IB SEHS - Topic 5.2 Already Graded A

IB SEHS - Topic 5.2 Already Graded A Exteroceptors ️Provide information about the external environment. Exteroceptors involved in sensation with regard to sport are vision and audition. Proprioceptors ️Proprioception means "sense of self". In the limbs, the proprioceptors are sensors that provide information about joint angle, muscle length, and muscle tension, which is integrated to give information about the position of the limb in space. Interoceptors ️Provide information from within the body, about body position, and position of limbs. The main interceptors involved in sport are the vestibular apparatus, which provide information about balance; joint receptors, muscle spindles, and Golgi tendon organs, which provide information about limb positions. Receptors sensing blood pressure, plasma osmolality, blood glucose concentration or the degree of stretching of the urinary bladder. Information processing ️the system by which we take information from our surrounding environment, we use it to make a decision and then produce a response Simple model of information processing ️Input decision making output Welfare's model of information processing ️Includes 1)sense organs 2)Perception 3)Short-term memory 4)Long term memory 5)Decision-making 6)Effector control 7)Feedback Receptors associated with sensory input ️Exteroceptors, proprioceptors, interoceptors Input ️Environment that a performer hears, sees & feels (display or stimulus) Output ️What the performer does (response) Central Nervous System (CNS) ️brain & spinal cord Signal Detection Theory ️The probability of detecting any given signal depends on difference between 1) intensity of the signal 2) intensity of background noise Short Term Memory (STM) ️Has capacity or space limitation, individuals can only remember 7 ± 2 bits of information Long Term Memory (LTM) ️Unlimited capacity but can be difficult to retrieve information/memories Response Time ️Time from the introduction of a stimulus to completion of the action required to deal with the problem, response time is made up of reaction time and movement time Reaction Time ️Time elapsed from sudden onset of a stimulus to the beginning of over response Movement Time ️The time it takes to carry out motor aspects of the performance Selective Attention ️Focusing on relevant information while ignoring irrelevant information The Psychology Refractory Period ️The time gap between time it takes to react to first and second stimuli Motor Program ️A set of muscle commands that allow movements to be performed without