Motor_Behavior_KIN_2501-Jan_10 - 8/24/2010 What is Motor...

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Unformatted text preview: 8/24/2010 What is Motor Behavior? AN INTRODUCTION TO MOTOR BEHAVIOR & Motor Control Motor Control Dr. Jan Hondzinski For KIN 2501 Human Human behavior consists of a variety of types of behaviors, e.g. – Social – based on society – Cognitive – based thought process Cognitive thought process – Motor – based on movement – Psychology (cognitive and social) – Physiology (motor) Motor Behavior History 1899 1899 - Woodworth – Merge of psychology & physiology – Operational study of limb movements – Speed and accuracy relations Research Focus in Motor Behavior Motor Motor behavior involves the performance of motor skills – Motor skills require head, limb, and or body movement to achieve the goal of the activity After After WWII in the 1970s – merge of motor behavior & neurophysiology In In the study of human motor behavior, LSU focus is on understanding “coordinated” human movement when performing motor skills – Complex array of movements associated with achieving a performance goal – Concentration on movement !!! Coordinated Human Movement What are the performance goals for these motor skills? skills? Undergraduate “Motor Behavior” in the LSU Kinesiology Department “Motor “Motor Behavior” the the study of coordinated human movement from various perspectives: – ***Motor Control 3517 – How the nervous system functions to produce coordinated movement – Motor Learning 3513 – The acquisition of motor skills – Motor Development 4512 – The lifespan development of movement capabilities – Biomechanics 3514 – The application of mechanical principles to the study of coordinated human movement ***required ***required for Human movement science majors 1 8/24/2010 Levels of Study in Motor Behavior Behavioral Behavioral Level – Investigation of motor skill performance by observing performance itself; neural mechanism implications often made – Courses in Motor Learning, Motor Development, and Biomechanics Biomechanics follow this approach KIN 3517: Neuromotor Control of Human Movement and an Motor Motor Control Neural Neural Level – Investigation of motor skill performance by observing effects in CNS/PNS and “altered” performance – Neuromotor course follows neural and behavioral approaches Motor Control at LSU KIN KIN 3517 — Neuromotor Control of Human Movement Motor Control at LSU Introduction Introduction to neuroanatomy Overcome Overcome fictitious information of the NS – “People only use only 10% of the brain” only use only 10% of the brain – “Touching the brain will hurt” SENIORS SENIORS in Human Movement Science GOALS GOALS – for students to learn about, to acquire a better understanding of and to gain an appreciation for the neural aspects of human movement Neural Neural Links to movement and behavior Some Some clinical and sport application The Study of Motor Control The ability to direct movement – Behavioral – Neural Study of motor control: how the nervous system directs mechanisms needed for movement How is it Used? Occupations: Occupations: Medical Medical personnel – MD, PT, OT, … Equipment sales/design Teacher Teacher Neuron Researcher Researcher Useful to all humans! 2 8/24/2010 Data Collection Techniques movement Areas of Research Reaching Reaching and grasping Balance Balance and posture Gait Gait — Obstacle avoidance; Transitional movements Motion Motion Analyses – kinematics: body Electromyography Electromyography (EMG) – muscle activity activity Transducers Transducers - force, acceleration Brain Brain Imaging – examine cognitive, sensory, emotional, motor functions (CT, fMRI, EEG) fMRI, Combinations Combinations Specific Specific tasks — Clinical (rehabilitation); Human factors (safety) Example of Research in Motor Control/Learning Question investigated: Will subjects with peripheral neuropathy (PN)improve endpoint accuracy and coordination when reaching with a step after training? Methods: Methods: Subjects had physician diagnosis of PN PrePre-test 6-weeks with (Tai Chi, Gait) or without or (Controls) training training PostPost-test Variables: endpoint accuracy, movement endpoint accuracy, coupling, balance, movement time (MT), mobility (MT), Experiment cont. Results: 1) Training decreased errors and improved balance 2) No changes: mobility; movement coupling 3) Associations: errors-balance; Associations: errors balance; mobilitymobility-coupling Conclusion: Short term training in this population can improve balance needed for better endpoint accuracy. 15 A Ti Control 4 Tai Chi 6 Gait Errors (cm) 10 5 0 1.0 Correlation Coefficient 0.8 0.6 0.4 0.2 0.0 r = -0.78p < 0.001 3 10 17 24 TUG Scores Knowledge Knowledge Gained Teaching/coaching Teaching/coaching strategies – “keep your eye on the ball” Toddler Motor Control Adult Safety Safety – cell phone and driving, dual task and attention demands Clinic Clinic – identify injuries, movement strategies Development Development – testing reflexes infants, older adults M () 3 ...
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This note was uploaded on 09/11/2010 for the course KIN kin 2501 taught by Professor Hill during the Fall '10 term at LSU.

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