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Out Of Sight, But Not Out Of Your Brain

  • 5/7/2018 8:00:00 AM
  • View Count 2278
Inchon Park, M.S.Well-coordinated behavior between the limbs is one of the remarkable abilities of human beings. Walking, running, and cycling are forms of highly coordinated simple cyclical motion. These kinds of movements require synchronized or alternated motion of the limbs. Bimanual movement is another good example of movements that are highly coordinated. Bimanual movements account for a substantial proportion of our daily life activities such as tying shoelaces, opening bottles, sending a...
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Can Exercise Protect Your Memory?

Can Exercise Protect Your Memory?

  • 4/16/2018 8:30:00 AM
  • View Count 2028
Jing Chen, Ph.D.Aerobic exercise can help motor skill learning by protecting previously learned procedural memory from subsequent interference tasks (for example, subsequent declarative memory). The primary motor cortex may play an important role during this process. When we examine this has happened, we will perform three experiments to see if our hypothesis is true. In the first two experiments, we let participants perform procedural memory immediately followed by declarative memory or a ...
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Motor Skills: What Kind of Practice Makes Perfect

Motor Skills: What Kind of Practice Makes Perfect

  • 2/5/2017 5:27:00 PM
  • View Count 7432
Taewon Kim, M.S.Our daily life requires complex procedural skills, which are basically presented sequential movements, such as playing a musical instrument, driving a car, typing a computer keyboard, and texting with a smart phone. Thus, learning sequence movements become very important to people to live more efficiently. For example, driving a manual vehicle, which are sort of decision making movements, requires a complicated pattern of subsequent motor skills while changing down a gear from th...
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Developmental Coordination Disorder

Developmental Coordination Disorder

  • 10/21/2016 5:06:00 AM
  • View Count 2636
Priya Patel, M.S.Developmental Coordination Disorder (DCD) is a delay in the development of motor skills, or difficulty in coordinating movements, which results in problems performing in sports and everyday tasks (American Psychiatric Association, 2013). Around 4- to 10% of school aged children in United States are affected by DCD (American Psychiatric Association, 2013). DCD prevalence rates range from about 2% in the United Kingdom to 19% in Greece, with a worldwide average of 6%. Owing t...
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Motor Output Variability in Older Adults

Motor Output Variability in Older Adults

  • 8/1/2013 9:14:00 AM
  • View Count 3442
Deanna Kennedy, M.S.Often athletic performance seeks to improve accuracy and consistency. For example, while playing golf, we want to consistently hit the ball into the hole. However, many factors affect our ability to produce smooth and accurate movements. One such factor is motor output variability (MOV), defined as the unintentional variations in the output of voluntary contractions. It is a natural and inherent phenomenon that can be observed in every movement or contraction made or repeated...
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Improving Goal-Directed Limb Movement: Don't Overthink This!

Improving Goal-Directed Limb Movement: Don't Overthink This!

  • 7/18/2013 5:27:00 AM
  • View Count 3757
Jason Boyle, Ph.DOur nervous system is highly adaptable in perceiving, analyzing and executing movements in relation to an ever-changing perceptual environment. We use vision, knowledge of limb location, and anticipation of force production while simultaneously recognizing variability in our judgment to execute movements through the world around us. Whether it is simple (reaching for a door knob) or complex (threading a needle), goal directed movement has been repeatedly shown to follow a speed/...
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Control of wrist and arm movements of varying difficulties

Control of wrist and arm movements of varying difficulties

  • 11/11/2011 10:43:00 AM
  • View Count 4182
 Jason Boyle, Ph.DOur muscles are controlled by “motor units”, which each consist of a neuron, and the muscle fiber(s) it activates or “innervates”. The muscle that responds is termed an “effector”. Brain mapping studies have shown that a disproportionate area of the motor cortex governs certain effectors of the body. For example, your fingers, lips, and tongue are highly innervated organs that can execute complex movement patterns, but your toes are not ...
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