scholarly journals Unobtrusive tracking of interpersonal orienting and distance predicts the subjective quality of social interactions

2020 ◽  
Vol 7 (8) ◽  
pp. 191815 ◽  
Author(s):  
Juha M. Lahnakoski ◽  
Paul A.G. Forbes ◽  
Cade McCall ◽  
Leonhard Schilbach
Keyword(s):  
Social Interactions ◽  
Motion Tracking ◽  
Tracking System ◽  
Wearable Sensors ◽  
Measurement Techniques ◽  
Task Demands ◽  
Subjective Quality ◽  
Interpersonal Synchrony ◽  
The Individual

Interpersonal coordination of behaviour is essential for smooth social interactions. Measures of interpersonal behaviour, however, often rely on subjective evaluations, invasive measurement techniques or gross measures of motion. Here, we constructed an unobtrusive motion tracking system that enables detailed analysis of behaviour at the individual and interpersonal levels, which we validated using wearable sensors. We evaluate dyadic measures of joint orienting and distancing, synchrony and gaze behaviours to summarize data collected during natural conversation and joint action tasks. Our results demonstrate that patterns of proxemic behaviours, rather than more widely used measures of interpersonal synchrony, best predicted the subjective quality of the interactions. Increased distance between participants predicted lower enjoyment, while increased joint orienting towards each other during cooperation correlated with increased effort reported by the participants. Importantly, the interpersonal distance was most informative of the quality of interaction when task demands and experimental control were minimal. These results suggest that interpersonal measures of behaviour gathered during minimally constrained social interactions are particularly sensitive for the subjective quality of social interactions and may be useful for interaction-based phenotyping for further studies.

Characterizing Suitability of Wearable Sensors for Movement Analysis Using a Programmed Robotic Motion

2013 ◽  
Author(s):  
Amanda L. Martori ◽  
Stephanie L. Carey ◽  
Redwan Alqasemi ◽  
Daniel Ashley ◽  
Rajiv V. Dubey
Keyword(s):  
Motion Tracking ◽  
Tracking System ◽  
Wearable Sensors ◽  
Robotic Arm ◽  
Joint Angles ◽  
Optical Motion ◽  
Optical Motion Tracking ◽  
Motion Tracking System ◽  
Insight Into

Wearable sensor systems have the potential to offer advancements in the study of motion disorders, particularly outside of a laboratory setting during activities of daily living or on a football field. Advantages like portability and the capability to gather real-world data have resulted in the rapid adoption of these sensors in various studies for gait analysis, balance control evaluation, physical activity recognition and fall prevention. However, before using wearable sensors in long-term acquisition studies, it is necessary to quantify and analyze errors and determine their sources. In this study, the accuracy of joint angles and velocities measured with the wearable inertial measurement unit (IMU) sensors were compared to both measurements from an optical motion-tracking system and from encoders on a robotic arm while it completed various predetermined paths. The robotic arm uses incremental encoders at each joint to measure and calculate its Cartesian motion relative to a reference frame using inverse kinematics. Motion profiles of the robotic arm were tracked using the onboard encoders, an eight-camera Vicon (Oxford, UK) motion-tracking system with passive retro-reflective markers, and four wearable IMUs by APDM (Portland, OR). In order to better isolate various types of contributing errors, linear, planar, and 3-dimensional robot motions were used. Data were collected from the sensors over several hours, which provided insight into time-based effects as well as management of large amounts of data for future long-term tracking applications. In addition, the authors have previously seen acquisition errors with high-speed gaits, thus robotic arm trajectories of varying velocities were used to provide further insight into these rate-based effects. Angular velocity and joint angles were compared for all three systems and used to investigate the hysteresis, drift and time-based effects on the IMUs as well as their accuracy during motion tracking. Effects on IMU performance due to the application of filtering algorithms were not investigated. The results show that the IMUs were able to calculate the joint angles within a clinically acceptable range of the gold standard optical motion-tracking system. The IMUs also provided accurate trajectory recognition and angular velocity measurements relative to the known motion input of the robotic arm. Future work will include the development of algorithms to detect gait abnormalities such as those seen in patients with mild traumatic brain injury (mTBI). To complement human subject testing with gait pathology, controlled introduction of gait deviations into this robotic testing framework will allow for well-characterized unit testing, providing more robust algorithm development.

scholarly journals KEMANG CRE.ACTIVE : WADAH EDUKASI DAN KREATIVITAS DI KEMANG

2020 ◽  
Vol 2 (1) ◽  
pp. 781
Author(s):  
Putri Aprillia ◽  
Nina Carina
Keyword(s):  
Social Interactions ◽  
Public Space ◽  
Image Method ◽  
Third Place ◽  
The Third ◽  
Individual Traits ◽  
Housing Complex ◽  
The Individual ◽  
Leisure Facilities

The routine which is carried out between home and the workplace, school or campus every day could trigger stress which caused by the burden of thoughts and workloads. This could also make the individual traits get higher and reduce social interactions because of their respective activities. Therefore, the third place is present as a neutral public space to be able to accommodate the need for social interaction to exchange ideas, release the burden of thoughts and also emphasize the tightness of activities in schools, campus, workplace, etc without feeling awkward for doing interaction among people who have different backgrounds. These problems will be answered through architectural product as a space for education and creativity which is equipped with playing facilities, gatherings, and also leisure facilities to maintain the quality of individual’s life. Kemang, South Jakarta, is selected as the area for designing a third place because Kemang is close to housing complex, office buildings, and schools. In addition, Kemang is also a trajectory for many people who travel from home to workplace, school or campus and vice versa. The program will raise art and sports as the design theme which will be supported by some supporting programs which are still related to the design theme as the answer of the problems and to strengthen the identity of Kemang. Moreover, art and sports are close to third place. This project will be designed by John Zeisel’s re-image method and will be supported by Erica M. Bartels’s transparency theory by giving priority to the permeable as part of the design concept and also paying attention to the existing factors of authenticity. AbstrakRutinitas yang dilakukan antara rumah dan tempat kerja, sekolah atau kampus hampir setiap hari dapat memicu stres dan penat akibat beban pikiran dan juga beban kerja. Hal ini juga dapat menjadikan sifat individualisme semakin tinggi dan berkurangnya interaksi sosial antar individu dikarenakan kesibukan masing – masing. Oleh karena itu, ruang ketiga hadir sebagai ruang publik yang bersifat netral agar mampu mewadahi dan menjawab kebutuhan akan interaksi sosial untuk bertukar pikiran, melepas beban pikiran dan juga stres akibat padatnya aktivitas di sekolah, kampus, tempat kerja, dan lain-lain tanpa merasa canggung untuk berinteraksi meskipun berbeda latar belakang. Permasalahan ini akan dijawab melalui produk arsitektur berupa penciptaan wadah untuk edukasi dan kreativitas yang dilengkapi dengan sarana bermain, berkumpul, dan juga bersantai guna menjaga kualitas hidup individu. Kawasan Kemang, Jakarta Selatan, dipilih sebagai kawasan untuk perancangan ruang ketiga karena Kemang merupakan kawasan yang dekat dengan perumahan, perkantoran, dan sekolah. Selain itu, Kemang juga menjadi lintasan banyak orang bepergian dari rumah ke tempat kerja, sekolah, atau kampus dan sebaliknya. Program akan mengangkat tema seputar seni dan olahraga yang kemudian akan didukung dengan beberapa program penunjang yang masih berkaitan dengan tema tersebut sebagai bentuk jawaban dari permasalahan dan pengangkatan identitas kawasan Kemang. Selain karena hal tersebut, seni dan olahraga juga memiliki keterkaitan yang cukup erat dengan ruang ketiga. Proyek ini akan dirancangan menggunakan metode re-image oleh John Zeisel yang kemudian akan didukung dengan teori transparency oleh Erica M.Bartels dengan mengutamakan sifat mudah ditembus sebagai bagian dari konsep perancangan dan juga memperhatikan faktor kesejaman yang ada.

scholarly journals Infants prospectively control reaching based on the difficulty of future actions – To what extent can infants’ multiple step actions be explained by Fitts’ law?

2018 ◽  
Author(s):  
Janna M. Gottwald ◽  
Aurora De Bortoli Vizioli ◽  
Marcus Lindskog ◽  
Pär Nyström ◽  
Therese L. Ekberg ◽  
...  
Keyword(s):  
Motor Control ◽  
Motion Tracking ◽  
Tracking System ◽  
Action Planning ◽  
Task Demands ◽  
Fitts Law ◽  
Movement Unit ◽  
In The Beginning ◽  
Motion Tracking System ◽  
Goal Distance

Prospective motor control, a key element of action planning, is the ability to adjust one’s actions with respect to task demands and action goals in an anticipatory manner. The current study investigates whether 14-month-olds are able to prospectively control their reaching actions based on the difficulty of the subsequent action. We used a reach-to-place task, with difficulty of the placing action varied by goal size and goal distance. To target prospective motor control, we determined the kinematics of the prior reaching movements using a motion-tracking system. Peak velocity of the first movement unit of the reach served as indicator for prospective motor control. Both difficulty aspects (goal size and goal distance) affected prior reaching, suggesting that both these aspects of the subsequent action have an impact on the prior action. The smaller the goal size and the longer the distance to the goal, the slower infants were in the beginning of their reach towards the object. Additionally we modeled movement times of both reaching and placing actions using a formulation of Fitts’ law. The model was significant for placement and reaching movement times. These findings suggest that 14-month-olds are able to plan their future actions and prospectively control their related movements with respect to future task difficulties.

scholarly journals An Exploration of the needs of a Cardiac Rehabilitation Population using a Subjective Quality-of-Life Measure

2020 ◽  
Vol 5 (06) ◽  
Author(s):  
Emily Basquille ◽  
Verna McKenna ◽  
Ailish Houlihan ◽  
Kate Molony ◽  
Dr. Veronica McInerney ◽  
...  
Keyword(s):  
Quality Of Life ◽  
Cardiac Rehabilitation ◽  
Medical Profession ◽  
Descriptive Analysis ◽  
Structured Interview ◽  
Subjective Quality ◽  
Subjective Quality Of Life ◽  
Personal View ◽  
The Individual

Context: The aim of this study was to profile a cardiac rehabilitation population in the West of Ireland and establish Subjective Quality of Life (SQoL), using The Schedule for Evaluation of Individual Quality of Life-Direct Weighting (SEIQoL-DW), a validated subjective QoL measure. Bothersome symptoms (SB) and Symptom Interference in SQoL (SBIQoL) were also assessed using a using a modified SEIQoL-DW. Objectives: QoL is a difficult concept to define, therefore the medical profession often premise QoL on health and illness. The focus of this study was to explore the QoL needs of a cardiac population, with a view to informing the development of a newly formed cardiac rehabilitation support group. The SEIQoL-DW was developed to overcome the limitations of quantitative questionnaires, as it is based on the individual’s personal view of life and its quality. Methods: SQoL, symptoms and SBIQoL, of 22 individuals, who had suffered a cardiac event were explored. SEIQoL-DW is a semi-structured interview, enabling the individual to convert their perspectives into scientific values. QoL areas of importance to patients are called ‘cues’. A modified SEIQoL-DW was used to assess SB and SBIQoL. Data were analysed using both quantitative analysis and qualitative descriptive analysis. Findings: Participants highlighted a range of QoL cues; findings from this study showed that 45% of participants did not rate ‘health’ in the first five QoL cues. A significant number of participants experienced symptoms; a medium negative correlation was found between symptom interference and QoL, rho = -0.353, with high levels of symptom interference associated with low levels of QoL. Conclusions: The range of QoL cues and bothersome symptoms identified in this study had implications for the development of the group, with participants eager to participate and talk candidly about their needs. SEIQoL-DW proved to be an acceptable, reliable and valid technique for measuring both individual QoL, SB and SBIQoL, taking greater consideration of individual perspectives compared with traditional measurement approaches. The significance of nominated symptoms and SBIQoL warrants further attention, especially if these symptoms are reversible.

The calculation of a human lumped-mass model from acceleration and force-plate data

2002 ◽  
Vol 216 (5) ◽  
pp. 333-340 ◽  
Author(s):  
J Shippen
Keyword(s):  
Motion Tracking ◽  
Tracking System ◽  
Kinematic Model ◽  
Force Plate ◽  
Three Dimensional ◽  
Contact Forces ◽  
Lumped Mass ◽  
Mass Model ◽  
Individual Subject ◽  
The Individual

This paper describes a technique for the calculation of a lumped-mass representation of a human based on acceleration of body locations, typically obtained from a three-dimensional motion tracking system, and external forces and torques, typically measured from a force plate. The inverse problem of solving for lumped masses is presented, which results in a mass model of the individual subject via a fast, fully automated approach. This method can be used to obtain the mass model per se for the identification of growth deformities or together with a kinematic model for inverse and forward dynamics. Furthermore the mass model and acceleration trajectories subsequently can be used to calculate the contact forces between the floor and the subject at locations remote to a force plate.

Semi-automated methods for 3-D reconstruction of macromolecular complexes

1995 ◽  
Vol 53 ◽  
pp. 42-43
Author(s):  
B. Carragher ◽  
M. Whittaker
Keyword(s):  
Three Dimensional ◽  
Time Saving ◽  
Macromolecular Complexes ◽  
Symmetry Properties ◽  
Dimensional Reconstruction ◽  
Experienced Operator ◽  
Projection Images ◽  
The Individual ◽  
Natural Symmetry

Techniques for three-dimensional reconstruction of macromolecular complexes from electron micrographs have been successfully used for many years. These include methods which take advantage of the natural symmetry properties of the structure (for example helical or icosahedral) as well as those that use single axis or other tilting geometries to reconstruct from a set of projection images. These techniques have traditionally relied on a very experienced operator to manually perform the often numerous and time consuming steps required to obtain the final reconstruction. While the guidance and oversight of an experienced and critical operator will always be an essential component of these techniques, recent advances in computer technology, microprocessor controlled microscopes and the availability of high quality CCD cameras have provided the means to automate many of the individual steps.During the acquisition of data automation provides benefits not only in terms of convenience and time saving but also in circumstances where manual procedures limit the quality of the final reconstruction.

Value-driven issues throughout the development of sociological theory

2020 ◽  
pp. 147-160
Author(s):  
Gulbarshyn Chepurko ◽  
Valerii Pylypenko
Keyword(s):  
Social Interactions ◽  
Social System ◽  
Sociological Theory ◽  
Social Scientists ◽  
Social Sphere ◽  
Technological Advances ◽  
The Social ◽  
The Individual ◽  
Different Levels

The paper examines and compares how the major sociological theories treat axiological issues. Value-driven topics are analysed in view of their relevance to society in times of crisis, when both societal life and the very structure of society undergo dramatic change. Nowadays, social scientists around the world are also witnessing such a change due to the emergence of alternative schools of sociological thought (non-classical, interpretive, postmodern, etc.) and, subsequently, the necessity to revise the paradigms that have been existed in sociology so far. Since the above-mentioned approaches are often used to address value-related issues, building a solid theoretical framework for these studies takes on considerable significance. Furthermore, the paradigm revision has been prompted by technological advances changing all areas of people’s lives, especially social interactions. The global human community, integral in nature, is being formed, and production of human values now matters more than production of things; hence the “expansion” of value-focused perspectives in contemporary sociology. The authors give special attention to collectivities which are higher-order units of the social system. These units are described as well-organised action systems where each individual performs his/her specific role. Just as the role of an individual is distinct from that of the collectivity (because the individual and the collectivity are different as units), so too a distinction is drawn between the value and the norm — because they represent different levels of social relationships. Values are the main connecting element between the society’s cultural system and the social sphere while norms, for the most part, belong to the social system. Values serve primarily to maintain the pattern according to which the society is functioning at a given time; norms are essential to social integration. Apart from being the means of regulating social processes and relationships, norms embody the “principles” that can be applied beyond a particular social system. The authors underline that it is important for Ukrainian sociology to keep abreast of the latest developments in the field of axiology and make good use of those ideas because this is a prerequisite for its successful integration into the global sociological community.

Manageable Self in the Early Hellenistic Era

2010 ◽  
Vol 39 (2) ◽  
pp. 34-36
Author(s):  
Vaia Touna
Keyword(s):  
Social Economic ◽  
Ancient Greece ◽  
The Self ◽  
Hellenistic Period ◽  
Political Conditions ◽  
The Individual

This paper argues that the rise of what is commonly termed "personal religion" during the Classic-Hellenistic period is not the result of an inner need or even quality of the self, as often argued by those who see in ancient Greece foreshadowing of Christianity, but rather was the result of social, economic, and political conditions that made it possible for Hellenistic Greeks to redefine the perception of the individual and its relationship to others.

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