, Yvonne Evelina Thunell, Wietske Van der Zwaag, Gijs Plomp

Association for Research in Vision and Ophthalmology2015

Differential patterns of functional and structural plasticity within and between inferior frontal gyri support training-induced improvements in inhibitory control proficiency

Michaël Mouthon, Wietske Van der Zwaag, Bogdan Draganski

Ample evidence indicates that inhibitory control (IC), a key executive component referring to the ability to suppress cognitive or motor processes, relies on a right-lateralized fronto-basal brain network. However, whether and how IC can be improved with t ...

Wiley-Blackwell2015

Towards high-quality simultaneous EEG-fMRI at 7T: Detection and reduction of EEG artifacts due to head motion

Rolf Gruetter, Wietske Van der Zwaag, João Pedro Forjaco Jorge, Patricia Figueiredo

The enhanced functional sensitivity offered by ultra-high field imaging may significantly benefit simultaneous EEG-fMRI studies, but the concurrent increases in artifact contamination can strongly compromise EEG data quality. In the present study, we focus ...

Elsevier2015

Tonotopic Gradients in Human Primary Auditory Cortex: Concurring Evidence From High-Resolution 7 T and 3 T fMRI

Stephanie Clarke, Wietske Van der Zwaag, Melissa Saenz

The tonotopic representations within the primary auditory cortex (PAC) have been successfully mapped with ultra-high field fMRI. Here, we compared the reliability of this tonotopic mapping paradigm at 7 T with 1.5 mm spatial resolution with maps acquired a ...

Springer2015

Representation of Sound Objects within Early-Stage Auditory Areas: A Repetition Effect Study Using 7T fMRI

Stephanie Clarke, Wietske Van der Zwaag, Melissa Saenz

Environmental sounds are highly complex stimuli whose recognition depends on the interaction of top-down and bottom-up processes in the brain. Their semantic representations were shown to yield repetition suppression effects, i. e. a decrease in activity d ...

Public Library of Science2015

Distinct contributions of Brodmann areas 1 and 2 to body ownership

Roberto Martuzzi, Rolf Gruetter, Olaf Blanke, Sebastian Dieguez Falcon, Wietske Van der Zwaag, Andrea Serino

Although body ownership – i.e. the feeling that our bodies belong to us – modulates activity within the primary somatosensory cortex (S1), it is still unknown whether this modulation occurs within a somatotopically defined portion of S1. We induced an illu ...

Oxford University Press2015

Simultaneous EEG–fMRI at ultra-high field: Artifact prevention and safety assessment

Rolf Gruetter, Wietske Van der Zwaag, João Pedro Forjaco Jorge, Patricia Figueiredo, Özlem Ipek

The simultaneous recording of scalp electroencephalography (EEG) and functional magnetic resonance imaging (fMRI) can provide unique insights into the dynamics of human brain function, and the increased functional sensitivity offered by ultra-high field fM ...

Elsevier2015

EEG-fMRI integration for the study of human brain function

Wietske Van der Zwaag, João Pedro Forjaco Jorge, Patricia Figueiredo

Electroencephalography (EEG) and functional magnetic resonance imaging (fMRI) have proved to be extremely valuable tools for the non-invasive study of human brain function. Moreover, due to a notable degree of complementarity between the two modalities, th ...

Elsevier2014

Comparison of an 8-Channel and a 32-Channel Coil for High-Resolution fMRI at 7 T

Wietske Van der Zwaag, Mayur Narsude, Jana Darulová, Roy Salomon

Multi-channel receive array rf-coils have become widely available for fMRI. The improved SNR and possibility of acquisition acceleration through parallel imaging are especially beneficial for high-resolution studies. In this study, an 8-channel and a 32-ch ...

Springer2014

Improved temporal resolution for functional studies with reduced number of segments with three-dimensional echo planar imaging

Rolf Gruetter, Wietske Van der Zwaag, Tobias Kober, José Pedro Rebelo Ferreira Marques, Mayur Narsude

PURPOSE: To introduce a new k-space traversal strategy for segmented three-dimensional echo planar imaging (3D EPI) that encodes two partitions per radiofrequency excitation, effectively reducing the number excitations used to acquire a 3D EPI dataset by h ...

Wiley-Blackwell2014

Neural correlates of non-retinotopic processing in human visual cortex as determined by 7T fMRI and high-density EEG

Michael Herzog, Yvonne Evelina Thunell, Wietske Van der Zwaag, Gijs Plomp

Human perception is largely non-retinotopic. A bike passes by; we perceive the reflectors on its wheels rotating on a circular orbit. However, the “real” motion is truly different, namely cycloidal. The real, retinotopic motion is invisible because the bik ...

2014

A novel manipulation method of human body ownership using an fMRI-compatible master-slave system

Olaf Blanke, Wietske Van der Zwaag, Tobias Kober, Masayuki Hara, Giulio Rognini, Roy Salomon

Bodily self-consciousness has become an important topic in cognitive neuroscience aiming to understand how the brain creates a unified sensation of the self in a body. Specifically, full body illusion (FBI) in which changes in bodily self-consciousness are ...

Elsevier2014

Human finger somatotopy in areas 3b, 1, and 2: A 7T fMRI study using a natural stimulus

Roberto Martuzzi, Rolf Gruetter, Olaf Blanke, Juliane Farthouat, Wietske Van der Zwaag

To study the properties of human primary somatosensory (S1) cortex as well as its role in cognitive and social processes, it is necessary to noninvasively localize the cortical representations of the body. Being arguably the most relevant body parts for ta ...

Wiley-Blackwell2014

Tuning In to Sound: Frequency-Selective Attentional Filter in Human Primary Auditory Cortex

Stephanie Clarke, Wietske Van der Zwaag, Melissa Saenz

Cocktail parties, busy streets, and other noisy environments pose a difficult challenge to the auditory system: how to focus attention on selected sounds while ignoring others? Neurons of primary auditory cortex, many of which are sharply tuned to sound fr ...

Society for Neuroscience2013

The neural correlates of non-retinotopic processing in human visual cortex: a 7T fMRI study

Michael Herzog, Yvonne Evelina Thunell, Wietske Van der Zwaag, Gijs Plomp

Under normal viewing conditions, due to e.g. the motion of objects, the retinotopic representation of the environment constantly changes. Yet we perceive the world as stable and we easily keep track of moving objects, indicating the presence of non-retinot ...

Association for Research in Vision and Ophthalmology2013

Tapping into the brain: An ultra-high resolution investigation of the sensory-motor system using 7-Tesla fMRI

Rolf Gruetter, Olaf Blanke, Wietske Van der Zwaag, Roy Salomon

Humana Press Inc2013

Page 2 sur 4