WorldCat Identities

Farnè, Alessandro

Works: 29 works in 37 publications in 3 languages and 229 library holdings
Roles: Editor, Other, Thesis advisor, Opponent
Classifications: BD418.3, 128.2
Publication Timeline
Most widely held works by Alessandro Farnè
The world at our fingertips : a multidisciplinary exploration of peripersonal space by Frédérique de Vignemont( )

8 editions published in 2021 in English and held by 190 WorldCat member libraries worldwide

What difference is there between the visual experience of watching the moon in the sky and the visual experience of seeing a snake slither by your foot?0It is easy to believe our interpretation of the world is split into a binary mode, between the bodily self and everything outside it. There is, however, a buffer zone in the immediate surrounding of the body, known as peripersonal space, in which boundaries are blurred. The notion of peripersonal space calls into question not only our entrenched theories of perception, but also has major implications on the way we perceive personal and social awareness.0Research has yielded a vast array of exciting discoveries on peripersonal space, across a variety of disciplines: ethology, social psychology, anthropology, neurology, psychiatry, and cognitive neuroscience. The World at Our Fingertips: A Multidisciplinary Exploration of Peripersonal Space brings these perspectives together for the first time, as well as introducing a philosophical dialogue to the questions.0Edited by a team of leading psychologists and philosophers in the fields of peripersonal space and bodily awareness, this comprehensive volume presents the reader with a fresh, accessible dialogue between authorities from vastly different areas of thought
Studying the neural bases of prism adaptation using fMRI: A technical and design challenge by Janet H Bultitude( )

1 edition published in 2016 in English and held by 2 WorldCat member libraries worldwide

Grab an object with a tool and change your body: tool-use-dependent changes of body representation for action by Lucilla Cardinali( )

1 edition published in 2012 in English and held by 2 WorldCat member libraries worldwide

Erratum to: Keeping the world at hand: rapid visuomotor processing for hand-object interactions by Tamar R Makin( )

1 edition published in 2012 in English and held by 2 WorldCat member libraries worldwide

Étude des règles de l'intégration multisensorielle en kinesthésie et de leur évolution liée à l'âge : approches psychophysiques & modélisation bayésienne by Marie Chancel( )

1 edition published in 2016 in French and held by 2 WorldCat member libraries worldwide

In our daily live, our central nervous system uses and integrates multiples sensory information to efficiently and accurately perceive self-body and self-limb movements. An important part of the studies on this perception, called kinesthesia, address the question of the multisensory integration principles in this particular perceptive domain. This thesis brings up some answers to this question, enlightening muscle proprioception major contribution to the elaboration of multisensory kinesthetic percepts in young adults and changes occurring with age in the rules governing the integration of vision touch and muscle proprioception in kinesthesia.Revisiting a classical illusory phenomenon implicitly supposed of visual origin, the mirror paradigm, we investigate how the contralateral muscle proprioceptive afferences contribute to the visuo-proprioceptive estimation of self-arm movements. Indeed, the movement illusion of an arm, hidden behind a mirror, created by the reflection of the contralateral arm moving in this mirror seems to emerge from the integration of visual and bilateral proprioceptive feedbacks, as attested by our results. Then, in order to estimate the relative contribution and interaction of vision, touch, and muscle proprioception, we applied specific sensory stimulations on muscle proprioception, touch and/or vision. These stimulations elicit in perfectly still participants self-hand movement illusions. Combining psychophysics and Bayesian approach, we demonstrate that visual and tactile cue integration leads to an optimization of our ability to discriminate self-hand rotation velocity. Nevertheless, kinesthesia remains biased in favor of proprioceptive cues. Finally, knowing that all sensory systems decline across life span, we study the potential evolution of multisensory integration rules in kinesthesia with age. We show a profound reshaping in the weighting of the three sensory entries in older individuals, in favor of touch and vision, probably due to a relative greater impairment of muscle proprioception
Keeping the world at hand: rapid visuomotor processing for hand-object interactions by Tamar R Makin( )

1 edition published in 2012 in English and held by 2 WorldCat member libraries worldwide

Vision facilitates tactile perception when grasping an object by Georgiana Juravle( )

1 edition published in 2018 in English and held by 2 WorldCat member libraries worldwide

Aim and plausibility of action chains remap peripersonal space by Irene Senna( )

1 edition published in 2019 in English and held by 2 WorldCat member libraries worldwide

Atomoxetine modulates the relationship between perceptual abilities and response bias by Carole Guedj( )

1 edition published in 2019 in English and held by 2 WorldCat member libraries worldwide

Sensing with tools extends somatosensory processing beyond the body by Luke E Miller( )

1 edition published in 2018 in English and held by 2 WorldCat member libraries worldwide

Peripersonal Space and Body Schema: Two Labels for the Same Concept? by Lucilla Cardinali( )

1 edition published in 2009 in English and held by 2 WorldCat member libraries worldwide

Interlimb transfer of sensorimotor adaptation : predictive factors and underlying processes by Hannah Lefumat( )

2 editions published in 2016 in English and held by 2 WorldCat member libraries worldwide

Motor adaptation refers to the capacity of our nervous system to produce accurate movements while the properties of our body and our environment continuously change. Interlimb transfer is a process that directly stems from motor adaptation. It occurs when knowledge gained through training with one arm change the performance of the opposite arm movements. Interlimb transfer of adaptation is an intricate process. Numerous studies have investigated the patterns of transfer and conflicted results have been found. The attempt of my PhD project was to identify which factors and processes favor interlimb transfer of adaptation and thence may explain the discrepancies found in the literature. The first two experiments aimed at investigated whether paradigmatic or idiosyncratic features would influence the performance in interlimb transfer. The third experiment provided some insights on the processes allowing interlimb transfer by using the dual-rate model of adaptation put forth by Smith et al. (2006). Our results show that inter-individual differences may be a key factor to consider when studying interlimb transfer of adaptation. Also, the study of the different sub-processes of adaptation seems helpful to understand how interlimb transfer works and how it can be related to other behaviors such as the expression of motor memory
Active listening in sound localization : multisensory and motor contributions to perceiving and re-learning the auditory space by Chiara Valzolgher( )

1 edition published in 2021 in English and held by 1 WorldCat member library worldwide

Sound localization is the ability to identify the location of sounds in space. This skill allows to perceive the three dimensions of the auditory environment and contributes to attentional orienting and selection. Human learn over the course of life to localize sounds by relying on auditory cues that derive from the interactions of sound waves with the ears and head. Localizing sounds requires creating correspondences between auditory signals and spatial coordinates. Our cognitive system can update these correspondences according to posture and body movements as well as the multiple acoustic scenarios we encounter in life. The other sensory modalities, especially vision, are essential in this updating process. Studying this ability is fascinating for cognitive sciences because it allows to examine the multisensory nature of the acoustic space perception and it permits the investigation of the learning mechanisms subtending these spatial skills. For some people such correspondences are more difficult to create. For instance, people with deafness who use hearing aids or cochlear implants must reconstruct these correspondences through altered and partial auditory cues. This thesis deals with acoustic space perception and presents a series of original experimental contributions aimed at examining the role of active listening and sound-directed actions in spatial hearing. The first chapter describes the mechanisms underlying sound localization and how they can adapt to altered listening conditions. The central chapters of the thesis present a series of experimental contributions which investigated specific questions about acoustic space perception following an incremental logic. First, I validated the innovative methodology based on virtual reality used in all subsequent experiments of the thesis in people with normal hearing (Chapters 2 and 3). Using this methodology, I tested the ability to locate the sounds in listeners with one ear plugged. Plugging one ear modifies the auditory cues and therefore it constitutes a frequently used model to test adaptation to new auditory cues over time. Second, using this model, I investigated the contribution of multisensory stimulation, feedback and sound-directed actions to the adaptation to altered auditory cues over time (Chapter 4). A further step forward from previous studies was to test the generalization of observed learning effects (Chapter 5). The generalization was first observed in normal hearing with one ear plugged and then in a group people with deafness using bilateral cochlear implants (Chapter 6). In the concluding chapter, the theoretical and applied contributions of the experimental works were discussed. They expand the model of acoustic space relearning already present in the literature (Chapter 7). This thesis demonstrates the crucial role of active listening in acoustic space perception and relearning. The concept of behavioral strategy is presented as a further component to consider when studying the mechanisms underlying relearning. Furthermore, the relevant role of motor interaction with sounds as a promoter of relearning clearly emerges in this thesis. From an applied perspective, this series of studies offer a demonstration of the effectiveness of training based on motor interactions with sound in people with bilateral cochlear implants. Starting from the validation of new methodological approach and by testing specific modulations on the localization of sounds, this thesis dissertation led to the demonstration of the possibility of improving the acoustic perception of people with cochlear implants through a protocol based on sound-oriented actions and active listening, implemented in virtual reality. In this respect, this offers theoretical contributions as well as practical indications for building a training approach that could transfer to the clinical world both for the measurement and for the rehabilitation of auditory spatial skills
Représentations motrices et perception de l'espace péripersonnel by Jérémy Bourgeois( )

1 edition published in 2012 in French and held by 1 WorldCat member library worldwide

In this thesis, we assessed the tight relations between motor and sensory processes used to determine the areas of space in which a direct action is possible. We thus focused on the eprception of the reachability of an object, i.e. on the cerebral processes which allow to decide if an object could be reached or not by moving the arm. To do so, we made the hypothesis that theses judgments require to take into account functional motor and body knowledge, in addition to the visual information extracted from the environment. More specifically, we proposed that these judgments rely on a prediction of the consequences of a potential motor act toward the object, thus on the feasibility of the action at a given moment. Our studies discarded the hypothesis of the role of the effort associated to actions on the perception of reachable space. However, the critical role of predicting the sensorimotor consequences of an action has been showed, by demonstrating the strong relation between on the one hand the correspondence between visual distance and movement amplitude, and on the other hand the distance at which the reachability limit is perceived. Sensorimotor anticipation processes have also been showed in spatial perception involving dynamical targets, showing the spatio-temporal aspect of the involved mechanisms. Finally, our last study showed the influence of body representations and of their plasticity on the perception of peripersonal space, highlighting the implication of the body in action in perceptual judgments
Body schema plasticity after tool-use by Lucilla Cardinali( )

1 edition published in 2011 in English and held by 1 WorldCat member library worldwide

Nous avons tous un corps, et seulement un corps. Grâce à lui, nous nous déplaçons dans l'espace, nous interagissons avec le monde extérieur et les autres individus qui l'habitent, nous percevons, bref, nous vivons. Il s'agit d'un objet unique et essentiel. Cependant, bien que nous ayons un seul corps, il en existe dans le cerveau plusieurs représentations. Peu d'accord existe en littérature sur le nombre de représentation, mais tout le monde concorde sur le fait qu'il en existe plus qu'une. Les modèles de la représentation corporelle sont basés sur une notion de séparation des fonctions, selon laquelle activités différentes requièrent différentes représentations. Au cours de ma thèse j'ai étudié une de ces représentations dont la fonction principale est de fournir une connaissance du corps utile à l'action. Cette représentation est nommée Schéma Corporel. En particulier, en utilisant une technique comportementale puissante telle que la cinématique, j'ai pu montrer, pour la première fois, que le Schéma Corporel est une représentation extrêmement plastique, capable d'intégrer des outils lorsqu'ils sont utilisés pour effectuer une action. Ensuite, j'ai pu décrire cette propriété plastique du Schéma Corporel en montrant quelles informations sensorielles sont nécessaires et quels aspects des outils sont intégrés dans la représentation du corps. Les résultats de mes études expérimentales, ainsi que mon travail de synthèse de la littérature, m'ont permis d'élaborer une définition opérative du Schéma Corporel et de sa plasticité
Peripersonal space : a multisensory interface for body-objects interactions by Claudio Brozzoli( )

1 edition published in 2009 in English and held by 1 WorldCat member library worldwide

Notre habilité à interagir avec les objets du monde nécessite l'intégration d'informations provenant de différents canaux sensoriels, dans le cadre de la construction d'une représentation de l'espace en particulier des informations visuelles et tactiles. L'espace péri personnel et l'intégration visuo-tactile ont été l'objet d'importantes recherche récemment. Des études neuro physiologiques chez le primate non-humain ont montré l'existence de neurones bi modaux activés à la fois par des stimulations tactiles et par des stimulations visuelles si ces dernières étaient présentées près d'une partie du corps (par exemple la main). Il a été proposé que ces neurones bi-modaux constituent le substrat neuronal de la représentation de l'espace péri personnel. Les études neuropsychologiques menées chez des patients présentant une extinction cross-modale consécutive à une lésion pariétale droite ont permis de suggérer l'existence du même type de représentation de l'espace péri personnel chez l'homme. Les données issues des études en neuro imagerie fonctionnelle sont venues par la suite conforter cette idée. Plus récemment, à travers l'utilisation d'outils, des données acquises chez le primate humain et non humain ont révélé les propriétés dynamiques de cette représentation spatiale. Selon notre hypothèse la représentation de l'espace péri personnel est une interface présidant aux interactions du corps avec les objets du monde externe. Nous avons donc évalué le rôle et l'état de l'espace péri personnel lors de l'exécution de mouvements volontaires vers des objets (comme une simple saisie) et lors de mouvements involontaires d'évitement. Lors d'une première série d'expériences nous avons étudié les coordonnées spatiales du codage des objets qui soudainement se rapprochent du corps grâce à la mesure des potentiels évoqués moteurs. Cette étude a révélé que l'espace péri personnel joue un rôle dans la représentation des objets approchant le corps et dans la sélection des mouvements appropriés en réponse. Lors d'une seconde série d'expériences nous avons utilisé un paradigme d'interférence visuo-tactile couplé à l'enregistrement cinématique des mouvements de saisie afin d'examiner la représentation de l'espace péri personnel lors de 1 l'exécution d'actions volontaires. Cette approche novatrice nous a permis de mettre en évidence que l'action volontaire induit un recodage en ligne de l'interaction visuo-tactile dans l'espace de préhension. Ce recodage de l'action s'effectue en coordonnées centrées sur la partie du corps qui exécute l'action. En conclusion nos études expérimentales démontrent que l'espace péri personnel est une interface multi sensorielle qui a été sélectionnée à travers l'évolution non seulement pour la gestion des mouvements d'évitement et de défense mais également pour l'exécution d'actions volontaires
Peripersonal Space : hand-centred coding in perceptual and learning processes by Alessandro Zanini( )

1 edition published in 2021 in English and held by 1 WorldCat member library worldwide

Quarante ans exacts se sont écoulés depuis l'apparition du terme « espace péripersonnel » (EPP), cette région de l'espace dans laquelle notre vie quotidienne prend place, dans laquelle nous pouvons interagir avec les objets et les personnes qui nous entourent. Les premières études de la littérature électrophysiologique de cette représentation spatiale ont observé dans des régions spécifiques du cerveau des macaques l'existence de neurones multisensoriels capables de coder des stimuli tactiles, visuels et/ou auditifs en fonction de leur distance des parties spécifiques du corps. Ces neurones bi- ou trimodaux présentent en effet des champs récepteurs tactiles centrés sur une partie précise du corps, comme le visage ou la main, et des champs récepteurs visuels et/ou auditifs se superposant spatialement aux premiers. De cette façon, les mêmes neurones sont capables de répondre à des stimulations tactiles, visuelles et auditives délivrées sur ou à proximité d'une partie spécifique du corps. De plus, ces champs récepteurs multisensoriels sont « ancrés » les uns aux autres : le mouvement de la main du singe impliquait une mise à jour non seulement des champs récepteurs tactiles, mais aussi des champs visuels. Ce référentiel centré sur les parties du corps du codage des stimuli multisensoriels au sein de l'EPP nous permet de garder les informations relatives à la position des différentes parties du corps et des objets environnants toujours à jour, dans le but de planifier et de mettre en œuvre des actions efficaces. Des études neurophysiologiques et comportementales sur des patients souffrant d'extinction et sur des patients héminégligeant suite à des lésions cérébrales de l'hémisphère droit ont permis de mettre en évidence, même chez l'homme, l'existence et la modularité du PPS. Des études ultérieures en neuro-imagerie ont apporté un soutien à cette preuve, mettant en évidence un réseau de régions fronto-pariétales et sous-corticales capables de coder des stimulations multimodales en fonction de leur distance du corps. Les fonctions de cette représentation spatiale sont multiples : médiatiser la relation entre la perception de stimuli externes et l'exécution d'actions ciblées, la surveillance de l'espace autour du corps afin d'identifier les menaces potentielles et mettre en œuvre des réactions défensives, organiser et gérer l'espace entre nous et les autres dans le cas de différents types d'interactions sociales ou nous permettre de nous identifier à notre corps, en lui donnant une localisation dans l'espace. Cependant, malgré le grand intérêt scientifique que cette région de l'espace autour du corps a suscité au cours des quarante dernières années, une comparaison directe de ses fondements neuronaux chez les primates non humains et les humains fait toujours défaut. Pour cette raison, dans le premier chapitre de cette thèse de doctorat, nous rapporterons les résultats d'une étude IRMf, menée sur des participant·e·s humain·e·s et macaques, qui a identifié les patterns de réponse neuronale à des stimulations proches ou éloignées de différentes parties du corps, tout en essayant de minimiser les différences entre les protocoles expérimentaux utilisés chez les deux espèces. Pour la première fois le PPS est investigué chez deux espèces différentes mais avec le même protocole expérimental, mettant en évidence des similitudes et des différences entre le circuit PPS humain et simien, mais aussi entre les patterns de réponse associés à la stimulation de différents secteurs corporels. À partir du deuxième chapitre, nous concentrerons plutôt notre intérêt sur la représentation de l'EPP chez l'être humain, pour essayer de faire la lumière sur un problème de définition qui a confondu la représentation EPP avec l'espace atteignable (EA). Cette dernière, considérée comme l'espace autour du corps que l'on peut atteindre en étendant le bras, a souvent été utilisée au fil du temps comme synonyme de la représentation de l'EPP, conduisant à .. [etc]
The action of prism adaptation on intact visuospatial cognition : when time matters to space by Selene Schintu( )

1 edition published in 2014 in English and held by 1 WorldCat member library worldwide

We are functionally and structurally asymmetric. The perfect symmetry we subjectively experience through vision of the space around us is, to some extent, an illusion. Visuospatial cognition, as indexed by performance on line bisection tasks, is generally biased leftward in healthy individuals and pathologically rightward after right brain damage causing unilateral spatial neglect (USN). These biases can be modulated and prism adaptation (PA) is capable of both alleviating USN symptoms and inducing a rightward shift (the so-called “neglect-like behavior”) in healthy individuals. How this type of sensorimotor adaptation modulates spatial cognition is still debated. The goal of this thesis was to use both behavioral and physiological approaches to investigate the underlying mechanisms of PA's effects on visuospatial cognition in healthy individuals. In a first behavioral study we found the presence of a temporal dynamic in PA after-effects. Based on this first finding we tested, over a longer period of time the PA after-effects following both right and leftward PA and unveiled, with the second study, different temporal dynamics depending on PA direction. In a third study we used transcranial magnetic stimulation to investigate the physiology underlying the effective visuospatial modulation induced by PA. The results of this thesis call for a refinement of the current models of PA action on visuospatial cognition
Développement, bases neural et pathologie du Soi corporel by Elisa Zamagni( )

1 edition published in 2012 in Italian and held by 1 WorldCat member library worldwide

The first chapter describes the theoretical framework of self-body recognition and the processing that allow us to distinguish one's own body and face from body and face of someone else. The second chapter will investigate motor cortex excitability during self/other recognition processing in healthy subjects. The results show an increment of motor corticospinal excitability in the right hemisphere following the presentation of self stimuli (hand and phone), at 600 and 900 ms after stimulus presentation, providing evidences about neural substrates and temporal processes underlying self-body recognition. The third chapter will describe the role of the movement in self bodily recognition in healthy subjects and in patients with right brain damage. The evidence show that patients, who did not show the advantage in the implicit recognition of self static body parts, present this advantage in the implicit recognition of self dynamic body parts. The fourth chapter focuses on the development of the bodily self in children with typical development and in children with autism, with respect to the recognition of self/other emotional body postures. First, this study shows that the advantage in bodily self processing is preserved in children with autism. Second, emotional body postures modulated self and others body processing in typically developing children, as well as in children with autism. The fifth chapter deals with the role of hand gestures in self/other bodily recognition processing, showing that the meaning of a gesture modulates the self/other processing. The processing of others' hand is facilitated with meaningful compared to meaningless gestures
Interrelation between the sensorimotor and emotional components of social space : behavioral and psychophysiological evidence by Alice Cartaud( )

1 edition published in 2021 in English and held by 1 WorldCat member library worldwide

The distance individuals maintain between themselves in social context (interpersonal distance) is of paramount importance as it contributes to the quality of the social interaction. Too large interpersonal distance is not conducive to social interaction whereas too short interpersonal distance triggers discomfort and favors (physiological and behavioral) defensive reactions. Interpersonal distance seems thus built on motor/functional representation of visual space, with a prevalent role of near body action space (i.e., the peripersonal space), but seems to depend also on social factors. Therefore, interpersonal distance adjustment may rely on a subtle balance between the need to interact efficiently with others and the need to maintain a margin of safety protecting from potential hazard including others. As a result, interpersonal distance increases with threatening individuals and decreases with attractive ones, which depends on others' emotional state that can be determined from their facial expression. However, valence evaluation of facial expression, irrespective of the emotion, is not absolute and depends also on the emotional context. In this context, the aim of the present thesis was twofold: (1) to qualify the link between interpersonal distance and the physiological response triggered by individuals within the peripersonal space with varying degrees of threat; (2) to quantify the effect of emotional context on interpersonal distance adjustment. Using a virtual reality environment, known to favor immersion and “authentic” physiological and behavioral responses, we highlighted a linear relation between physiological response and interpersonal distance adjustment. Moreover, our data revealed that contrast effect induced by emotional context on valence judgment (shift toward the opposite direction of that of the context) also subtly altered interpersonal distance adjustment. Overall, the present thesis suggests that interpersonal distance adjustment depends both on the representation of peripersonal space and the emotional context. Our data support that interpersonal distance adjustment refers to the need for homeostasis during social interaction in relation with the defensive value of the peripersonal space. This distance maintained with others, necessary to ensure homeostasis, can indeed be quantified from the physiological response triggered by others within the peripersonal space. Beyond providing new insights on the link between peripersonal space representation, emotional processing and interpersonal distances, the present thesis provides a new theoretical framework that could be relevant for clinical investigations, taking into account in particular sensitivity to interoceptive information
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The world at our fingertips : a multidisciplinary exploration of peripersonal space