INTRODUCTION TO MOTOR BEHAVIOR AND LEARNING KEY TERMS AND CONCEPTS Motor Control Motor Learning Genetically Defined vs. Learned Movements Skill, Skills, and Ability Gross vs. Fine Motor Skills MEASURING MOTOR PERFORMANCE DEFINITION OF KEY TERMS AND KEY TERMS AND CONCEPTS Discrete vs. Serial vs. Continuous Motor Skills Open skills (Reactive, Externally Paced, or Forced Paced Skills) Closed Skills (Internally Paced or Self-Paced Skills) Response-To-Response Variability CONCEPTS MOTOR CONTROL A FIELD OF STUDY CONCERNED WITH HOW SENSORY INFORMATION FROM THE ENVIRONMENT AND/ OR BODY IS USED IN THE CONTROL OF MOVEMENTAND HOW SUCH INFORMATION ALLOWS AN INDIVIDUALTO SELECT A MOVEMENT (Schmidt, 1988). DEFINITION OF KEY TERMS AND DEFINITION OF KEY TERMS AND CONCEPTS CONCEPTS MOTOR CONTROL MOTOR LEARNING CONCERNED WITH HOW MOVEMENTS ARE MODIFIED OR PRODUCED DIFFERENTLY AS A RESULT OF PRACTICE AND EXPERIENCE (Schmidt, 1988). 1 DEFINITION OF KEY TERMS AND DEFINITION OF KEY TERMS AND CONCEPTS CONCEPTS MOTOR LEARNING GENETICALLY DEFINED MOVEMENTS (INHERITED-REFLEXIVE, OR "SELF-DIFFERENTIATED) -- IS A TYPE OF LIMB CONTROL WHOSE DEVELOPMENT AND IMPROVEMENT IS DETERMINED BY GENETIC MAKE-UP AND IS RELATIVELY SIMILAR ACROSS MEMBERS OF THE SAME SPECIES. DEFINITION OF KEY TERMS AND DEFINITION OF KEY TERMS AND CONCEPTS CONCEPTS LEARNED MOVEMENTS MOTOR LEARNING MOTOR BEHAVIORS THAT NEED TO BE MODIFIED AND REFINED THROUGH PRACTICE AND EXPERIENCE SKILLS --"ACTS OR TASKS THAT REQUIRE MOVEMENT AND MUST BE LEARNED IN ORDER TO BE PROPERLY PERFORMED (Magill, 1985, P. 5)." SKILL --"SKILL CONSISTS IN THE ABILITY TO BRING ABOUT SOME END RESULT WITH MAXIMUM CERTAINTY AND MINIMUM OUTLAY OF ENERGY, OR OF TIME AND ENERGY (Guthrie, 1952, p. 136)." DEFINITION OF KEY TERMS AND CONCEPTS MOTOR LEARNING ABILITY --"IS A GENERAL TRAIT OR CAPACITY OF AN INDIVIDUAL THAT IS RELATED TO THE PERFORMANCE OF A VARIETY OF MOTOR SKILLS BY BEING A COMPONENT OF THOSE SKILLS' STRUCTURE (Magill, 1989, p. 9)." LEVELS OF ANALYSIS: Interactions Within Cells Interaction Between Cells Interaction between Groups of Cells Interaction Between Limbs or the Whole Body 2 THE CLASSIFICATION OF MOTOR SKILLS THE CLASSIFICATION OF MOTOR SKILLS THE PRECISION OF MOTOR BEHAVIOR INITIATION AND TERMINATION OF MOVEMENT GROSS MOTOR SKILLS FINE MOTOR SKILLS DISCRETE MOTOR SKILLS SERIAL MOTORS KILLS CONTINUOUS MOTOR SKILLS (ARBITRARY BEGINNING AND END POINTS) Image source: http://www.martinarchery.com http://www.martinarchery.com// Categories Categories of of Motor Motor Skills Skills Performance Performance Measures Measures THE CLASSIFICATION OF MOTOR SKILLS STABILITY OF THE ENVIRONMENT OPEN SKILLS (REACTIVE or EXTERNALLY PACED SKILLS) -- THE PERFORMER RESPONDS APPROPRIATELY AT THE PROPER TIME TO CHANGES IN THE STIMULUS SITUATION. CLOSED SKILLS (SELFPACED) -- THE PERFORMER RESPONDS AT HER OR HIS DISCRETION TO A RELATIVELY CONSTANT AND STATIONARY STIMULUS IN THE SPORT ENVIRONMENT. CHOICE Red GN Response production TRIALS DISPLACEMENT VELOCITY ACCELERATION DISTANCE JOINT ANGLE EMG & EEG Reaction Reaction Time Time ++ Movement Movement Time Time == Response Response Time Time DISCRIMINATION WARNING Red TIME ERROR Three Three Conditions Conditions for for Reaction Reaction Time Time (RT) (RT) Testing Testing SIMPLE Response outcome YW SIGNAL Red GN “GO” SIGNAL INITIATION TERMINATION OF THE RESPONSE OF THE RESPONSE YW FOREFORE- REACTION TIME MOVEMENT TIME PERIOD INDEX MIDDLE RING INDEX FINGER Index TIME 3 Measures Measures of of Error Error for for aa Single Subject Single Subject CONSTANT ERROR (CE) The average error in responding. It is a measure of response biasing since it does not consider the amount of scatter, variability, or inconsistency in performing. CE = (Xi - T) n Measures Measures of of Error Error for for aa Single Single Subject Subject CONSTANT ERROR (CE) The average error in responding. It is a measure of response biasing since it does not consider the amount of scatter, variability, or inconsistency in performing. CE = (Xi - T) n Summary Questions Comments 4