Knock knock knocking on rhythm's neural doors

ania State, and ATR Computational Neuroscience Laboratories in Kyoto, Japan showed that control mechanisms for the two types of movement are quite drastically distinct.

The study monitored eleven volunteer subjects, who performed a simple flex of the wrist while undergoing fMRI monitoring. A visual signal instructed the subjects to do one of three actions: rhythm -- flexing the wrist repeatedly at a comfortable pace, back and forth; discrete -- flexing the wrist, pausing, flexing it back, and rest.

Another set of experiments had the timing of the rhythm dictated to the subjects by a metronome.

The resulting fMRI records displayed far-reaching differences. Rhythmic activity created activity only in the motor areas of the opposite brain hemisphere and in the cerebellum.

Discrete activity was much more extensive, including numerous areas on both sides of the brain, including "planning areas" not directly connected with motor execution.

The difference held up even when careful controls made sure that the amount of actual activity the number of up and down flexes, and their velocity was the same.

"We believe that these results provide strong evidence to refute the hypothesis that rhythmic movement is generated with the help of the discrete movement system," the authors wrote.

However, the opposite is not the case: the authors find that "discrete movement could indeed be generated with the help of the rhythmic movement system."

"What our results indicate is that we really deal with two very separate systems in movement," says Schaal. "There is an automatic system that, literally, functions without any thought; and a separate cognitive system that orchestrates more complex movement.

And music? "Computational neuroscientist theorize that rhythmic movements are generated from oscillator circuits in the brain, and it may be that these inherently rhythmic neural systems make it to easy for us to sw

Contact: Eric Mankin
University of Southern California

Page: 1 2 3

Related biology news :

1. Knock out rose receives Texas superstar and earthkind designation
2. Knockout research eases study of plant gene functions
3. Knocking the Sox off early mammalian development
4. Knocking out SHIP gene improves success of allogeneic bone marrow transplants in mice
5. Knockout of cav-1 protein causes loss of a cellular organelle
6. Knockout mouse may lead to major understanding of human kidney disorder
7. The Origins Of Hereditary Breast Cancer -- Studies With Knock-Out Mice Reveal Underlying Mechanisms
8. Knockout Mouse Reveals Genetic Mechanism In Defective Mammalian Ear Development
9. Gene Knockout Prolongs Ovarian Lifespan In Mice
10. Vertex Pharmaceuticals/Yale Research Team Uses Gene Knockout Mice To Establish Role Of Caspase-9 In Neuronal Cell Death Pathway
11. Defects In Embryonic Development In Lunatic Fringe Knockout Mice

Post Your Comments:

(Date:6/4/2019)... (PRWEB) , ... June 04, 2019 , ... ... today announced the appointment of Susan Murphy as the new President of Molecular ... Sciences?owned by Molecular Devices’ parent company, Danaher Corporation. , Since joining Molecular Devices ...
(Date:6/1/2019)... ... May 31, 2019 , ... ... & Rosati recently invested in BioFactura’s $6M Series B Financing Round. , ... value-added institutional investors who bring significant financial and business resources to bear as ...
(Date:5/31/2019)... ... May 31, 2019 , ... The OilComm ... Houston, TX, announced today that Ben Reiter, Senior Writer at Sports Illustrated and ... October 3rd.     , Reiter predicted the Houston Astros would win the MLB championship ...
Breaking Biology News(10 mins):
(Date:5/31/2019)... ... May 30, 2019 , ... A ... an efficient delivery system for the sustained release of human placental stem cell ... system was able to deliver CM into the injured kidney, where it helped ...
(Date:5/15/2019)... ... May 16, 2019 , ... Emulsifiers are the ... and beverage products rely on these ingredients to create stable quality food that ... This paradigm shift triggers food formulators to seek out alternatives for starches, gums ...
(Date:5/7/2019)... ... May 06, 2019 , ... ... for the growing number of repositories being asked to store cellular products ... the team of contributors who are world leaders, who have shared their expertise ...
(Date:5/2/2019)... ... April 30, 2019 , ... The centuries old practice of brewing beer thrives ... craft breweries, and even home brewing clubs scattered across the nation. , But ... when mastered can produce a superb product. Students at South Dakota School of ...
Breaking Biology Technology:
Cached News: