scholarly journals SyncUp

2021 ◽  
Vol 5 (3) ◽  
pp. 1-25
Author(s):  
Zhongyi Zhou ◽  
Anran Xu ◽  
Koji Yatani
Keyword(s):  
User Evaluation ◽  
Body Parts ◽  
Body Movements ◽  
Temporal Alignment ◽  
Similarity Estimation ◽  
Manual Inspection ◽  
Interactive Visualizations ◽  
Practice Standard ◽  
Potential Use

The beauty of synchronized dancing lies in the synchronization of body movements among multiple dancers. While dancers utilize camera recordings for their practice, standard video interfaces do not efficiently support their activities of identifying segments where they are not well synchronized. This thus fails to close a tight loop of an iterative practice process (i.e., capturing a practice, reviewing the video, and practicing again). We present SyncUp, a system that provides multiple interactive visualizations to support the practice of synchronized dancing and liberate users from manual inspection of recorded practice videos. By analyzing videos uploaded by users, SyncUp quantifies two aspects of synchronization in dancing: pose similarity among multiple dancers and temporal alignment of their movements. The system then highlights which body parts and which portions of the dance routine require further practice to achieve better synchronization. The results of our system evaluations show that our pose similarity estimation and temporal alignment predictions were correlated well with human ratings. Participants in our qualitative user evaluation expressed the benefits and its potential use of SyncUp, confirming that it would enable quick iterative practice.

scholarly journals Noninformative Vision of Body Movements can Enhance Tactile Discrimination

i-Perception ◽  
2022 ◽  
Vol 13 (1) ◽  
pp. 204166952110592
Author(s):  
Yosuke Suzuishi ◽  
Souta Hidaka
Keyword(s):  
Visual Information ◽  
Dynamic Condition ◽  
Discrimination Performance ◽  
Static Condition ◽  
The Body ◽  
Enhancement Effect ◽  
Body Parts ◽  
Body Movements ◽  
Tactile Discrimination ◽  
Noninformative Vision

Vision of the body without task cues enhances tactile discrimination performance. This effect has been investigated only with static visual information, although our body usually moves, and dynamic visual and bodily information provides ownership (SoO) and agency (SoA) sensations to body parts. We investigated whether vision of body movements could enhance tactile discrimination performance. Participants observed white dots without any textural information showing lateral hand movements (dynamic condition) or static hands (static condition). For participants experiencing the dynamic condition first, it induced a lower tactile discrimination threshold, as well as a stronger SoO and SoA, compared to the static condition. For participants observing the static condition first, the magnitudes of the enhancement effect in the dynamic condition were positively correlated between the tactile discrimination and SoO/SoA. The enhancement of the dynamic visual information was not observed when the hand shape was not maintained in the scrambled white dot images. Our results suggest that dynamic visual information without task cues can enhance tactile discrimination performance by feeling SoO and SoA only when it maintains bodily information.

Comparing Violinists’ Body Movements While Standing, Sitting, and in Sitting Orientations to the Right or Left of a Music Stand

2014 ◽  
Vol 29 (2) ◽  
pp. 86-93 ◽  
Author(s):  
Claudia Spahn ◽  
Céline Wasmer ◽  
Franziska Eickhoff ◽  
Manfred Nusseck
Keyword(s):  
Physiological Stress ◽  
Movement Patterns ◽  
The Body ◽  
Upper Body ◽  
Body Parts ◽  
Body Movements ◽  
Weight Distributions ◽  
The Right ◽  
Stress And Health ◽  
3D Motion Capture

OBJECTIVES: For violinists, it is common practice to play while standing or sitting. When playing in an orchestra, generally two persons share one music stand, with one sitting to the right and the other to the left of the stand. The present study investigated specific movement patterns while playing in these different positions. METHODS: Using a posturographic device and 3D motion capture, the body weight distributions and specific body movements of 19 violinists were analyzed. RESULTS: Results showed unbalanced weight distributions while sitting in front of or oriented to the right of the music stand compared to the almost even distributions while standing or oriented to the left of the stand. Analyses of movement patterns showed significant differences between standing and sitting, mainly in the upper body parts with less movability while sitting. While sitting in front of or oriented to the right of the music stand, the right bowing arm showed more restricted movements compared to other positions. CONCLUSION: The playing positions are discussed with regard to possible physiological stress and health risks. The study emphasizes the importance of different playing positions and offers starting points for discussion of postural influences and sensible handling of the instrument in performance and practice for violinists.

scholarly journals Development of body knowledge as measured by arm differentiation in infants: from global to local?

2019 ◽  
Author(s):  
Lisa Jacquey ◽  
Sergiu T. Popescu ◽  
Judith Vergne ◽  
Jacqueline Fagard ◽  
Rana Esseily ◽  
...  
Keyword(s):  
Detection Task ◽  
The Body ◽  
Developmental Trend ◽  
Body Parts ◽  
Body Movements ◽  
Contingency Detection ◽  
Audiovisual Stimulus ◽  
Body Knowledge

The ability to perceive and use the body parts in an organised and differentiated manner is a precursor of body knowledge in infancy. To acquire this ability, the infant’s brain might explore the perceptual consequences of its bodily actions. Undifferentiated body movements would gradually be replaced by more precise actions. Only a very few papers have tested this “global-to-local” hypothesis and none of them have so far been replicated. In this study, we assessed arm differentiation in 4-, 6- and 8-month-old infants using a new contingency detection task in which infants have to detect a contingency between one of their arms’ activity and an audiovisual stimulus on a screen. We found that 4- to 8-month-old infants seem able to differentiate their arms. However, surprisingly, we were not able to show a developmental trend in arm differentiation between 4 and 8 months of age.

scholarly journals Challenges in Identifying and Interpreting Organizational Modules in Morphology

2017 ◽  
Author(s):  
Borja Esteve-Altava
Keyword(s):  
Complete Analysis ◽  
Mathematical Framework ◽  
Body Parts ◽  
Organizational Modularity ◽  
Generative Processes ◽  
Variational Modularity ◽  
Possible Cause ◽  
Potential Use ◽  
New Framework ◽  
Anatomical Network Analysis

AbstractForm is a rich concept that agglutinates information about the proportions and topological arrangement of body parts. Modularity is readily observable in both the variation of proportions (variational modules) and the organization of topology (organizational modules). The study of variational modularity and of organizational modularity faces similar challenges regarding the identification of meaningful modules and the validation of generative processes; however, most studies in morphology focus solely on variational modularity, while organizational modularity is much less understood. A possible cause for this bias is the successful development in the last twenty years of morphometrics, and specially geometric morphometrics, to study patters of variation. This contrasts with the lack of a similar mathematical framework to deal with patterns of organization. Recently, a new mathematical framework has been proposed to study the organization of anatomical parts using tools from Network Theory, so-called anatomical network analysis. This essay explores the potential use of this new framework – and the challenges it faces in identifying and validating biologically meaningful modules in morphological systems –, by providing an example of a complete analysis of modularity of the human skull and upper limb. Finally, we suggest further directions of research that may bridge the gap between variational and organizational modularity studies.

scholarly journals BRAIN DANCE SEBAGAI ALTERNATIF STIMULI UNTUK MENUMBUHKAN RASA PERCAYA DIRI

2020 ◽  
Vol 7 (1) ◽  
Author(s):  
Dyan Indah Purnama Sari ◽  
Muhaimi Mughni Prayogo ◽  
Ayu Ridho Saraswati
Keyword(s):  
Research Method ◽  
The Body ◽  
Washington Dc ◽  
Body Parts ◽  
Body Movements ◽  
Work Process ◽  
Creative Dance ◽  
Self Confidence ◽  
The Subject ◽  
The Brain

Brain Dance was first introduced by Anne Green Gilbert, a creative dance maestro from Washington DC. Brain Dance is an apperception to activate human body parts. Brain Dance acts as a stimulant to connect the performance of the brain, breathing, motoric, and sensory body so that it is ready to move. In the creative dance process, Brain Dance is the first step so that children are ready, not only physically but also psychologically ready. Besides activating the body, Brain Dance also provides a feeling of freedom and happiness and fosters self-confidence. Brain Dance is suitable for all ages, as well as PGSD UST Yogyakarta students as the subject of this study. Students of PGSD’s 7th semester, in particular, are aged between 20-23 years and nearly 90% cannot dance. Never having danced before, and being unable to dance will be the reasons for the inferiority, shame, and insecurity, which will affect the effectiveness of body movements. The research method used is descriptive qualitative, to describe the condition of the data as it is, through the process of observation, interviews, and documentation. Through Brain Dance, this research is expected to foster self-confidence in PGSD UST Yogyakarta students in activating the body in the creative dance work process.

scholarly journals The kinectome: a comprehensive kinematic map of human motion in health and disease

2021 ◽  
Author(s):  
Emahnuel Troisi Lopez ◽  
Pierpaolo Sorrentino ◽  
Marianna Liparoti ◽  
Roberta Minino ◽  
Anna Carotenuto ◽  
...  
Keyword(s):  
Musculoskeletal System ◽  
Human Movement ◽  
Human Motion ◽  
High Variability ◽  
Body Parts ◽  
Healthy Individuals ◽  
Body Movements ◽  
Human Kinematics ◽  
Health And Disease ◽  
Network Approaches

Effective human movement requires the coordinated participation of the whole musculoskeletal system. Here we propose to represent the human body movements as a network (that we named "kinectome"), where nodes are body parts, and edges are defined as the correlations of the accelerations between each pair of body parts during gait. We apply this framework in healthy individuals and patients with Parkinson's disease (PD). The network dynamics in Parkinson's display high variability, as conveyed by the high variance and the modular structure in the patients' kinectomes. Furthermore, our analysis identified a set of anatomical elements that are specifically related to the balance impairment in PD. Furthermore, each participant could be identified basedon its kinectome patterns, akin to a "fingerprint" of movement, confirming that our approach captures relevant features of gait. We hope that applying network approaches to human kinematics yields new insights to characterize human movement.

Music and Motion——How Music-Related Ancillary Body Movements Contribute to the Experience of Music

2009 ◽  
Vol 26 (4) ◽  
pp. 335-353 ◽  
Author(s):  
Manfred Nusseck ◽  
Marcelo M. Wanderley
Keyword(s):  
Relative Motion ◽  
Body Motion ◽  
Whole Body ◽  
Body Parts ◽  
Body Movements ◽  
Musical Performances ◽  
Motion Characteristics

EXPRESSIVE PERFORMER MOVEMENTS IN MUSICAL performances represent implied levels of communication and can contain certain characteristics and meanings of embodied human expressivity. This study investigated the contribution of ancillary body movements on the perception of musical performances. Using kinematic displays of four clarinetists, perceptual experiments were conducted in which participants were asked to rate specific music-related dimensions of the performance and the performer. Additionally, motions of particular body parts, such as movements of the arms and torso, as well as motion amplitudes of the whole body were manipulated in the kinematic display. It was found that manipulations of arm and torso movements have fewer effects on the observers' ratings of the musicians than manipulations concerning the movement of the whole body. The results suggest that the multimodal experience of musicians is less dependent on the players' particular body motion behaviors than it is on the players' overall relative motion characteristics.

scholarly journals Gesture Elicitation Studies for Mid-Air Interaction: A Review

2018 ◽  
Vol 2 (4) ◽  
pp. 65 ◽  
Author(s):  
Panagiotis Vogiatzidakis ◽  
Panayiotis Koutsabasis
Keyword(s):  
Digital Content ◽  
Design Decision ◽  
User Evaluation ◽  
Body Movements ◽  
Elicitation Method ◽  
Appropriateness Criteria ◽  
Research Questions ◽  
Elicitation Procedure ◽  
Elicitation Studies ◽  
Important Design

Mid-air interaction involves touchless manipulations of digital content or remote devices, based on sensor tracking of body movements and gestures. There are no established, universal gesture vocabularies for mid-air interactions with digital content or remote devices based on sensor tracking of body movements and gestures. On the contrary, it is widely acknowledged that the identification of appropriate gestures depends on the context of use, thus the identification of mid-air gestures is an important design decision. The method of gesture elicitation is increasingly applied by designers to help them identify appropriate gesture sets for mid-air applications. This paper presents a review of elicitation studies in mid-air interaction based on a selected set of 47 papers published within 2011–2018. It reports on: (1) the application domains of mid-air interactions examined; (2) the level of technological maturity of systems at hand; (3) the gesture elicitation procedure and its variations; (4) the appropriateness criteria for a gesture; (5) participants number and profile; (6) user evaluation methods (of the gesture vocabulary); (7) data analysis and related metrics. This paper confirms that the elicitation method has been applied extensively but with variability and some ambiguity and discusses under-explored research questions and potential improvements of related research.

scholarly journals Search in Dynamic Scenes: Cueing by Body Parts Leads to Transient Covet Attention and Microsaccade Bias while Whole Silhouettes to Sustained

2021 ◽  
Author(s):  
Nicole X Han ◽  
Miguel P. Eckstein
Keyword(s):  
Social Interactions ◽  
Head Movements ◽  
Covert Attention ◽  
Target Person ◽  
Cognitive State ◽  
Body Parts ◽  
Gaze Behavior ◽  
Dynamic Scenes ◽  
Body Movements ◽  
Static Head

Gaze direction is an evolutionarily important mechanism in daily social interactions. It reflects a person’s internal cognitive state, spatial locus of interest, and predicts future actions. Studies have used static head images presented foveally and simple synthetic tasks to find that gaze orients attention facilitates target detection at the cued location in a sustained manner. Little is known about how people’s natural gaze behavior, including eyes, head, and body movements, jointly orient covert attention, microsaccades, and facilitate performance in more ecological dynamic scenes. Participants completed a target person detection task with videos of real scenes. The videos showed people looking toward (valid cue) or away from a target (invalid cue) location. We digitally manipulated the individuals in the videos directing gaze to create three conditions: intact (head+body movements), floating heads (only head movements), and headless bodies (only body movements). We assessed their impact on participants’ behavioral performance and microsaccades during the task. We show that, in isolation, an individual’s head or body orienting toward the target-person direction led to facilitation in detection that is transient in time (200 ms). In contrast, only whole silhouettes led to sustained facilitation (500 ms). Furthermore, observers executed microsaccades more frequently towards the cued direction for valid trials, but this bias was sustained in time only when full silhouettes were present. Together, the results differ from previous findings with foveally presented static heads. In more real-world scenarios and tasks, sustained attention requires the presence of the whole silhouettes of the individuals dynamically directing their gaze.

scholarly journals Search in Dynamic Scenes: Cueing by Body Parts Leads to Transient Covert Attention and Microsaccade Bias while Whole Silhouettes to Sustained

2021 ◽  
Author(s):  
Nicole X Han ◽  
Miguel P. Eckstein
Keyword(s):  
Social Interactions ◽  
Head Movements ◽  
Covert Attention ◽  
Target Person ◽  
Cognitive State ◽  
Body Parts ◽  
Gaze Behavior ◽  
Dynamic Scenes ◽  
Body Movements ◽  
Static Head

Gaze direction is an evolutionarily important mechanism in daily social interactions. It reflects a person’s internal cognitive state, spatial locus of interest, and predicts future actions. Studies have used static head images presented foveally and simple synthetic tasks to find that gaze orients attention facilitates target detection at the cued location in a sustained manner. Little is known about how people’s natural gaze behavior, including eyes, head, and body movements, jointly orient covert attention, microsaccades, and facilitate performance in more ecological dynamic scenes. Participants completed a target person detection task with videos of real scenes. The videos showed people looking toward (valid cue) or away from a target (invalid cue) location. We digitally manipulated the individuals in the videos directing gaze to create three conditions: intact (head+body movements), floating heads (only head movements), and headless bodies (only body movements). We assessed their impact on participants’ behavioral performance and microsaccades during the task. We show that, in isolation, an individual’s head or body orienting toward the target-person direction led to facilitation in detection that is transient in time (200 ms). In contrast, only whole silhouettes led to sustained facilitation (500 ms). Furthermore, observers executed microsaccades more frequently towards the cued direction for valid trials, but this bias was sustained in time only when full silhouettes were present. Together, the results differ from previous findings with foveally presented static heads. In more real-world scenarios and tasks, sustained attention requires the presence of the whole silhouettes of the individuals dynamically directing their gaze.

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