Publications by Fosco Bernasconi

Home-based online line bisection test detects visuo-spatial neglect and pseudoneglect in Parkinson's disease

Olaf Blanke, Fosco Bernasconi, Jevita Potheegadoo, Louis Philippe Albert

Introduction: Parkinson's Disease (PD) may lead to cognitive symptoms, including visuo-spatial attentional deficits such as unilateral spatial neglect (USN). Although there is some evidence for USN in PD patients, especially in those with left-sided onset ...

2025

Visual hallucinations in Parkinson's disease are associated with deficits in social perception

Olaf Blanke, Fosco Bernasconi, Jevita Potheegadoo, Louis Philippe Albert, Neza Vehar

Most structured visual hallucinations (VH) in Parkinson's disease (PD) involve animate-social objects, yet current theories fail to account for the prominent social component of VH in PD. To study social perception in PD patients with VH in a behavioral ta ...

SAGE Publications2025

Numerosity estimation of virtual humans as a digital-robotic marker for hallucinations in Parkinson’s disease

Bruno Herbelin, Olaf Blanke, Fosco Bernasconi, Jevita Potheegadoo, Louis Philippe Albert

Nature Research2024

Numerosity estimation impairment measurement system

Bruno Herbelin, Olaf Blanke, Fosco Bernasconi, Jevita Potheegadoo, Louis Philippe Albert

Numerosity estimation impairment measurement system for diagnostic/prognosis of a neurologi- cal disorder comprising an electronic display device configured to present 3D scene representa- tions/images comprising a plurality of 3D virtual visual stimulus t ...

2024

System for predicting a prognosis of the neuropsychological and/or neuropsychiatric status in a subject

Olaf Blanke, Fosco Bernasconi

The present invention relates to systems and methods for predicting a prognosis of the neuropsychological and/or neuropsychiatric status in a subject based on reports of Minor Hallucination (MH) events in combination with electrophysiological data of the s ...

2024

Robotically-induced auditory-verbal hallucinations: combining self-monitoring and strong perceptual priors

Olaf Blanke, Nathan Quentin Faivre, Fosco Bernasconi, Pavo Orepic, Melissa Faggella

Background. Inducing hallucinations under controlled experimental conditions in nonhallucinating individuals represents a novel research avenue oriented toward understanding complex hallucinatory phenomena, avoiding confounds observed in patients. Audito ...

2024

Single neurons in the thalamus and subthalamic nucleus process cardiac and respiratory signals in humans

Olaf Blanke, Marco Solcà, Fosco Bernasconi, Emanuela De Falco, Mariana Babo Rebelo

2024

Subcortical correlates of consciousness with human single neuron recordings

Michael Eric Anthony Pereira, Olaf Blanke, Nathan Quentin Faivre, Fosco Bernasconi

Subcortical brain structures such as the basal ganglia or the thalamus are involved in regulating motor and cognitive behavior. However, their contribution to perceptual consciousness is still unclear, due to the inherent difficulties of recording subcorti ...

2024

Theta oscillations and minor hallucinations in Parkinson’s disease reveal decrease in frontal lobe functions and later cognitive decline

Olaf Blanke, Fosco Bernasconi

Cognitive decline and hallucinations are common and debilitating non-motor symptoms, usually occurring during later phases of Parkinson’s disease (PD). Minor hallucinations (MH) appear early in the disease course and have been suggested to predict cognitiv ...

2023

Neural signatures of visuo-motor integration during human-robot interactions

Hannes Bleuler, Olaf Blanke, Giulio Rognini, Silvia Marchesotti, Fosco Bernasconi

Visuo-motor integration shapes our daily experience and underpins the sense of feeling in control over our actions. The last decade has seen a surge in robotically and virtually mediated interactions, whereby bodily actions ultimately result in an artifici ...

FRONTIERS MEDIA SA2023

Phantom Boarder Relates to Experimentally‐Induced Presence Hallucinations in Parkinson's Disease

Olaf Blanke, Fosco Bernasconi, Jevita Potheegadoo

Phantom boarder (PB) is the sensation that someone uninvited is in the patient's home despite evidence to the contrary. It is mostly reported by patients with neurodegenerative disorders such as Alzheimer's disease, dementia with Lewy bodies or Parkinson's ...

2023

The diagnostic performance of functional dopaminergic scintigraphic imaging in the diagnosis of dementia with Lewy bodies: an updated systematic review

Olaf Blanke, Fosco Bernasconi, Jevita Potheegadoo

IntroductionDopaminergic scintigraphic imaging is a cornerstone to support the diagnosis in dementia with Lewy bodies. To clarify the current state of knowledge on this imaging modality and its impact on clinical diagnosis, we performed an updated systemat ...

SPRINGER2023

Neuroscience robotics for controlled induction and real-time assessment of hallucinations

Olaf Blanke, Laurent Frédéric Jenni, Masayuki Hara, Giulio Rognini, Eva Blondiaux, Fosco Bernasconi, Herberto Dhanis Pedro De Barros Camacho, Jevita Potheegadoo

Although hallucinations are important and frequent symptoms in major psychiatric and neurological diseases, little is known about their brain mechanisms. Hallucinations are unpredictable and private experiences, making their investigation, quantification a ...

2022

Robot-induced hallucinations in Parkinson’s disease depend on altered sensorimotor processing in fronto-temporal network

Dimitri Nestor Alice Van De Ville, Olaf Blanke, Michel Akselrod, Masayuki Hara, Giulio Rognini, Eva Blondiaux, Stéphanie Konik, Michela Bassolino, Nathan Quentin Faivre, Fosco Bernasconi, Matteo Franza, Jevita Potheegadoo, Giedre Stripeikyte

Hallucinations in Parkinson’s disease (PD) are disturbing and frequent non-motor symptoms and constitute a major risk factor for psychosis and dementia. We report a robotics-based approach applying conflicting sensorimotor stimulation, enabling the inducti ...

2021

Evidence accumulation relates to perceptual consciousness and monitoring

Michael Eric Anthony Pereira, Olaf Blanke, Nathan Quentin Faivre, Fosco Bernasconi, Wenwen Chang, Mi Xue Tan

A fundamental scientific question concerns the neural basis of perceptual consciousness and perceptual monitoring resulting from the processing of sensory events. Although recent studies identified neurons reflecting stimulus visibility, their functional r ...

Nature Research2021

Robot-Induced Mild Hallucinations And Passivity Experiences In Individuals With The 22Q11.2 Deletion Syndrome

Olaf Blanke, Laurent Frédéric Jenni, Eva Blondiaux, Maude Schneider, Fosco Bernasconi, Jevita Potheegadoo, Giedre Stripeikyte

OXFORD UNIV PRESS2020

Sensorimotor conflicts alter metacognitive and action monitoring

Olaf Blanke, Laurène Véronique Vuillaume, Roy Salomon, Nathan Quentin Faivre, Fosco Bernasconi

While sensorimotor signals are known to modulate perception, little is known about their influence on higher-level cognitive processes. Here, we applied sensorimotor conflicts while participants performed a perceptual task followed by confidence judgments. ...

2020

Behavioral and neurophysiological evidence for altered interoceptive bodily processing in chronic pain

Olaf Blanke, Marco Solcà, Fosco Bernasconi, Hyeongdong Park

Whereas impaired multisensory processing of bodily stimuli and distorted body representation are well-established in various chronic pain disorders, such research has focused on exteroceptive bodily cues and neglected bodily signals from the inside of the ...

2020

Sensorimotor Induction of Auditory Misattribution in Early Psychosis

Patric Hagmann, Olaf Blanke, Alessandra Griffa, Pierre Progin, Giulio Rognini, Silvia Marchesotti, Roy Salomon, Andrea Serino, Fosco Bernasconi, Kim Do

Dysfunction of sensorimotor predictive processing is thought to underlie abnormalities in self-monitoring producing passivity symptoms in psychosis. Experimentally induced sensorimotor conflict can produce a failure in bodily self-monitoring (presence hall ...

2020

Thought consciousness and source monitoring depend on robotically-controlled sensorimotor conflicts and illusory states

Hannes Bleuler, Olaf Blanke, Pierre Progin, Masayuki Hara, Giulio Rognini, Polona Pozeg, Roy Salomon, Andrea Serino, Marco Solcà, Fosco Bernasconi, Herberto Dhanis Pedro De Barros Camacho, Giedre Stripeikyte

Thought insertion (TI) is characterized by the experience that certain thoughts, occurring in one’s mind, are not one’s own, but the thoughts of somebody else and suggestive of a psychotic disorder. We report a robotics-based method able to investigate the ...

2020