Download or read book Visual Strategies for the Control of Locomotion written by Andrew P. Duchon and published by . This book was released on 1999 with total page 404 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Visual Control of Locomotion written by Brett R. Fajen and published by Cambridge University Press. This book was released on 2021-04-22 with total page 126 pages. Available in PDF, EPUB and Kindle. Book excerpt: This Element examines visual perception in the context of activities that involve moving about in complex, dynamic environments. A central theme is that the ability of humans and other animals to perceive their surroundings based on vision is profoundly shaped by the need to adaptively regulate locomotion to variations in the environment. As such, important new insights into what and how we perceive can be gleaned by investigating the connection between vision and the control of locomotion. I present an integrated summary of decades of research on the perception of self-motion and object motion based on optic flow, the perception of spatial layout and affordances, and the control strategies for guiding locomotion based on visual information. I also explore important theoretical issues and debates, including the question of whether visual control relies on internal models.

Download or read book Neuro motor control and feed forward models of locomotion in humans written by Marco Iosa and published by Frontiers Media SA. This book was released on 2015-07-29 with total page 192 pages. Available in PDF, EPUB and Kindle. Book excerpt: Locomotion involves many different muscles and the need of controlling several degrees of freedom. Despite the Central Nervous System can finely control the contraction of individual muscles, emerging evidences indicate that strategies for the reduction of the complexity of movement and for compensating the sensorimotor delays may be adopted. Experimental evidences in animal and lately human model led to the concept of a central pattern generator (CPG) which suggests that circuitry within the distal part of CNS, i.e. spinal cord, can generate the basic locomotor patterns, even in the absence of sensory information. Different studies pointed out the role of CPG in the control of locomotion as well as others investigated the neuroplasticity of CPG allowing for gait recovery after spinal cord lesion. Literature was also focused on muscle synergies, i.e. the combination of (locomotor) functional modules, implemented in neuronal networks of the spinal cord, generating specific motor output by imposing a specific timing structure and appropriate weightings to muscle activations. Despite the great interest that this approach generated in the last years in the Scientific Community, large areas of investigations remain available for further improvement (e.g. the influence of afferent feedback and environmental constrains) for both experimental and simulated models. However, also supraspinal structures are involved during locomotion, and it has been shown that they are responsible for initiating and modifying the features of this basic rhythm, for stabilising the upright walking, and for coordinating movements in a dynamic changing environment. Furthermore, specific damages into spinal and supraspinal structures result in specific alterations of human locomotion, as evident in subjects with brain injuries such as stroke, brain trauma, or people with cerebral palsy, in people with death of dopaminergic neurons in the substantia nigra due to Parkinson’s disease, or in subjects with cerebellar dysfunctions, such as patients with ataxia. The role of cerebellum during locomotion has been shown to be related to coordination and adaptation of movements. Cerebellum is the structure of CNS where are conceivably located the internal models, that are neural representations miming meaningful aspects of our body, such as input/output characteristics of sensorimotor system. Internal model control has been shown to be at the basis of motor strategies for compensating delays or lacks in sensorimotor feedbacks, and some aspects of locomotion need predictive internal control, especially for improving gait dynamic stability, for avoiding obstacles or when sensory feedback is altered or lacking. Furthermore, despite internal model concepts are widespread in neuroscience and neurocognitive science, neurorehabilitation paid far too little attention to the potential role of internal model control on gait recovery. Many important scientists have contributed to this Research Topic with original studies, computational studies, and review articles focused on neural circuits and internal models involved in the control of human locomotion, aiming at understanding the role played in control of locomotion of different neural circuits located at brain, cerebellum, and spinal cord levels.

Download or read book Adaptability of Human Gait written by A.E. Patla and published by Elsevier. This book was released on 1991-03-25 with total page 471 pages. Available in PDF, EPUB and Kindle. Book excerpt: A large number of volumes have been produced summarizing the work on generation and control of rhythmic movements, in particular locomotion. Unfortunately most of them focus on locomotor studies done on animals. This edited volume redresses that imbalance by focusing completely on human locomotor behaviour. The very nature of the problem has both necessitated and attracted researchers from a wide variety of disciplines ranging from psychology, neurophysiology, kinesiology, engineering, medicine to computer science. The different and unique perspectives they bring to this problem provide a comprehensive picture of the current state of knowledge on the generation and regulation of human locomotor behaviour. A common unifying theme of this volume is studying the adaptability of human gait to obtain insights into the control of locomotion. The intentional focus on "adaptability" is meant to draw attention to the importance of understanding the generation and regulation of "skilled locomotor behaviour" rather than just the generation of basic locomotor patterns which has been the major focus of animal studies. The synthesis chapter at the end of the volume examines how the questions posed, the technology, and the experimental and theoretical paradigms have evolved over the years, and what the future has in store for this important research domain.

Download or read book Maps Programs and the Visual Control of Locomotion written by James Alick Thomson and published by . This book was released on 1977 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Visual Control of Locomotion written by Jurgen Konczak and published by . This book was released on 1991 with total page 208 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Maps Programs and the Visual Control of Locomotion written by J. A. Thomson and published by . This book was released on 1977 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Vision and Motor Control written by L. Proteau and published by Elsevier. This book was released on 1992-02-20 with total page 497 pages. Available in PDF, EPUB and Kindle. Book excerpt: Since the classic studies of Woodworth (1899), the role of vision in the control of movement has been an important research topic in experimental psychology. While many early studies were concerned with the relative importance of vision and kinesthesis and/or the time it takes to use visual information, recent theoretical and technical developments have stimulated scientists to ask questions about how different sources of visual information contribute to motor control in different contexts. In this volume, articles are presented that provide a broad coverage of the current research and theory on vision and human motor learning and control. Many of the contributors are colleagues that have met over the years at the meetings and conferences concerned with human movement. They represent a wide range of affiliation and background including kinesiology, physical education, neurophysiology, cognitive psychology and neuropsychology. Thus the topic of vision and motor control is addressed from a number of different perspectives. In general, each author sets an empirical and theoretical framework for their topic, and then discusses current work from their own laboratory, and how it fits into the larger context. A synthesis chapter at the end of the volume identifies commonalities in the work and suggests directions for future experimentation.

Download or read book Control of Posture and Locomotion written by University of Alberta and published by Springer. This book was released on 1974 with total page 664 pages. Available in PDF, EPUB and Kindle. Book excerpt: R. B. Stein Department of Physiology, University of Alberta, Edmonton, Canada The impetus for this volume and the conference that gave rise to it was the feeling that studies on motor control had reached a turning point. In recent years, studies on motor units and muscle receptors have become increasingly detailed. Attempts to integrate these studies into quantitative models for the spinal control of posture have appeared and preliminary attempts have been made to include the most direct supraspinal pathways into these models (see for example the chapters by Nashner and Melvill Jones et al. in this volume). Thus, we felt that the time was ripe to summarize these developments in a way which might be useful not only to basic medical scientists, but also to clinicians dealing with disorders of motor control, and to bioengineers attempting to build devices to assist or replace normal control. Over the past few years, computer methods have also made possible increasingly detailed studies of mammalian locomotion, and improved physiological and pharmacological studies have appeared. There seems to be almost universal agreement now that the patterns for locomotion are generated in the spinal cord, and that they can be generated with little, if any, phasic sensory information (see chapters by Grillner and Miller et al. ). This concludes a long controversy on whether chains of reflexes or central circuits generate stepping patterns. The nature of the pattern generators in mammals remains obscure, but invertebrate studies on locomotion have recently made striking advances.

Download or read book Afferent Control of Posture and Locomotion written by J. H. J. Allum and published by Elsevier. This book was released on 1989 with total page 543 pages. Available in PDF, EPUB and Kindle. Book excerpt: How are the functions of control, integration and generation of motor commands performed by the brain? A view of the motor systems of the brain as hierarchically organized structures, where neurone populations and simple reflex pathways form elementary building blocks, answers this question. There are contradictory forecasts of how major advances in our understanding of posture and locomotion will develop. Some believe that the key to understanding lies in a detailed knowledge of the cortical and subcortical structures, while others regard a thorough grasp of spinal and brainstem neuronal circuitry as crucial. Yet another approach is to study human or animal postural and locomotive behaviour, looking for influences that act to select one of several potential motor patterns or strategies under a given set of circumstances. While each of these viewpoints has its strengths - and weaknesses - real progress can only be achieved through a constructive exchange of ideas, criticism and information. To make this possible, a group of scientists gathered in Switzerland in September 1988 to present and discuss their research. This book represents the scientific outcome of that meeting.Its subject matter reflects closely the different approaches of the participants: current research on sensory transduction, spinal integration, and higher order neuronal and behavioural control. Using a technique of overview and critique of each group of papers we hope that the non-specialist reader can also grasp the issues involved and the directions for further research in motor control.

Download or read book Visual Control of Locomotion written by and published by . This book was released on 2005 with total page 11 pages. Available in PDF, EPUB and Kindle. Book excerpt: The accomplishments were threefold. First, a software tool for rendering virtual environments was developed, a tool useful for other researchers interested in visual perception and visual control of action. Second, an instrumented electric scooter was developed that allows a person to drive around in virtual reality while experiencing the normal inertial cues associated with physical motion. This type of research vehicle can be used to investigate the roles of visual and inertial cues in the control of locomotion. Third, a number of behavioral experiments were conducted in real and virtual environments. The principal research findings were these: (1) complex behaviors, like steering a curved path and ball catching, can be performed without the retinal motion associated with luminance-based stimulation, (2) visual control of posture depends on the sensed relative motion between self and environment instead of on "optic flow", (3) people can continue steering a vehicle after the loss of visual information, implicating an internal model of surrounding space, (4) a steering error observed while driving with visual information only is eliminated when inertial cues.

Download or read book Vision and Goal Directed Movement written by Digby Elliott and published by Human Kinetics. This book was released on 2010-02-05 with total page 575 pages. Available in PDF, EPUB and Kindle. Book excerpt: Vision and Goal-Directed Movement: Neurobehavioral Perspectives is also available as an e-book. The e-book is available at a reduced price and allows readers to highlight and take notes throughout the text. When purchased through the Human Kinetics Web site, access to the e-book is immediately granted when the order is received. To interact with the environment, an individual must code, store, and translate spatial information into the appropriate motor commands for achieving an outcome. Working from this premise, Vision and Goal-Directed Movement: Neurobehavioral Perspectives discusses how visual perception, attention, and memory are linked to the processes of movement preparation and execution. With contributions from active researchers in movement science, Vision and Goal-Directed Movement presents the latest theories on the utilization of vision in goal-directed movement control. As a resource for motor control and motor learning researchers, students, educators, and clinicians, Vision and Goal-Directed Movement offers the following: • Comprehensive coverage of current behavior-based literature on the visual control of goal-directed movement • A systematic explication of the sensory and physiological processes and systems responsible for fast, accurate, and efficient performance • A solid foundation for further study of the sensory and neural systems responsible for precise goal-directed behavior • A discussion of how current research on vision and goal-directed movement can assist in creating efficient and safe work environments Using research informed by neural imaging and magnetic brain stimulation, this text provides readers with a better understanding of the neural foundations for goal-directed movement, illustrates the flexibility of the human visuomotor system, and discusses how regulation of movements depends on the learning and developmental history of the performer. It begins by reviewing the works of R.S. Woodworth and the influence of his theories on current research. The majority of the chapters in the first section of the book take a behavioral and process-oriented approach to exploring goal-directed movement. The text then explores the sensory and neural foundations for goal-directed action, including issues related to both pursuit and saccadic eye movements as well as discussion of the specialization of various cortical systems for the regulation of movement. Especially relevant to professionals and scientists concerned with skill instruction and rehabilitation, the final part of the text provides a review of recent research on how and why limb control changes occur with practice and development. In addition, Vision and Goal-Directed Movement considers how the research presented can maximize precision, efficiency, and safety in workspace design. Vision and Goal-Directed Movement: Neurobehavioral Perspectives adds a unique offering to the literature base for motor behavior, demonstrating how advances in both behavioral and neurophysiological methods can inform theories related to the biological systems contributing to skilled performance.

Download or read book Motor Learning and Control for Dance written by Donna Krasnow and published by Human Kinetics. This book was released on 2015-06-22 with total page 336 pages. Available in PDF, EPUB and Kindle. Book excerpt: As dance training evolves and becomes more complex, knowledge of motor behavior is foundational in helping dancers learn and master new skills and become more efficient in integrating the skills. Motor Learning and Control for Dance is the first resource to address motor learning theory from a dance perspective. Educators and students preparing to teach will learn practical ways to connect the science behind dance to pedagogy in order to prepare dancers for performance. Dancers interested in performance from the recreational to professional levels will learn ways to enhance their technical and artistic progress. In language accessible even to those with no science background, Motor Learning and Control for Dance showcases principles and practices for students, artists, and teachers. The text offers a perspective on movement education not found in traditional dance training while adding to a palette of tools and strategies for improving dance instruction and performance. Aspiring dancers and instructors will explore how to develop motor skills, how to control movement on all levels, and—most important—how motor skills are best taught and learned. The authors, noted experts on motor learning and motor control in the dance world, explore these features that appeal to students and instructors alike: • Dance-specific photos, examples, and figures illustrate how to solve common problems various dance genres. • The 16 chapters prepare dance educators to teach dancers of all ages and abilities and support the development of dance artists and students in training and performance. • An extensive bibliography of sports and dance science literature allows teachers and performers to do their own research. • A glossary with a list of key terms at the back of the book. Part I presents an overview of motor behavior, covering motor development from birth to early adulthood. It provides the essential information for teaching posture control and balance, the locomotor skills underlying a range of complex dance skills, and the ballistic skills that are difficult to teach and learn, such as grand battement and movements in street dance. Part II explores motor control and how movement is planned, initiated, and executed. Readers will learn how the nervous system organizes the coordination of movement, the effects of anxiety and states of arousal on dance performance, how to integrate the senses into movement, and how speed and accuracy interact. Part III investigates methods of motor learning for dancers of all ages. Readers will explore how to implement a variety of instructional strategies, determine the best approaches for learning dance skills, and motivate and inspire dancers. This section also discusses how various methods of practice can help or hinder dancers, strategies for improving the recall of dance skills and sequences, and how to embrace somatic practice and its contribution to understanding imagery and motor learning. Motor Learning and Control for Dance addresses many related topics that are important to the discipline, such as imagery and improvisation. This book will help performers and teachers blend science with pedagogy to meet the challenge of artistry and technique in preparing for dance performance.

Download or read book Vestibular and Visual Control on Posture and Locomotor Equilibrium written by International Society of Posturography. International Symposium and published by S. Karger AG (Switzerland). This book was released on 1985 with total page 384 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Obstacle Avoidance Behaviour During Locomotion written by S. E. M. Jansen and published by . This book was released on 2012 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Neural and Computational Modeling of Movement Control written by Ning Lan and published by Frontiers Media SA. This book was released on 2017-04-17 with total page 180 pages. Available in PDF, EPUB and Kindle. Book excerpt: In the study of sensorimotor systems, an important research goal has been to understand the way neural networks in the spinal cord and brain interact to control voluntary movement. Computational modeling has provided insight into the interaction between centrally generated commands, proprioceptive feedback signals and the biomechanical responses of the moving body. Research in this field is also driven by the need to improve and optimize rehabilitation after nervous system injury and to devise biomimetic methods of control in robotic devices. This research topic is focused on efforts dedicated to identify and model the neuromechanical control of movement. Neural networks in the brain and spinal cord are known to generate patterned activity that mediates coordinated activation of multiple muscles in both rhythmic and discrete movements, e.g. locomotion and reaching. Commands descending from the higher centres in the CNS modulate the activity of spinal networks, which control movement on the basis of sensory feedback of various types, including that from proprioceptive afferents. The computational models will continue to shed light on the central strategies and mechanisms of sensorimotor control and learning. This research topic demonstrated that computational modeling is playing a more and more prominent role in the studies of postural and movement control. With increasing ability to gather data from all levels of the neuromechanical sensorimotor systems, there is a compelling need for novel, creative modeling of new and existing data sets, because the more systematic means to extract knowledge and insights about neural computations of sensorimotor systems from these data is through computational modeling. While models should be based on experimental data and validated with experimental evidence, they should also be flexible to provide a conceptual framework for unifying diverse data sets, to generate new insights of neural mechanisms, to integrate new data sets into the general framework, to validate or refute hypotheses and to suggest new testable hypotheses for future experimental investigation. It is thus expected that neural and computational modeling of the sensorimotor system should create new opportunities for experimentalists and modelers to collaborate in a joint endeavor to advance our understanding of the neural mechanisms for postural and movement control. The editors would like to thank Professor Arthur Prochazka, who helped initially to set up this research topic, and all authors who contributed their articles to this research topic. Our appreciation also goes to the reviewers, who volunteered their time and effort to help achieve the goal of this research topic. We would also like to thank the staff members of editorial office of Frontiers in Computational Neuroscience for their expertise in the process of manuscript handling, publishing, and in bringing this ebook to the readers. The support from the Editor-in-Chief, Dr. Misha Tsodyks and Dr. Si Wu is crucial for this research topic to come to a successful conclusion. We are indebted to Dr. Si Li and Ms. Ting Xu, whose assistant is important for this ebook to become a reality. Finally, this work is supported in part by grants to Dr. Ning Lan from the Ministry of Science and Technology of China (2011CB013304), the Natural Science Foundation of China (No. 81271684, No. 61361160415, No. 81630050), and the Interdisciplinary Research Grant cross Engineering and Medicine by Shanghai Jiao Tong University (YG20148D09). Dr. Vincent Cheung is supported by startup funds from the Faculty of Medicine of The Chinese University of Hong Kong. Guest Associate Editors Ning Lan, Vincent Cheung, and Simon Gandevia

Download or read book Control of Posture and Locomotion written by R. Stein and published by . This book was released on 1974-01-01 with total page 652 pages. Available in PDF, EPUB and Kindle. Book excerpt: