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Two experiments were conducted in an attempt to further the understanding of how previously identified intrinsic constraints and perceptual factors interact in influencing the learning and performance of various bimanual coordination patterns. The purpose of Experiment 1 was to determine the influence of Lissajous feedback on 1:1 bimanual coordination patterns (0°, 90°, 180° phase lags) when the movement amplitudes of the two limbs were different. Participants coordinated rhythmic movements of their forearms while being provided separate feedback for each limb (no- Lissajous group) or integrated feedback (Lissajous group). Data from Experiment 1 supports the notion that the lead-lag relationship as well as amplitude assimilation between limbs observed in the literature can be partially attributed to the visualperceptual factors present in the testing environment. When participants are provided integrated feedback in the form of Lissajous plots and templates much of the lead-lag and amplitude assimilation effects were eliminated and relative phase error and variability were also greatly reduced after only 3 min of practice under each condition. Results from recent experiments suggest that when the salient visual information (Lissajous feedback) is removed, performance in bimanual coordination tasks rapidly deteriorates. The purpose of Experiment 2 was to determine if reducing the frequency of feedback presentation will decrease the reliance on the feedback and will facilitate the development of an internal representation that will improve performance when visual feedback is removed. Participants receiving reduced frequency feedback presentation were able to perform a delayed retention test with the feedback removed as well as the test with feedback present. Data from Experiment 2 demonstrates that salient extrinsic Lissajous feedback can effectively be combined with reduced frequency feedback presentation in a way that performance levels, when tested without the availability of feedback, match those obtained when tested in the presence of Lissajous feedback. Taken together the present experiments add to the growing literature that supports the notion that salient perceptual information can override some aspects of the system's intrinsic dynamics typically linked to motor output control. The strong tendencies toward the intrinsic dynamics found in numerous previous bimanual movement studies and the difficulties in producing various coordination patterns may actually represent detrimental effects attributable to the perceptual information available in the environment and the attentional focus participants adopt. Given external integrated salient visual information participants can essentially tune-in and learn difficult bimanual coordination patterns with relatively little practice.
Vols. for 1963- include as pt. 2 of the Jan. issue: Medical subject headings.
ICPA provides a forum for researchers and academics who share a common interest in ecological psychology to come together, present new research, and foster ideas towards the advancement of the field. This volume is the fourteenth in the Studies in Perception and Action book series, and highlights research presented at the 19th International Conference of Perception and Action (ICPA) in the summer of 2017. Since 1991, this edited book series has appeared in conjunction with the biennial ICPA meeting. The short papers and empirical articles presented in this book represent the contributions of researchers and laboratories from across the globe. The reader will find new, cutting-edge research on a wide variety of topics in perception and action. This volume will especially appeal to those that are interested in James J. Gibson's ecological approach to psychology, as well as, more broadly, students and researchers of visual and haptic perception, perceptual development, human movement dynamics, human factors, and social processes.
One of the most striking features of Coordination Dynamics is its interdisciplinary character. The problems we are trying to solve in this field range from behavioral phenomena of interlimb coordination and coordination between stimuli and movements (perception-action tasks) through neural activation patterns that can be observed during these tasks to clinical applications and social behavior. It is not surprising that close collaboration among scientists from different fields as psychology, kinesiology, neurology and even physics are imperative to deal with the enormous difficulties we are facing when we try to understand a system as complex as the human brain. The chapters in this volume are not simply write-ups of the lectures given by the experts at the meeting but are written in a way that they give sufficient introductory information to be comprehensible and useful for all interested scientists and students.
This edited volume features papers from the 10th Int'l Conf on Perception & Action held by the ISEP in Edinburgh, Scotland 8/99. It offers a cross-section of leading research and a mini history on the ecological approach to perception & action.
Given the success of the previous edition of this Research Topic, we are pleased to announce the release of its second volume. Age-related changes can concurrently affect cognitive, motor, and sensory functioning and their interactions. For instance, age-related unisensory impairments have been linked to slower gait, functional mobility decline, increased risks of falls and reduced quality of life. Additionally, balance impairments have been associated with inefficient interactions between musculoskeletal and sensory systems which are often compromised in aging. Lastly, inefficient multisensory integration processes have been linked to increased falls, worse balance, slower gait, and increased cognitive impairments. Consequently, the successful interaction among sensory, motor and cognitive systems are an integral aspect for everyday life activities, which commonly deteriorate with age.
Neuro-Behavioral Determinants of Interlimb Coordination: A multidisciplinary approach focuses on bimanual coordination against the broader context of the coordination between the upper and lower limbs. However, it is also broad in scope in that it reviews recent developments in the study of coordination by means of the latest technologies for the study of brain function, such as functional magnetic resonance imaging, near-infrared spectroscopy, magneto-encephalography, and transcranial magnetic stimulation. In addition, new developments in recovery of interlimb coordination following spinal cord injury and other insults of the central nervous system, such as stroke, are reviewed.
This book brings together scientists from all over the world who have defined and developed the field of Coordination Dynamics. Grounded in the concepts of self-organization and the tools of nonlinear dynamics, appropriately extended to handle informational aspects of living things, Coordination Dynamics aims to understand the coordinated functioning of a variety of different systems at multiple levels of description. The book addresses the themes of Coordination Dynamics and Dynamic Patterns in the context of the following topics: Coordination of Brain and Behavior, Perception-Action Coupling, Control, Posture, Learning, Intention, Attention, and Cognition.
This up-to-date handbook focuses on the study of action, or"motor control,"which examines movement and skill and the internal processes that lead to them. As action is interrelated with cognition, this is a vigorous field of investigation.Written by international experts, Motor Skills provides current reviews on general processes important to motor control--learning, coordination, timing, planning, and control--and on the individual skills of throwing, catching, reaching, and typing.The text describes important conceptual and methodological advances regarding control theory and timing, and is divided into two sections which analyze skill from the perspectives of general processes and individual skills.