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https://www.readbyqxmd.com/read/29040934/calibration-to-tool-use-during-visually-guided-reaching
#1
Brian Day, Elham Ebrahimi, Leah S Hartman, Christopher C Pagano, Sabarish V Babu
In studying human perception and performance researchers must understand how the body schema is modified to accurately represent one's capabilities when tools are used, as humans use tools that alter their capabilities frequently. The present work tested the idea that calibration is responsible for modifying an embodied action schema during tool use. We investigated calibration in the context of manual activity in near space through a behavioral measure. Participants made blind reaches to various visual distances in pre- and post-test phases using a short tool that did not extend their reach...
October 14, 2017: Acta Psychologica
https://www.readbyqxmd.com/read/29018636/detecting-dementia-through-interactive-computer-avatars
#2
Hiroki Tanaka, Hiroyoshi Adachi, Norimichi Ukita, Manabu Ikeda, Hiroaki Kazui, Takashi Kudo, Satoshi Nakamura
This paper proposes a new approach to automatically detect dementia. Even though some works have detected dementia from speech and language attributes, most have applied detection using picture descriptions, narratives, and cognitive tasks. In this paper, we propose a new computer avatar with spoken dialog functionalities that produces spoken queries based on the mini-mental state examination, the Wechsler memory scale-revised, and other related neuropsychological questions. We recorded the interactive data of spoken dialogues from 29 participants (14 dementia and 15 healthy controls) and extracted various audiovisual features...
2017: IEEE Journal of Translational Engineering in Health and Medicine
https://www.readbyqxmd.com/read/28994823/a-multilayer-network-dataset-of-interaction-and-influence-spreading-in-a-virtual-world
#3
Jarosław Jankowski, Radosław Michalski, Piotr Bródka
Presented data contains the record of five spreading campaigns that occurred in a virtual world platform. Users distributed avatars between each other during the campaigns. The processes varied in time and range and were either incentivized or not incentivized. Campaign data is accompanied by events. The data can be used to build a multilayer network to place the campaigns in a wider context. To the best of the authors' knowledge, the study is the first publicly available dataset containing a complete real multilayer social network together, along with five complete spreading processes in it...
October 10, 2017: Scientific Data
https://www.readbyqxmd.com/read/28966600/beyond-behavioral-inhibition-a-computer-avatar-task-designed-to-assess-behavioral-inhibition-extends-to-harm-avoidance
#4
Michael Todd Allen, Molly M Jameson, Catherine E Myers
Personality factors such as behavioral inhibition (BI), a temperamental tendency for avoidance in the face of unfamiliar situations, have been identified as risk factors for anxiety disorders. Personality factors are generally identified through self-report inventories. However, this tendency to avoid may affect the accuracy of these self-report inventories. Previously, a computer based task was developed in which the participant guides an on-screen "avatar" through a series of onscreen events; performance on the task could accurately predict participants' BI, measured by a standard paper and pencil questionnaire (Adult Measure of Behavioral Inhibition, or AMBI)...
2017: Frontiers in Psychology
https://www.readbyqxmd.com/read/28957344/functional-hemispheric-asymmetries-during-the-planning-and-manual-control-of-virtual-avatar-movements
#5
Mareike Floegel, Christian Alexander Kell
Both hemispheres contribute to motor control beyond the innervation of the contralateral alpha motoneurons. The left hemisphere has been associated with higher-order aspects of motor control like sequencing and temporal processing, the right hemisphere with the transformation of visual information to guide movements in space. In the visuomotor context, empirical evidence regarding the latter has been limited though the right hemisphere's specialization for visuospatial processing is well-documented in perceptual tasks...
2017: PloS One
https://www.readbyqxmd.com/read/28955259/a-combination-of-outcome-and-process-feedback-enhances-performance-in-simulations-of-child-sexual-abuse-interviews-using-avatars
#6
Francesco Pompedda, Jan Antfolk, Angelo Zappalà, Pekka Santtila
Simulated interviews in alleged child sexual abuse (CSA) cases with computer-generated avatars paired with feedback improve interview quality. In the current study, we aimed to understand better the effect of different types of feedback in this context. Feedback was divided into feedback regarding conclusions about what happened to the avatar (outcome feedback) and feedback regarding the appropriateness of question-types used by the interviewer (process feedback). Forty-eight participants each interviewed four different avatars...
2017: Frontiers in Psychology
https://www.readbyqxmd.com/read/28947782/microchamber-cultures-of-bladder-cancer-a-platform-for-characterizing-drug-responsiveness-and-resistance-in-pdx-and-primary-cancer-cells
#7
Pantea Gheibi, Shuxiong Zeng, Kyung Jin Son, Tam Vu, Ai-Hong Ma, Marc A Dall'Era, Stanley Alexander Yap, Ralph W de Vere White, Chong-Xian Pan, Alexander Revzin
Precision cancer medicine seeks to target the underlying genetic alterations of cancer; however, it has been challenging to use genetic profiles of individual patients in identifying the most appropriate anti-cancer drugs. This spurred the development of patient avatars; for example, patient-derived xenografts (PDXs) established in mice and used for drug exposure studies. However, PDXs are associated with high cost, long development time and low efficiency of engraftment. Herein we explored the use of microfluidic devices or microchambers as simple and low-cost means of maintaining bladder cancer cells over extended periods of times in order to study patterns of drug responsiveness and resistance...
September 25, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28936191/mentalizing-another-s-visual-world-a-novel-exploration-via-motion-aftereffect
#8
Xuefei Yuan, Nanbo Wang, Haiyan Geng, Shen Zhang
Past research on level 2 visual perspective-taking (VPT) has mostly focused on understanding the mental rotation involved when one adopts others' perspective; the mechanisms underlying how the visual world of others is mentally represented remain unclear. In three studies, we addressed this question by adopting a novel VPT task with motion stimuli and exploring the aftereffect on motion discrimination from the self-perspective. Overall the results showed a facilitation aftereffect when participants were instructed to take the avatar's perspective...
2017: Frontiers in Psychology
https://www.readbyqxmd.com/read/28918308/appropriateness-of-different-pedagogical-approaches-to-road-safety-education-for-children-with-developmental-coordination-disorder-dcd
#9
C Purcell, A R Romijn
BACKGROUND: In 2016, 29% of pedestrians killed or seriously injured on the roads in Great Britain were under 15 years of age. Children with Developmental Coordination Disorder (DCD), a chronic disorder affecting the acquisition and execution of motor skills, may be more vulnerable at the roadside than typically developing (TD) children. Current methods used to teach road safety are typically knowledge-based and do not necessarily improve behaviour in real traffic situations. Virtual reality road crossing tasks may be a viable alternative...
September 14, 2017: Research in Developmental Disabilities
https://www.readbyqxmd.com/read/28881750/new-in-vivo-avatars-of-diffuse-intrinsic-pontine-gliomas-dipg-from-stereotactic-biopsies-performed-at-diagnosis
#10
Alexandre Plessier, Ludivine Le Dret, Pascale Varlet, Kévin Beccaria, Joëlle Lacombe, Sébastien Mériaux, Françoise Geffroy, Laurence Fiette, Patricia Flamant, Fabrice Chrétien, Thomas Blauwblomme, Stéphanie Puget, Jacques Grill, Marie-Anne Debily, David Castel
Diffuse Instrinsic Pontine Glioma is the most aggressive form of High Grade Gliomas in children. The lack of biological material and the absence of relevant models have hampered the development of new therapeutics. Their extensive infiltration of the brainstem renders any surgical resection impossible and until recently biopsies were considered not informative enough and therefore not recommended. Thus, most models were derived from autopsy material. We aimed to develop relevant in vivo DIPG models that mimic this specific disease and its molecular diversity from tumor material obtained at diagnosis...
August 8, 2017: Oncotarget
https://www.readbyqxmd.com/read/28858862/pancreas-cancer-precision-treatment-using-avatar-mice-from-a-bioinformatics-perspective
#11
Javier Perales-Patón, Elena Piñeiro-Yañez, Héctor Tejero, Pedro P López-Casas, Manuel Hidalgo, Gonzalo Gómez-López, Fátima Al-Shahrour
Pancreatic ductal adenocarcinoma (PDAC) is a leading cause of cancer-related death among solid malignancies. Unfortunately, PDAC lethality has not substantially decreased over the past 20 years. This aggressiveness is related to the genomic complexity and heterogeneity of PDAC, but also to the absence of an effective screening for the detection of early-stage tumors and a lack of efficient therapeutic options. Therefore, there is an urgent need to improve the arsenal of anti-PDAC drugs for an effective treatment of these patients...
2017: Public Health Genomics
https://www.readbyqxmd.com/read/28855723/interferences-between-breathing-experimental-dyspnoea-and-bodily-self-consciousness
#12
Etienne Allard, Elisa Canzoneri, Dan Adler, Capucine Morélot-Panzini, Javier Bello-Ruiz, Bruno Herbelin, Olaf Blanke, Thomas Similowski
Dyspnoea, a subjective experience of breathing discomfort, is a most distressing symptom. It implicates complex cortical networks that partially overlap with those underlying bodily self-consciousness, the experience that the body is one's own within a given location (self-identification and self-location, respectively). Breathing as an interoceptive signal contributes to bodily self-consciousness: we predicted that inducing experimental dyspnoea would modify or disrupt this contribution. We also predicted that manipulating bodily self-consciousness with respiratory-visual stimulation would possibly attenuate dyspnoea...
August 30, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28846994/vital-exhaustion-burnout-and-other-avatars-of-depression
#13
Renzo Bianchi, Irvin Sam Schonfeld, Eric Laurent
No abstract text is available yet for this article.
September 2017: Psychosomatic Medicine
https://www.readbyqxmd.com/read/28829297/performance-based-animation-using-constraints-for-virtual-object-manipulation
#14
Jaepyung Hwang, Kwanguk Kim, Il Hong Suh, Taesoo Kwon
Optical motion-capture systems can be used to animate characters in real time based on human demonstrations. However, most approaches do not consider the detailed finger movements necessary for object manipulation. The proposed online motion-capture framework encourages natural motions by automatically guiding the avatar's motion toward the desired behavior based on a set of captured reference motions for the same behavior. The proposed motion controller imitates the user's finger and body gestures to enable performance-based animation of human avatars that can manipulate virtual objects in real time...
2017: IEEE Computer Graphics and Applications
https://www.readbyqxmd.com/read/28827542/real-time-eeg-based-brain-computer-interface-to-a-virtual-avatar-enhances-cortical-involvement-in-human-treadmill-walking
#15
Trieu Phat Luu, Sho Nakagome, Yongtian He, Jose L Contreras-Vidal
Recent advances in non-invasive brain-computer interface (BCI) technologies have shown the feasibility of neural decoding for both users' gait intent and continuous kinematics. However, the dynamics of cortical involvement in human upright walking with a closed-loop BCI has not been investigated. This study aims to investigate the changes of cortical involvement in human treadmill walking with and without BCI control of a walking avatar. Source localization revealed significant differences in cortical network activity between walking with and without closed-loop BCI control...
August 21, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28806125/changing-avatars-changing-selves-the-influence-of-social-and-contextual-expectations-on-digital-rendition-of-identity
#16
Stefano Triberti, Ilaria Durosini, Filippo Aschieri, Daniela Villani, Giuseppe Riva
Avatar creation is an interesting topic for both video game and social network studies. Research has shown that the creation of avatars is influenced by individual, contextual, and cultural features. Avatars are used to represent aspects of users' personality, but multiple avatars are used in different virtual contexts, as self-presentation strategies may vary according to the different "audiences" to be met online (say: friends, or strangers). Moreover, avatar creation is also influenced by cultural variables, such as gender, as avatars embody stereotypical aspects of being a woman or a man...
August 2017: Cyberpsychology, Behavior and Social Networking
https://www.readbyqxmd.com/read/28796781/embodied-conversational-agents-for-multimodal-automated-social-skills-training-in-people-with-autism-spectrum-disorders
#17
Hiroki Tanaka, Hideki Negoro, Hidemi Iwasaka, Satoshi Nakamura
Social skills training, performed by human trainers, is a well-established method for obtaining appropriate skills in social interaction. Previous work automated the process of social skills training by developing a dialogue system that teaches social communication skills through interaction with a computer avatar. Even though previous work that simulated social skills training only considered acoustic and linguistic information, human social skills trainers take into account visual and other non-verbal features...
2017: PloS One
https://www.readbyqxmd.com/read/28761257/from-hair-in-india-to-hair-india
#18
COMMENT
Ralph M Trüeb
In all cultures, human hair and hairdo have been a powerful metaphor. Tracing back the importance and significance of human hair to the dawn of civilization on the Indian subcontinent, we find that all the Vedic gods are depicted as having uncut hair in mythological stories as well as in legendary pictures. The same is true of the Hindu avatars, and the epic heroes of the Ramayana, and the Mahabharata. Finally, there are a number of hair peculiarities in India pertinent to the creed and religious practices of the Hindu, the Jain, and the Sikh...
January 2017: International Journal of Trichology
https://www.readbyqxmd.com/read/28756434/simulating-human-carer-with-an-avatar-to-improve-medication-adherence
#19
Kerry Y Fang, Heidi Bjering, Athula Ginige
Non-adherence to medication and treatment regimens is considered as a major issue in the healthcare industry as it can lead to negative consequences. Various strategies have been applied to improve adherence, however many of these strategies lack the interaction and personalisation-aspect which has been shown to be crucial to the patients. This paper discusses the importance of personalised interaction in improving patients' medication adherence, and the characteristics needed in an avatar to simulate such human-human interactions...
2017: Studies in Health Technology and Informatics
https://www.readbyqxmd.com/read/28745268/assessing-body-image-in-anorexia-nervosa-using-biometric-self-avatars-in-virtual-reality-attitudinal-components-rather-than-visual-body-size-estimation-are-distorted
#20
S C Mölbert, A Thaler, B J Mohler, S Streuber, J Romero, M J Black, S Zipfel, H-O Karnath, K E Giel
BACKGROUND: Body image disturbance (BID) is a core symptom of anorexia nervosa (AN), but as yet distinctive features of BID are unknown. The present study aimed at disentangling perceptual and attitudinal components of BID in AN. METHODS: We investigated n = 24 women with AN and n = 24 controls. Based on a three-dimensional (3D) body scan, we created realistic virtual 3D bodies (avatars) for each participant that were varied through a range of ±20% of the participants' weights...
July 26, 2017: Psychological Medicine
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