Publications de Roberta Ronchi

An immersive virtual reality tool for assessing left and right unilateral spatial neglect

Olaf Blanke, Andrea Serino, Roberta Ronchi

The reported rate of the occurrence of unilateral spatial neglect (USN) is highly variable likely due to the lack of validity and low sensitivity of classical tools used to assess it. Virtual reality (VR) assessments try to overcome these limitations by pr ...

Wiley2024

An immersive virtual reality system for ecological assessment of peripersonal and extrapersonal unilateral spatial neglect

Ravi Tej Sai Giridhar Tadi, Olaf Blanke, Andrea Serino, Roberta Ronchi

BackgroundUnilateral spatial neglect (USN) is a debilitating neuropsychological syndrome that often follows brain injury, in particular a stroke affecting the right hemisphere. In current clinical practice, the assessment of neglect is based on old-fashion ...

BioMed Central2023

Disownership of body parts as revealed by a visual scale evaluation. An observational study

Dragana Viceic, Olaf Blanke, Roberta Ronchi, Michela Bassolino, Giuseppe Vallar

The disownership of body parts, that most frequently occurs on the left side of the body, contralateral to right-hemispheric lesions, is an infrequent disorder, as usually assessed by interviews asking for dichotomic "yes/no" responses. This observational ...

2020

Insula mediates heartbeat related effects on visual consciousness

Bruno Herbelin, Olaf Blanke, Javier Bello Ruiz, Jonathan Dönz, Roy Salomon, Roberta Ronchi, Nathan Quentin Faivre

Interoceptive signals, such as the heartbeat, are processed in a network of brain regions including the insular cortex. Recent studies have shown that such signals modulate perceptual and cognitive processing, and that they impact visual awareness. For exa ...

2018

Heartbeat-enhanced immersive virtual reality to treat complex regional pain syndrome

Bruno Herbelin, Olaf Blanke, Javier Bello Ruiz, Andrea Serino, Roberta Ronchi, Thomas Schmidlin, Marco Solcà

OBJECTIVES: To develop and test a new immersive digital technology for complex regional pain syndrome (CRPS) that combines principles from mirror therapy and immersive virtual reality and the latest research from multisensory body processing. METHODS: In t ...

2018

Illusory hand ownership in a patient with personal neglect for the upper limb, but no somatoparaphenia

Olaf Blanke, Lukas Heydrich, Andrea Serino, Roberta Ronchi

The symptoms of patients with left personal neglect are characterized by inattention towards contralesional (left) body parts while at the same time explicitly ascertaining ownership for the neglected hemibody. It is currently unknown if personal neglect i ...

British Psychological Society2018

Bodily self-consciousness and its disorders, The Parietal Lobe

Olaf Blanke, Roberta Ronchi, Hyeongdong Park

Research in clinical and human neuroscience indicates that important brain mechanisms of self-consciousness are based on the integration of multisensory bodily signals (i.e., bodily self-consciousness: BSC), including signals coming from outside our body ( ...

2018

Virtual reality improves embodiment and neuropathic pain caused by spinal cord injury

Olaf Blanke, Estelle Palluel, Polona Pozeg, Roberta Ronchi, Marco Solcà

Objective: To investigate changes in body ownership and chronic neuropathic pain in patients with spinal cord injury (SCI) using multisensory own body illusions and virtual reality (VR). Methods: Twenty patients with SCI with paraplegia and 20 healthy cont ...

Lippincott Williams & Wilkins2017

Interoceptive signals impact visual processing: Cardiac modulation of visual body perception

Olaf Blanke, Javier Bello Ruiz, Christian Pfeiffer, Mariia Kaliuzhna, Roberta Ronchi, Fosco Bernasconi

Multisensory perception research has largely focused on exteroceptive signals, but recent evidence has revealed the integration of exteroceptive signals with interoceptive information. Such research revealed that heartbeat signals affect sensory (e.g., vis ...

Elsevier2017

Left neglect dyslexia: Perseveration and reading error types

Roberta Ronchi, Giuseppe Vallar

Right-brain-damaged patients may show a reading disorder termed neglect dyslexia. Patients with left neglect dyslexia omit letters on the left-hand-side (the beginning, when reading left-to-right) part of the letter string, substitute them with other lette ...

Elsevier2016

The Insula Mediates Access to Awareness of Visual Stimuli Presented Synchronously to the Heartbeat

Bruno Herbelin, Olaf Blanke, Rémi Martet, Javier Bello Ruiz, Jonathan Dönz, Roy Salomon, Roberta Ronchi, Nathan Quentin Faivre

The processing of interoceptive signals in the insular cortex is thought to underlie self-awareness. However, the influence of interoception on visual awareness and the role of the insular cortex in this process remain unclear. Here, we show in a series of ...

Soc Neuroscience2016

Modulation of pain through cardio-visual stimulation in CRPS patients

Olaf Blanke, Javier Bello Ruiz, Roberta Ronchi, Thomas Schmidlin, Marco Solcà

Wiley-Blackwell2015

Right insular damage decreases heartbeat awareness and alters cardio-visual effects on bodily self-consciousness

Bruno Herbelin, Olaf Blanke, Javier Bello Ruiz, Roberta Ronchi, Marta Lukowska

Recent evidence suggests that multisensory integration of bodily signals involving exteroceptive or interoceptive information modulates bodily aspects of self-consciousness such as self-identification and self-location. In the so-called full body illusion ...

Pergamon-Elsevier Science Ltd2015

(Un)awareness of unilateral spatial neglect: A quantitative evaluation of performance in visuo-spatial tasks

Roberta Ronchi, Giuseppe Vallar

Right-brain-damaged patients with unilateral spatial neglect are usually unaware (anosognosic) about their spatial deficits. However, in the scientific literature there is a lack of systematic and quantitative evaluation of this kind of unawareness, despit ...

Elsevier Masson2014

Hyperschematia after right brain damage: a meaningful entity?

Roberta Ronchi, Giuseppe Vallar

In recent years we reported three right-brain-damaged patients, who exhibited a left-sided disprortionate expansion of drawings, both by copying and from memory, contralateral to the side of the hemispheric lesion (Neurology, 67: 1801, 2006, Neurocase 14: ...

Frontiers Research Foundation2014