scholarly journals Cooperation in sound and motion: Complexity matching in collaborative interaction.

Author(s):  
Drew H. Abney ◽  
Alexandra Paxton ◽  
Rick Dale ◽  
Christopher T. Kello
2021 ◽  
Author(s):  
Drew Abney ◽  
Alexandra Paxton ◽  
Rick Dale ◽  
Chris Kello

Complex behaviors are layered with processes across timescales that must be coordinated with each other to accomplish cooperative goals. Complexity matching is the coordination of nested layers of behaviors across individuals. We hypothesize that complexity matching extends across individuals and their respective layers of processes when cooperating in joint tasks. We measured coordination in a joint tower building task through the layers of sound and movement patterns produced by partners and found that partners built higher towers when their sound patterns fell into more similar relations with each other across timescales, as measured by complexity matching. Our findings shed light on the function of complexity matching and lead to new hypotheses about multiscale coordination and communication. We discuss how complexity matching encompasses flexible and complementary dynamics between partners that support complex acts of human coordination.


2003 ◽  
Author(s):  
D. Sofge ◽  
Dennis Perzanowski ◽  
M. Skubic ◽  
N. Cassimatis ◽  
J. G. Trafton ◽  
...  

Actuators ◽  
2021 ◽  
Vol 10 (6) ◽  
pp. 114
Author(s):  
Adam Cox ◽  
Pouria Razzaghi ◽  
Yildirim Hurmuzlu

Inertially Actuated Jumping Robots (IAJR) provide a promising new means of locomotion. The difficulty of IAJR is found in the hybrid nature of the ground contact/flying dynamics. Recent research studies in our Systems Lab have provided a family tree of inertially actuated locomotion systems. The proposed Tapping Robot is the most prompt member of this tree. In this paper, a feedback linearization controller is introduced to provide controllability given the 3-dimensional motion complexity. The research objective is to create a general controller that can regulate the locomotion of Inertially Actuated Jumping Robots. The expected results can specify a desired speed and/or jump height, and the controller ensures the desired values are achieved. The controller can achieve the greatest response for the Basketball Robot at a maximum jump height of 0.25 m, which is greater than the former performance with approximately 0.18 m. The design paradigm used on the Basketball Robot was extended to the Tapping Robot. The Tapping Robot achieved a stable average forward velocity of 0.0773 m/s in simulation and 0.157 m/s in experimental results, which is faster than the forward velocity of former robot, Pony III, with 0.045 m/s.


Author(s):  
Keith Schofield

An overwhelming amount of evidence now suggests that some people are becoming overloaded with neurotoxins. This is mainly from changes in their living environment and style, coupled with the fact that all people are different and display a broad distribution of genetic susceptibilities. It is important for individuals to know where they lie concerning their ability to either reject or retain toxins. Everyone is contaminated with a certain baseline of toxins that are alien to the body, namely aluminum, arsenic, lead, and mercury. Major societal changes have modified their intake, such as vaccines in enhanced inoculation procedures and the addition of sushi into diets, coupled with the ever-present lead, arsenic, and traces of manganese. It is now apparent that no single toxin is responsible for the current neurological epidemics, but rather a collaborative interaction with possible synergistic components. Selenium, although also a neurotoxin if in an excessive amount, is always present and is generally more present than other toxins. It performs as the body’s natural chelator. However, it is possible that the formation rates of active selenium proteins may become overburdened by other toxins. Every person is different and it now appears imperative that the medical profession establish an individual’s neurotoxicity baseline. Moreover, young women should certainly establish their baselines long before pregnancy in order to identify possible risk factors.


2021 ◽  
Vol 5 (ISS) ◽  
pp. 1-17
Author(s):  
Finn Welsford-Ackroyd ◽  
Andrew Chalmers ◽  
Rafael Kuffner dos Anjos ◽  
Daniel Medeiros ◽  
Hyejin Kim ◽  
...  

In this paper, we present a system that allows a user with a head-mounted display (HMD) to communicate and collaborate with spectators outside of the headset. We evaluate its impact on task performance, immersion, and collaborative interaction. Our solution targets scenarios like live presentations or multi-user collaborative systems, where it is not convenient to develop a VR multiplayer experience and supply each user (and spectator) with an HMD. The spectator views the virtual world on a large-scale tiled video wall and is given the ability to control the orientation of their own virtual camera. This allows spectators to stay focused on the immersed user's point of view or freely look around the environment. To improve collaboration between users, we implemented a pointing system where a spectator can point at objects on the screen, which maps an indicator directly onto the objects in the virtual world. We conducted a user study to investigate the influence of rotational camera decoupling and pointing gestures in the context of HMD-immersed and non-immersed users utilizing a large-scale display. Our results indicate that camera decoupling and pointing positively impacts collaboration. A decoupled view is preferable in situations where both users need to indicate objects of interest in the scene, such as presentations and joint-task scenarios, as it requires a shared reference space. A coupled view, on the other hand, is preferable in synchronous interactions such as remote-assistant scenarios.


2018 ◽  
Vol 25 (4) ◽  
pp. 1161-1175
Author(s):  
Aud Marie Øien ◽  
Inger Johanne Solheim

The aim of this study was to explore how teachers and parents experience and reflect on participation and interaction with and between less active fifth-grade pupils in physically active academic lessons, in the school playground and during physical activity homework. This study formed part of the Active Smarter Kids study investigating the effects of daily physical activity on academic performance and health, and generated qualitative data from focus group interviews with teachers and parents. We identified three main themes: (1) aiming at and planning for interaction – a critical prerequisite for learning; (2) negotiating collaborative interaction during activities at school; and (3) facilitating physical activity at home through collaboration. The promotion of collaborative interaction appeared as a powerful means of facilitating learning in physically active academic lessons at school and at home for less active pupils.


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