Gabriel Baud-Bovy

Gabriel Baud-Bovy
Università Vita-Salute San Raffaele | UniSR · Faculty of Psychology

PhD

About

99
Publications
16,534
Reads
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1,927
Citations
Citations since 2016
38 Research Items
1207 Citations
2016201720182019202020212022050100150200
2016201720182019202020212022050100150200
2016201720182019202020212022050100150200
2016201720182019202020212022050100150200
Additional affiliations
November 2010 - present
Istituto Italiano di Tecnologia
Position
  • Researcher
September 2003 - present
Università Vita-Salute San Raffaele
Position
  • Professor (Assistant)
September 2003 - present
Università Vita-Salute San Raffaele
Position
  • Professor (Assistant)

Publications

Publications (99)
Article
Full-text available
Humans possess the ability to extract highly organized perceptual structures from sequences of temporal stimuli. For instance, we can organize specific rhythmical patterns into hierarchical, or metrical, systems. Despite the evidence of a fundamental influence of the motor system in achieving this skill, few studies have attempted to investigate th...
Article
The objective of this study was to evaluate the effects of a pretend play‐based training designed to promote the development of socio‐emotional competences. 79 children aged 5 to 6 years were evaluated before and after a pretend play‐based training. The experimental group (39 children) received this programme on emotion comprehension, negative emot...
Article
Full-text available
A key feature of Anorexia Nervosa is body image disturbances, the study of which has focused mainly on visual and attitudinal aspects, did not always contain homogeneous groups of patients, and/or did not evaluate body shape concerns of the control group. In this study, we used psychophysical methods to investigate the visual, tactile and bimodal p...
Poster
A key feature of Anorexia Nervosa (AN) is a distorted perception of the body shape. Recent studies on Eating Disorders (EDs) showed that AN patients exhibit various sensory and perceptual deficits in the visual and tactile modalities. In this study, we investigated visuo-haptic integration in AN patients using Helbig and Banks (2007)’s paradigm, wh...
Poster
Two experiments were carried out to verify whether integration might be hampered when objects are grounded and force is not transmitted between two hands.
Article
Full-text available
When intercepting a moving target, we typically rely on vision to determine where the target is and where it will soon be. The accuracy of visually guided interception can be represented by a model that combines the perceived position and velocity of the target to estimate when and where to hit it and guides the finger accordingly with a short dela...
Article
Full-text available
Providing somatosensory feedback to amputees is a long-standing objective in prosthesis research. Recently, implantable neural interfaces have yielded promising results in this direction. There is now considerable evidence that the nervous system integrates redundant signals optimally, weighting each signal according to its reliability. One questio...
Article
Full-text available
Since it has been demonstrated that spatial cognition can be affected in visually impaired children, training strategies that exploit the plasticity of the human brain should be early adopted. Here we developed and tested a new training protocol based on the reinforcement of audio-motor associations and thus supporting spatial development in visual...
Chapter
In this study, we propose an optimum non-iterative algorithm for the minimum cable tension solution of two degree-of-freedom cable-driven robots. The problem is specifically defined for a cable-driven robot with one end-effector connected to four motors by four cables. A two-cable algorithm and a three-cable algorithm are presented with examples, t...
Chapter
Touching objects in a virtual environment is a challenge that has yet to be addressed convincingly, in part because haptic technology and, in particular, low-cost haptic technology have strong limitations. This work aimed at assessing the impact of Chai3D texture rendering parameters on texture perception. We used Multidimensional Scaling technique...
Article
Full-text available
We have adapted Sternberg’s context-recall task to investigate the neural mechanisms of encoding serial order information in working memory, in 2 male rhesus monkeys. We recorded from primary motor, premotor, and dorsolateral prefrontal cortex while the monkeys performed the task. In each cortical area, most neurons displayed marked modulation of a...
Chapter
This paper presents the process and results of a set of studies within the ABBI EU project, with the general aim to co-design wearable technology (an audio bracelet) together with visually impaired children, starting at a young age. The authors discuss user preferences related to sounds and tactile materials and present the results of a focus group...
Poster
A key to robust perception is the combination and integration of multiple sources of sensory information. Previous studies have shown that the brain can integrate inputs from different sensory-modalities or within the same sense in a statistically optimal fashion. However, the mechanisms of how the brain combines haptic information from the two han...
Poster
Information about our environment and bodies is complex and human sensors often provide uncertain and noisy information. Nevertheless, information coming from different senses is usually at least partially redundant and numerous studies have shown that humans’ nervous system can integrate information from multiple sources in a statistically optimal...
Article
Full-text available
When several persons perform a physical task jointly, such as transporting an object together, the interaction force that each person experiences is the sum of the forces applied by all other persons on the same object. Therefore, there is a fundamental ambiguity about the origin of the force that each person experiences. This study investigated th...
Article
Visually impaired children and adults have difficulties in engaging in positive social interactions. This study assesses social competence in sighted and visually impaired people and to propose a novel interventional strategy in visually impaired children. We designed a task that assesses the ability to initiate and sustain an interaction with the...
Conference Paper
This paper discusses self-efficacy, curiosity, and reflectivity as cognitive and affective states that are critical to learning but are overlooked in the context of affect-aware technology for learning. This discussion sits within the opportunities offered by the weDRAW project aiming at an embodied approach to the design of technology to support e...
Conference Paper
In this short review, we aim at providing an update about recent research on force-feedback devices in educational settings, with a particular focus on primary school teaching. This review describes haptic devices and education virtual environments before entering into the details of domain-specific applications of this technology in schools. Curre...
Article
Full-text available
When watching videos, our sense of reality is continuously challenged. How much can a fundamental dimension of experience such as visual flow be modified before breaking the perception of real time? Here we found a remarkable indifference to speed manipulations applied to a popular video content, a soccer match. In a condition that mimicked real-li...
Conference Paper
The International Workshop on Multimodal Interaction for Education aims at investigating how multimodal interactive systems, firmly grounded on psychophysical, psychological, and pedagogical bases, can be designed, developed, and exploited for enhancing teaching and learning processes in different learning environments, with a special focus on chil...
Article
Full-text available
Since it has been shown that spatial development can be delayed in blind children, focused sensorimotor trainings that associate auditory and motor information might be used to prevent the risk of spatial-related developmental delays or impairments from an early age. With this aim, we proposed a new technological device based on the implicit link b...
Conference Paper
Full-text available
WeDRAW aims to mediate learning of primary school mathematical concepts, such as geometry and arithmetic, through the design, development and evaluation of multisensory serious games, using a combination of sensory interactive technologies. Working closely with schools, using participatory design techniques, the WeDRAW system will be embedded into...
Article
Full-text available
[This corrects the article on p. 10 in vol. 8, PMID: 28144226.].
Article
Full-text available
A low-cost robotic interface was used to assess the visuo-motor performance of patients with Alzheimer’s disease (AD). Twenty AD patients and twenty age-matched controls participated in the study. The battery of tests included simple reaction times, position tracking and stabilization tasks performed with both hands. The regularity, velocity, visua...
Conference Paper
Full-text available
Young children with visual impairments tend to engage less with their surroundings, limiting the benefits from activities at school. We investigated novel ways of using sound from a bracelet, such as speech or familiar noises, to tell children about nearby people, places and activities, to encourage them to engage more during play and help them mov...
Poster
Full-text available
INTRODUCTION: Several studies have recently investigated how Anorexia Nervosa (AN) patients process multimodal information. It has been hypothesized that AN patients might be less reliant on visual perception of bodies than healthy individuals (Longo, 2015). Case et al. 2012 have shown that processing of multimodal information might be disrupted in...
Article
Introduction Several studies recently investigated how Anorexia Nervosa patients (ANp) process multimodal information. Longo (2015) hypothesized that ANp might be less reliant on visual perception of bodies than healthy controls (HC). Case et al. showed that processing of multimodal information might be disrupted in ANp. Literature lacks of studies...
Article
Full-text available
Different sensory systems interact to generate a representation of space and to navigate. Vision plays a critical role in the representation of space development. During navigation, vision is integrated with auditory and mobility cues. In blind individuals, visual experience is not available and navigation therefore lacks this important sensory sig...
Article
Full-text available
Neural responses in striatal, limbic and somatosensory brain regions track individual differences in loss aversion, i.e. the higher sensitivity to potential losses compared with equivalent gains in decision-making under risk. The engagement of structures involved in the processing of aversive stimuli and experiences raises a further question, i.e....
Article
Full-text available
In this study, we investigated the integration of force and position information in a task in which participants were asked to estimate the center of a weak force field. Two hypotheses, describing how participants solved this task, were tested: (1) by only using the position(s) where the force reaches the detection threshold, and (2) by extrapolati...
Conference Paper
This paper reports results from two workshops organized with children with visual impairments ranging from blindness to low vision. The aim of the workshops was to suggest gestures for the interaction with a small wearable audio-bracelet. Results show a preference for mechanical buttons and touch-based gestures on the device (mainly tapping and sli...
Article
This paper presents the process and results of a set of studies within the ABBI EU project, with the general aim to co-design wearable technology (an audio bracelet) together with visually impaired children, starting at a young age. The authors discuss user preferences related to sounds and tactile materials and present the results of a focus group...
Article
Full-text available
Considering that cortical plasticity is maximal in the child, why are the majority of technological devices available for visually impaired users meant for adults and not for children? Moreover, despite high technological advancements in recent years, why is there still no full user acceptance of existing sensory substitution devices? The goal of t...
Article
Full-text available
It has been suggested that tactile perception becomes less acute during movement to optimize motor control and to prevent an overload of afferent information generated during action. This empirical phenomenon, known as “tactile gating effect,” has been associated with mechanisms of sensory feedback prediction. However, less attention has been given...
Patent
The system comprises at least one module (11; 111) comprising, in turn: - a sensor apparatus (12), for being worn by a user and designed to detect data representing the arrangement assumed within the space by the part of the user's body on which said sensor apparatus (12) is worn by the user, - a signaling apparatus (14), for providing a signal tha...
Conference Paper
The present paper reports on a games workshop within the ABBI EU project involving children with visual impairments as co-creators. The created games show that it is possible to create fun, rich and social co- located games with wearable technology employing very simple interactivity. Having a device that makes a sound when you move allows for th...
Conference Paper
Full-text available
This study was designed to assess the effectiveness of the Audio Bracelet for Blind Interaction (ABBI) system for improving mobility and spatial cognition in visually impaired children. The bracelet is worn on the wrist and the key feature is to provide an audio feedback about body movements to help visually impaired children to build a sense of sp...
Conference Paper
This work presents a novel haptic device to study human grasp, which integrates different technological solutions thus enabling, for the first time, to achieve: (i) a complete grasp characterization in terms of contact forces and moments; (ii) an estimation of contact point location for varying-orientation contact surfaces; (iii) a compensation of...
Conference Paper
Full-text available
The ABBI (Audio Bracelet for Blind Interaction) device is designed for visually impaired and blind children to wear on the wrist and produce sound based on the movement of the arm through space. The primary function is to inform a child (or adult) about his/her own movements to aid spatial cognition rehabilitation. However , the device could also b...
Conference Paper
Full-text available
Early onset of blindness adversely affects psychomotor, emotional and social development [1], that mostly depend on spatial cognition. Some studies suggest that the lack of vision could potentially explain this delayed or weakened development since vision is the most accurate and robust sense to encode spatial information [2,3,4]. We recently found...
Conference Paper
Full-text available
ABBI, the audio bracelet for blind interaction, aims to rehabilitate spatial cognition, mobility and social interaction in children and adults with visual deficits through natural audio-motor and tactile-motor interactions. ABBI is a new tool that provides spatial information on where and how the body is moving, providing significant information re...
Article
Low-cost gaming technologies offer promising devices for the rehabilitation of stroke patients at home. While several attempts have been made to use low-cost motion tracking devices (Kinect) or balance boards (Wii Board), the potential of low-cost haptic devices has yet to be explored in this context. The objective of this study was to investigate...
Chapter
Softness perception offers a good opportunity to study how position and force information are integrated during exploratory movements. This chapter presents a model of how this integration might happen when identifying the central position of a very weak elastic force field rendered with a haptic device. In this task, the force near the central pos...
Article
Background: The emergence of commercial haptic devices offers new research opportunities to enhance our understanding of the human sensory-motor system. Yet, commercial device capabilities have limitations which need to be addressed. This paper describes the customization of a commercial force feedback device for displaying forces with a precision...
Conference Paper
Full-text available
Introduction Studies of cross-modal plasticity in blind people typically show that blind subjects perform as well as, or even better than, sighted controls when tested for various auditory or tactile discrimination tasks. Differently, we report that visually impaired adults and children are impaired in those auditory and proprioceptive tasks that r...
Article
Full-text available
Saccades cause compression of visual space around the saccadic target, and also a compression of time, both phenomena thought to be related to the problem of maintaining saccadic stability (Morrone et al., 2005; Burr and Morrone, 2011). Interestingly, similar phenomena occur at the time of hand movements, when tactile stimuli are systematically mis...
Conference Paper
The performance of a haptic device generally varies across its workspace. This work measures the force rendering accuracy and maximum force output rendering capabilities of two commercial devices – the Falcon and Omega devices – in six directions at 46 and 49 set locations, respectively, in the mechanical workspace. The results are compared to seve...
Conference Paper
Full-text available
We recently showed that congenitally blind adults have severely impaired thresholds in an auditory spatial bisection task, pointing to the importance of vision in constructing auditory spatial maps (Gori et al.2014). To test if also children show a spatial impaired performance, we compared blind and sighted children (6-16 years) on different aspec...
Conference Paper
This paper describes an haptic system designed to vary the stiffness of three contact points in an independent and controllable fashion, by suitably regulating the inner pressure of three pneumatic tactile displays. At the same time, the contact forces exerted by the user are measured by six degree-of-freedom force sensors placed under each finger....
Article
Full-text available
Many human activities are performed in groups and require that the individuals in the group coordinate their actions. For example, carrying bulky objects, dancing, handshaking, musicians playing together in an orchestra are examples of joint actions. A crucial aspect of joint action is that it requires that the partners share information and commun...
Conference Paper
Full-text available
Video-games are effective and motivating tools in the rehabilitation of patients. This study presents a video-game based platform controlled by a haptic device for the rehabilitation of Neglect patients. Haptic structure, game engine, game design criteria and example games are presented in detail.
Conference Paper
The aim of this work was to create an apparatus that will allow for the study of sensorimotor control development in children, specifically the interaction with a simple kinematically constrained object. A one-degree-of-freedom rotational joystick was built, sensorized with an encoder and force/torque sensor, and outfitted with a custom damper. The...
Conference Paper
The link between time perception and action has attracted special interest in recent years and it is progressively disclosing a multifaceted nature. A large set of temporal effects variously associated to the execution of actions has been documented (Haggard et al., 2002, Hagura et al., 2012, Tomassini et al., 2012 and Yarrow et al., 2001), suggest...
Article
Computer games are a promising tool to support intensive rehabilitation. However, at present, they do not incorporate the supervision provided by a real therapist and do not allow a safe and effective use at patient’s home. We show here how specifically tailored computational intelligence based techniques allow extending exergames with functionalit...
Article
Full-text available
Decision making under risk entails the anticipation of prospective outcomes, typically leading to the greater sensitivity to losses than gains known as loss aversion. Previous studies on the neural bases of choice-outcome anticipation and loss aversion provided inconsistent results, showing either bidirectional mesolimbic responses of activation fo...
Conference Paper
Saccades cause compression of visual space towards the saccadic target, and also a compression of time, both phenomena thought to be related to the problem of maintaining saccadic stability. Interestingly, similar phenomena occur around the time of hand movements, when brief tactile stimuli are systematically mislocalized in the direction of the mo...
Article
Full-text available
The human hand has so many degrees of freedom that it may seem impossible to control. A potential solution to this problem is "synergy control" which combines dimensionality reduction with great flexibility. With applicability to a wide range of tasks, this has become a very popular concept. In this review, we describe the evolution of the modern c...
Conference Paper
Full-text available
Rehabilitation for stroke patients with postural instability or balance disorders can be enhanced using game-based rehabilitative strategies. Our work explored the potential of commercially available haptic devices for a home rehabilitation system. One group of participants used a low-cost device (Falcon) while another group used a high-end device...
Conference Paper
Full-text available
Computer games are a promising tool to support rehabilitation at home. It is widely recognized that rehabilitation games should (i) be nicely integrated in general-purpose rehabilitation stations, (ii) adhere to the constraints posed by the clinical protocols, (iii) involve movements that are functional to reach the rehabilitation goal, and (iv) ad...