Article
Multidisciplinary Sciences
Gianluca Finotti, Sara Garofalo, Marcello Costantini, Dennis R. Proffitt
Summary: It is important to understand how the body representation can be modified, and this study used the Rubber Hand Illusion (RHI) to investigate its temporal dynamics. The feeling of Ownership is established within the first 19 seconds of stimulation and continues to grow, but at a slower pace. The feeling of Ownership disappears within 66 seconds after the stimulation ends, highlighting the malleability of body self-consciousness.
SCIENTIFIC REPORTS
(2023)
Article
Multidisciplinary Sciences
V Bruno, P. Sarasso, C. Fossataro, I Ronga, M. Neppi-Modona, F. Garbarini
Summary: The impact of altered gravitational conditions on the sense of body ownership is a significant area of research. Through the study of unconventional gravity conditions, it has been found that the relative weights of visual, proprioceptive, and vestibular inputs change, favoring vision and increasing susceptibility to the rubber hand illusion.
Article
Psychology, Multidisciplinary
Satoshi Shibuya, Satoshi Unenaka, Yukari Ohki
Summary: The rubber hand illusion is a perceptual illusion that can also occur with delayed visual feedback, causing proprioceptive drift. The study found that hand ownership and localization are caused by distinct multisensory integration processes.
FRONTIERS IN PSYCHOLOGY
(2021)
Article
Multidisciplinary Sciences
Daniele Romano, Angelo Maravita, Marco Perugini
Summary: The study found that the experience of the Rubber Hand Illusion is directly related to empathy and self-esteem, while disembodiment and physical sensation are unrelated to individual personality traits. The study provides substantial evidence to use the embodiment scale as a standard questionnaire for future Rubber Hand Illusion studies, and the correlations with personality traits suggest that the embodiment induced by the illusion deeply integrates with the complexity of the individuals and their differences.
SCIENTIFIC REPORTS
(2021)
Article
Multidisciplinary Sciences
Takayuki Niizato, Yuta Nishiyama, Kotaro Sakamoto, Takumi Kazama, Tatsuya Okabayashi, Taiki Yamaguchi
Summary: This study explains the subjective experience during rubber hand illusions using integrated information theory (IIT). The study found that the integrity of the whole system decreases during the illusion, while the integrity of its subsystems increases. The results suggest that IIT can explain the general tendency of ownership illusions and individual differences in subjective experience during the illusions.
SCIENTIFIC REPORTS
(2022)
Article
Psychology, Multidisciplinary
Letizia Della Longa, Sofia Sacchetti, Teresa Farroni, Francis McGlone
Summary: This study suggests that the subjective intensity of tactile stimulation experienced across different conditions modulates the strength of proprioceptive drift during the Rubber Hand Illusion, indicating that different types of tactile stimulation influence the illusion of body ownership perception.
FRONTIERS IN PSYCHOLOGY
(2022)
Article
Behavioral Sciences
Arran T. T. Reader, Sara Coppi, Victoria S. S. Trifonova, H. Henrik Ehrsson
Summary: In this study, the researchers attempted to replicate the reduction in MEP amplitude associated with the rubber hand illusion (RHI) and identify the components of the illusion that might explain these changes. Despite participants reporting the presence of the illusion and shifts in perceived real hand position towards the fake limb, no reduction in MEP amplitude was observed.
BRAIN AND BEHAVIOR
(2023)
Article
Neurosciences
Arran T. Reader, Victoria S. Trifonova, H. Henrik Ehrsson
Summary: The study showed that manipulating body ownership through the rubber hand illusion has little impact on basic motor control, as subjective sensations of rubber hand ownership did not convincingly correlate with kinematic variables according to experimental results.
EUROPEAN JOURNAL OF NEUROSCIENCE
(2021)
Article
Neurosciences
Mel Slater, H. Henrik Ehrsson
Summary: This study analyzes a research on the rubber hand illusion, suggesting that hypnotic suggestibility and expectations have some influence on the illusion, but the main factor is multisensory stimulation. Synchronous stimulation results in a stronger illusion and greater proprioceptive drift compared to asynchronous stimulation. Expectations have a very small effect on the illusion ratings.
FRONTIERS IN HUMAN NEUROSCIENCE
(2022)
Article
Multidisciplinary Sciences
Jan Zbinden, Max Ortiz-Catalan
Summary: Enabling sensory feedback in limb prostheses may not be effective for all amputees, as evidenced by the failure to induce the rubber hand illusion in participants with transhumeral amputation; in a study with 30 able-bodied subjects, tapping and stroking were found to equally induce ownership sensations in two-thirds of the participants; participants immune to the rubber hand illusion were still able to experience ownership over prosthetic limbs in daily life, highlighting a significant limitation of the RHI paradigm.
SCIENTIFIC REPORTS
(2021)
Article
Psychology, Multidisciplinary
Arran T. Reader, Victoria S. Trifonova, H. Henrik Ehrsson
Summary: The study found that in the rubber hand illusion, participants who reported feeling ownership also tended to report touch referral, showing a moderately strong positive relationship between the two. Touch referral was often reported more strongly and frequently than ownership, indicating implications for the experimental paradigm.
FRONTIERS IN PSYCHOLOGY
(2021)
Article
Multidisciplinary Sciences
Noriaki Kanayama, Masayuki Hara, Kenta Kimura
Summary: Virtual reality allows for fast and controllable experimental body image settings, with EEG oscillatory activities providing insights into human multisensory integration processes. However, EEG data recorded in VR environments may be vulnerable to noise, posing challenges for measurement and analysis. The study highlights differences in brain activities between real and VR settings, emphasizing the need to consider these differences in investigating bodily self-perception using VR.
SCIENTIFIC REPORTS
(2021)
Article
Neurosciences
Placido Sciortino, Christoph Kayser
Summary: The neurophysiological processes reflecting body illusions such as the rubber hand remain debated. This study recorded EEG responses in human participants and used multivariate classification to identify temporal markers that reliably differentiate the illusory state from non-illusion epochs after approximately 125 and 275 ms following stimulus onset.
Article
Multidisciplinary Sciences
Lucilla Cardinali, Alessandro Zanini, Russell Yanofsky, Alice C. Roy, Frederique de Vignemont, Jody C. Culham, Alessandro Farne
Summary: Research shows that people can experience an illusion that a mechanical grabber, which looks scarcely like a hand, is part of their body. This indicates that artificial objects can become embodied even though they bear little visual resemblance to the hand.
SCIENTIFIC REPORTS
(2021)
Article
Psychology, Experimental
Renzo C. Lanfranco, Marie Chancel, H. Henrik Ehrsson
Summary: Bodily illusions, such as the rubber hand illusion, have been studied to understand the neural processes that contribute to bodily awareness. Previous methods of studying these illusions relied on subjective questionnaires, but this study introduces a signal detection theory framework to quantify body ownership sensitivity. The results demonstrate that the illusion is associated with changes in body ownership sensitivity and provide evidence that sensory information processing plays a role in these illusions.
Article
Behavioral Sciences
Aikaterini Fotopoulou, Mariana von Mohr, Charlotte Krahe
Summary: Social touch plays an important role in affective regulation, contributing to embodied predictions, homeostatic control, and emotional regulation in social interactions.
CURRENT OPINION IN BEHAVIORAL SCIENCES
(2022)
Article
Neurosciences
Valentina Moro, Valentina Pacella, Michele Scandola, Sahba Besharati, Elena Rossato, Paul M. Jenkinson, Akaterini Fotopoulou
Summary: Neuropsychological disturbances in the sense of limb ownership are associated with both cortical lesions and disconnections of specific functional networks. The sense of body ownership involves the convergence of bottom-up, multisensory integration, and top-down monitoring of sensory salience based on contextual demands.
Article
Behavioral Sciences
Sahba Besharati, Paul M. Jenkinson, Michael Kopelman, Mark Solms, Valentina Moro, Aikaterini Fotopoulou
Summary: This study investigates the influence of neurological disorders of self-awareness on embodied cognition and social cognition. The findings suggest that patients with anosognosia for hemiplegia (AHP) following right-hemisphere damage are more aware of their own motor paralysis when taking a third-person perspective, but perform poorly in judging others' motor abilities. These results reveal the intersecting relationship between bodily self-awareness and self-and-other-directed metacognition.
Article
Anatomy & Morphology
S. Bertagnoli, V Pacella, E. Rossato, P. M. Jenkinson, A. Fotopoulou, M. Scandola, Valentina Moro
Summary: Personal neglect is a disorder in the perception and representation of the body, causing patients to behave as if one side of their body does not exist. Previous research has not adequately investigated this clinical condition as it has been considered a symptom of unilateral spatial neglect. This study tested a new hypothesis that personal neglect may be associated with both cortical and subcortical lesions, as well as disconnections of white matter tracts.
BRAIN STRUCTURE & FUNCTION
(2022)
Article
Clinical Neurology
Anne-Catherine M. L. Huys, Patrick Haggard, Kailash P. Bhatia, Mark J. Edwards
Summary: This study aimed to test whether patients with functional tremor exaggerate their symptom perception and reporting. The results showed that compared to patients with organic tremor and healthy controls, patients with functional tremor did not perceive or report their tremor to be exaggerated.
JOURNAL OF NEUROLOGY
(2022)
Article
Psychology, Clinical
Ruth Knight, Mark Carey, Paul Jenkinson, Catherine Preston
Summary: Research shows that there is a varied relationship between disordered eating in men and sexual orientation and muscularity. Gay men are more likely to experience symptoms related to body attitudes and weight concerns, while heterosexual men are more likely to experience muscularity and restricting related symptoms. Bisexual men generally score lower and should be considered separately.
JOURNAL OF GAY & LESBIAN MENTAL HEALTH
(2022)
Article
Biochemical Research Methods
Ivan Ezquerra-Romano, Maansib Chowdhury, Caterina Maria Leone, Gian Domenico Iannetti, Patrick Haggard
Summary: This paper introduces a non-contact, temperature-controlled, multi-purpose cooling stimulator, which can precisely control the cold sensation stimulation and be used to study different aspects of cold sensation. It avoids the interference of mechanical contact. Through experiments, it is verified that this method can measure the cold detection threshold without mechanical contact, providing a more accurate method for studying cold sensory pathways and cold-touch interactions.
JOURNAL OF NEUROSCIENCE METHODS
(2023)
Article
Biology
Gaiqing Kong, Antonio Cataldo, Miruna Nitu, Lucile Dupin, Hiroaki Gomi, Patrick Haggard
Summary: During self-touch, the combination of kinaesthetic and tactile signals affects haptic perceptions. The size of perceived bumps is influenced by changes in tactile pressure.
PROCEEDINGS OF THE ROYAL SOCIETY B-BIOLOGICAL SCIENCES
(2022)
Article
Multidisciplinary Sciences
Mariana von Mohr, Paulo C. Silva, Eleonora Vagnoni, Angelika Bracher, Tommaso Bertoni, Andrea Serino, Michael J. Banissy, Paul M. Jenkinson, Aikaterini Fotopoulou
Summary: Following positive social exchanges, the neural representation of interactive space around the body expands, and we feel consciously more comfortable being closer to others. This study explores how attachment styles interact with the social malleability of our peripersonal space and interpersonal distance. The findings suggest that attachment anxiety reduces the social malleability of both peripersonal and interpersonal space.
Article
Biology
Ashild Kummen, Patrick Haggard, Gwydion Williams, Lucie Charles
Summary: Research shows that people's perception of freedom is influenced by their behavioral tendencies, even when their choices are biased by habits. This illusion of freedom artificially increases the sense of freedom and has important implications for understanding mechanisms of persuasion.
PROCEEDINGS OF THE ROYAL SOCIETY B-BIOLOGICAL SCIENCES
(2023)
Editorial Material
Psychology, Biological
Ebani Dhawan, Patrick Haggard
Summary: In cases of rape and sexual assault, victims often experience a state of immobility referred to as 'freezing'. Neuroscientific research suggests that this freeze response is a result of fear and threat, which can inhibit the brain circuits responsible for voluntary movement. Thus, defense arguments that blame victims for freezing are inappropriate and unfair.
NATURE HUMAN BEHAVIOUR
(2023)
Review
Psychology, Experimental
Joanna Mash, Paul M. Jenkinson, Charlotte E. Dean, Keith R. Laws
Summary: This review examines studies on strange face illusions, finding that they reliably occur in both mirror-gazing and interpersonal gazing dyad paradigms. Study quality significantly influences the reporting rates of strange face illusions, with higher quality studies associated with lower illusion rates. Reduced light levels, face stimuli, and prolonged eye fixation are important factors for the emergence of strange face illusions. Further high-quality research is needed to establish the prevalence and mechanisms underlying these illusions.
CONSCIOUSNESS AND COGNITION
(2023)
Letter
Clinical Neurology
Anne-Catherine M. L. Huys, Patrick Haggard
JOURNAL OF NEUROLOGY
(2023)
Article
Psychology, Experimental
Paul Mark Jenkinson, Athanasios Koukoutsakis, Elena Panagiotopoulou, Eleonora Vagnoni, Benedetta Demartini, Veronica Nistico, Orsola Gambini, Anastasia Christakou, Aikaterini Fotopoulou
Summary: The understanding of eating disorders is hindered by the lack of integration between existing psychosocial and neurobiological approaches. By analyzing experimental data and using computational models, we found that social and motivational values have a significant impact on eating restriction decisions, which are driven by risk aversion.
JOURNAL OF EXPERIMENTAL PSYCHOLOGY-GENERAL
(2023)