Virtual body anthropomorphism increases drift in self‐location: Further support for the humanoid shape rule

Author(s):  
Ege Tekgün ◽  
Muhtar Ç. Uludağlı ◽  
Hüseyin Akcan ◽  
Burak Erdeniz
Keyword(s):  
2012 ◽  
Vol 15 (8) ◽  
pp. 435-440 ◽  
Author(s):  
Daniela Villani ◽  
Elena Gatti ◽  
Emanuela Confalonieri ◽  
Giuseppe Riva

2021 ◽  
Vol 10 (1) ◽  
pp. 139
Author(s):  
Marta Matamala-Gomez ◽  
Antonella Maselli ◽  
Clelia Malighetti ◽  
Olivia Realdon ◽  
Fabrizia Mantovani ◽  
...  

Over the last 20 years, virtual reality (VR) has been widely used to promote mental health in populations presenting different clinical conditions. Mental health does not refer only to the absence of psychiatric disorders but to the absence of a wide range of clinical conditions that influence people’s general and social well-being such as chronic pain, neurological disorders that lead to motor o perceptual impairments, psychological disorders that alter behaviour and social cognition, or physical conditions like eating disorders or present in amputees. It is known that an accurate perception of oneself and of the surrounding environment are both key elements to enjoy mental health and well-being, and that both can be distorted in patients suffering from the clinical conditions mentioned above. In the past few years, multiple studies have shown the effectiveness of VR to modulate such perceptual distortions of oneself and of the surrounding environment through virtual body ownership illusions. This narrative review aims to review clinical studies that have explored the manipulation of embodied virtual bodies in VR for improving mental health, and to discuss the current state of the art and the challenges for future research in the context of clinical care.


Author(s):  
Giuseppe Riva ◽  
Antonios Dakanalis ◽  
Fabrizia Mantovani

2021 ◽  
Vol 2 ◽  
Author(s):  
Collin Turbyne ◽  
Abe Goedhart ◽  
Pelle de Koning ◽  
Frederike Schirmbeck ◽  
Damiaan Denys

Background: Body image (BI) disturbances have been identified in both clinical and non-clinical populations. Virtual reality (VR) has recently been used as a tool for modulating BI disturbances through the use of eliciting a full body illusion (FBI). This meta-analysis is the first to collate evidence on the effectiveness of an FBI to reduce BI disturbances in both clinical and non-clinical populations.Methods: We performed a literature search in MEDLINE (PubMed), EMBASE, PsychINFO, and Web of Science with the keywords and synonyms for “virtual reality” and “body image” to identify published studies until September 2020. We included studies that (1) created an FBI with a modified body shape or size and (2) reported BI disturbance outcomes both before and directly after the FBI. FBI was defined as a head-mounted display (HMD)-based simulation of embodying a virtual body from an egocentric perspective in an immersive 3D computer-generated environment.Results: Of the 398 identified unique studies, 13 were included after reading full-texts. Four of these studies were eligible for a meta-analysis on BI distortion inducing a small virtual body FBI in healthy females. Significant post-intervention results were found for estimations of shoulder width, hip width, and abdomen width, with the largest reductions in size being the estimation of shoulder circumference (SMD = −1.3; 95% CI: −2.2 to −0.4; p = 0.004) and hip circumference (SMD = −1.0; 95% CI: −1.6 to −0.4; p = 0.004). Mixed results were found in non-aggregated studies from large virtual body FBIs in terms of both estimated body size and BI dissatisfaction and in small virtual body FBI in terms of BI dissatisfaction.Conclusions: The findings presented in this paper suggest that the participants' BIs were able to conform to both an increased as well as a reduced virtual body size. However, because of the paucity of research in this field, the extent of the clinical utility of FBIs still remains unclear. In light of these limitations, we provide implications for future research about the clinical utility of FBIs for modulating BI-related outcomes.


2021 ◽  
Vol 33 (5) ◽  
pp. 1004-1012
Author(s):  
Yasuyuki Inoue ◽  
◽  
Michiteru Kitazaki

In virtual reality (VR), a virtual mirror is often used to display the VR avatar to the user for enhancing the embodiment. The reflected image of the synchronization of the virtual body with the user’s movement is expected to be recognized as the user’s own reflection. In addition to the visuo-motor synchrony, there are some mirror reflection factors that are probably involved in avatar embodiment. This paper reviews literature on the psychological studies that involve mirror-specific self-identification and embodied perception to clarify how the reflected image of the virtual body is embodied. Furthermore, subjective misconceptions about mirror reflections reported in naïve optics have also been reviewed to discuss the potential of virtual mirror displays to modulate avatar embodiment.


2009 ◽  
Vol 29 (2) ◽  
pp. 39-48 ◽  
Author(s):  
J. Sinclair ◽  
P. Hingston ◽  
M. Masek ◽  
K. Nosaka

2015 ◽  
Author(s):  
Martin Dobricki ◽  
Betty J. Mohler
Keyword(s):  

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