1 . People who play drums regularly for years differ from unmusical people in their brain structure and function. The results of a study by researchers from Bochum suggest that they have fewer, but thicker fibers in the main connecting tract between the brain hemispheres(半球). In addition, their motor brain areas are organized more efficiently. This is the conclusion drawn by a research team headed by Dr. Lara. It was published in the journal Brain and Behavior, online on 4 December 2019.
The researchers were interested in drummers because their movement control far surpasses that of untrained people. "Most people can only perform fine motor tasks with one hand and have problems playing different rhythms with both hands at the same time," explains Lara, "Drummers can do things that are impossible for untrained people."
The team intended to gain new insights into the organization of complex motor processes in the brain by identifying the changes in the brain caused by this training. The researchers tested 20 professional drummers who have played their instrument for an average of 17 years and currently practice for more than ten hours per week. They examined them using various MRI imaging techniques that provide insights into the structure and function of the brain. They then compared the data with measurements of 24 unmusical control subjects. Both groups had to play drums to test their abilities and were then examined in the MRI scanner.
Drummers presented clear differences in the front part of the corpus callosum(胼胝体)responsible for motor planning. The data indicated that the drummers had fewer but thicker fibers in this important connecting tract. This allows musicians to exchange information between the hemispheres more quickly than the controls.
Although drummers might be good at motor coordination, they are less active in motor tasks than that of control subjects. This phenomenon indicates that a more efficient brain organization in the areas leads to less activation in professionals.
1. Which has the closest meaning with the underlined word in Paragraph 2?| A．Correspond with. | B．Go beyond | C．Differ from. | D．Fall behind. |
| A．By analyzing previous study. |
| B．By organizing complex motor tasks. |
| C．By testing their abilities and scanning the brains. |
| D．By comparing amateur drummers and unmusical people. |
| A．They are more active in motor tasks. |
| B．They can play rhythms more quickly. |
| C．They have better imagination and insights. |
| D．They have more efficient brain organization. |
| A．Playing drums changes the brain. |
| B．Playing drums can be trained. |
| C．Playing music makes you active. |
| D．Playing music brings benefits. |
