Amy Vega, MS, CCC-SLP
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Blog entries tagged in timing in the brain
A Bit of Research: The important of timing in Speed Skating and the use of the Interactive Metronome
The important of timing in Speed Skating and the use of the Interactive Metronome
Researchers at Korea University College of Medicine (Park et al, 2012) recently conducted a neural imaging study of elite speed skaters to investigate whether training of complex motor skills resulted in structural changes to the cerebellum. The cerebellum responds to intense, repetitive training with increased brain mass in areas critical for skilled motor movement, in this case for control of balance, precisely coordinated movement, and visually guided movement. The authors compared the cerebellums of professional speed skaters to individuals who did not engage in regular exercise. They found that the specific skills required for speed skating that were trained repetitively resulted in structural changes to the brain that enhanced balance and coordination. They also found that the particular side of the cerebellum that was exercised repeatedly was affected (i.e., the right side due to maintaining balance on the right foot during turns). Of note, the cerebellum is also a central part of the brain’s internal timing network. The timing and synchronization of neural signals ultimately controls balance and coordination...Continue reading
Humans perceive time. We use this ability to predict what is coming, to think about how we will react, and then to respond in a timely fashion. It is well-documented that children with ADHD have an impaired sense of time. Areas of the brain that control our perception of time are affected in children with ADHD (i.e., working memory). In an article published in the Journal of Child Psychology and Psychiatry, researchers found that children with ADHD who also have a Reading Disorder have even more difficulty with timing skills. Research has shown that Interactive Metronome, a training program that addresses the underlying problem with timing in the brain, improves symptoms of ADHD and reading.
Toplak, M.E., Rucklidge, J.J., Hetherington, R., John, S.C.F., and Tannock, R. (2003). Time perception
deficits in attention deficit/hyperactivity disorder and comorbid reading difficulties in child and adolescent samples. Journal of Child Psychology and Psychiatry, 44(6), 888-903.
“Time is essential to speech.” This study by de Cheveigne (2003) makes clear that in order to understand speech, the brain depends upon its internal clock (or what is known as temporal processing) to decipher at a minimum: 1) whether the left or right ear heard it first or which direction the voice came from, 2) pitch and intonation or WHO is speaking, 3) each individual sound within each word, 4) how the sounds blend together to make each word, including whether each sound is a vowel, consonant, voiced, voiceless, and 5) whether there are pauses between sounds and words that add emphasis or meaning. When timing in the brain or temporal processing is off by just milliseconds, a person may have difficulty processing and understanding speech. Interactive Metronome is a patented program that addresses the underlying problem in Auditory Processing Disorders, tuning the internal clock to the millisecond in order to more accurately perceive speech.
de Cheveigne, A. (2003). Time-domain auditory processing of speech. Journal of Phonetics, 31, 547-561.Continue reading