Is the Prosthetic Homologue Necessary for Embodiment?

Dornfeld, Chelsea; Swanston, Michelle; Cassella, Joseph; Beasley, Casey; Green, Jacob; Moshayev, Yonatan; Wininger, Michael

doi:10.3389/fnbot.2016.00021

Cited by 5 publications

(4 citation statements)

References 46 publications

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“…[ 29 ] Experience of inclusion in the body schema Mixed (Phenomenology and Body representations) Embodiment is the process by which patients with limb loss come to accept their peripheral device as a natural extension of self. [ 30 ] Experience of the artificial limb as part of the self Phenomenology At the implicit level of body representations, an object is said to be embodied if some of its properties—or all of them—are processed in the same way as the properties of biological body parts. [ 31 ] Exploitation of neural resources normally devoted to representation of body parts Body representation Embodiment can also be associated with a large range of subjective explicit feelings, including feelings of bodily ownership, feelings of bodily control, of bodily integrity, affective feelings, and so forth.…”

Section: Resultsmentioning

confidence: 99%

Prosthetic embodiment: systematic review on definitions, measures, and experimental paradigms

Zbinden

Lendaro

Ortiz-Catalán

2022

J NeuroEngineering Rehabil

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The term embodiment has become omnipresent within prosthetics research and is often used as a metric of the progress made in prosthetic technologies, as well as a hallmark for user acceptance. However, despite the frequent use of the term, the concept of prosthetic embodiment is often left undefined or described incongruently, sometimes even within the same article. This terminological ambiguity complicates the comparison of studies using embodiment as a metric of success, which in turn hinders the advancement of prosthetics research. To resolve these terminological ambiguities, we systematically reviewed the used definitions of embodiment in the prosthetics literature. We performed a thematic analysis of the definitions and found that embodiment is often conceptualized in either of two frameworks based on body representations or experimental phenomenology. We concluded that treating prosthetic embodiment within an experimental phenomenological framework as the combination of ownership and agency allows for embodiment to be a quantifiable metric for use in translational research. To provide a common reference and guidance on how to best assess ownership and agency, we conducted a second systematic review, analyzing experiments and measures involving ownership and agency. Together, we highlight a pragmatic definition of prosthetic embodiment as the combination of ownership and agency, and in an accompanying article, we provide a perspective on a multi-dimensional framework for prosthetic embodiment. Here, we concluded by providing recommendations on metrics that allow for outcome comparisons between studies, thereby creating a common reference for further discussions within prosthetics research.

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Section: Resultsmentioning

confidence: 99%

Prosthetic embodiment: systematic review on definitions, measures, and experimental paradigms

Zbinden

Lendaro

Ortiz-Catalán

2022

J NeuroEngineering Rehabil

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“…Most existing interfaces are either from the nerve or the cortex (Tabot et al, 2015 ). The restoration of somatosensation, either from cortical stimulation or peripheral-nerve stimulation, is required for effective bidirectional communication and a sense of feeling or embodiment (Dornfeld et al, 2016 ) for the patient. The essential need for touch in everyday life has led several research groups to develop different techniques for its artificial restoration.…”

Section: Invasive Methods Of Sensory Feedbackmentioning

confidence: 99%

Selectivity and Longevity of Peripheral-Nerve and Machine Interfaces: A Review

2017

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For those individuals with upper-extremity amputation, a daily normal living activity is no longer possible or it requires additional effort and time. With the aim of restoring their sensory and motor functions, theoretical and technological investigations have been carried out in the field of neuroprosthetic systems. For transmission of sensory feedback, several interfacing modalities including indirect (non-invasive), direct-to-peripheral-nerve (invasive), and cortical stimulation have been applied. Peripheral nerve interfaces demonstrate an edge over the cortical interfaces due to the sensitivity in attaining cortical brain signals. The peripheral nerve interfaces are highly dependent on interface designs and are required to be biocompatible with the nerves to achieve prolonged stability and longevity. Another criterion is the selection of nerves that allows minimal invasiveness and damages as well as high selectivity for a large number of nerve fascicles. In this paper, we review the nerve-machine interface modalities noted above with more focus on peripheral nerve interfaces, which are responsible for provision of sensory feedback. The invasive interfaces for recording and stimulation of electro-neurographic signals include intra-fascicular, regenerative-type interfaces that provide multiple contact channels to a group of axons inside the nerve and the extra-neural-cuff-type interfaces that enable interaction with many axons around the periphery of the nerve. Section Current Prosthetic Technology summarizes the advancements made to date in the field of neuroprosthetics toward the achievement of a bidirectional nerve-machine interface with more focus on sensory feedback. In the Discussion section, the authors propose a hybrid interface technique for achieving better selectivity and long-term stability using the available nerve interfacing techniques.

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“…Understanding such processes is required for designing appropriate strategies to enhance the embodiment of an artificial limb. First of all, it must be said that daily prosthetic practice, individual characteristics (like the cause of limb absence), and multisensory feedback congruency play fundamental roles in this process, which does not necessarily require cosmetic improvements or specific control patterns (body-powered or myoelectric) (Dornfeld et al 2016, Engdahl et al 2020b, Moore et al 2021, Zbinden et al 2021. Embodiment training strategies can also be explored in virtual and augmented settings (Barresi et al 2021), even if the generalization of their effects to actual prostheses must be investigated.…”

Section: Toward User-centered Upper Limb Prostheticsmentioning

confidence: 99%

Active upper limb prostheses: a review on current state and upcoming breakthroughs

et al. 2023

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The journey of a prosthetic user is characterized by the opportunities and the limitations of a device that should enable activities of daily living (ADL). In particular, experiencing a bionic hand as a functional (and, advantageously, embodied) limb constitutes the premise for promoting the practice in using the device, mitigating the risk of its abandonment. In order to achieve such a result, different aspects need to be considered for making the artificial limb an effective solution to accomplish activities of daily living. According to such a perspective, this review aims at presenting the current issues and at envisioning the upcoming breakthroughs in upper limb prosthetic devices. We first define the sources of input and feedback involved in the system control (at user-level and device-level), alongside the related algorithms used in signal analysis. Moreover, the paper focuses on the user-centered design challenges and strategies that guide the implementation of novel solutions in this area in terms of technology acceptance, embodiment, and, in general, human-machine integration based on co-adaptive processes. We here provide the readers (belonging to the target communities of researchers, designers, developers, clinicians, industrial stakeholders, and end-users) with an overview of the state-of-the-art and the potential innovations in bionic hands features, hopefully promoting interdisciplinary efforts for solving current issues of ULPs. The integration of different perspectives should be the premise to a transdisciplinary intertwining leading to a truly holistic comprehension and improvement of the bionic hands design. Overall, this paper aims to move the boundaries in prosthetic innovation beyond the development of a tool and towards the engineering of human-centered artificial limbs.

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Is the Prosthetic Homologue Necessary for Embodiment?

Cited by 5 publications

References 46 publications

Prosthetic embodiment: systematic review on definitions, measures, and experimental paradigms

Prosthetic embodiment: systematic review on definitions, measures, and experimental paradigms

Selectivity and Longevity of Peripheral-Nerve and Machine Interfaces: A Review

Active upper limb prostheses: a review on current state and upcoming breakthroughs

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