What type of fibers conduct impulses between the two hemispheres of the brain?

The type of fibers that conduct impulses between the two hemispheres of the brain are known as commissural fibers. These fibers are crucial for interhemispheric communication, allowing for the transfer of information and coordination of activity between the left and right sides of the brain. The most prominent commissural fiber is the corpus callosum, which connects corresponding areas of the two hemispheres and facilitates functions that require collaboration between them.

Understanding this concept is important as it highlights how different types of nerve fibers are specialized for distinct functions within the nervous system. While association fibers connect different regions within the same hemisphere, and projection fibers connect the brain to the spinal cord or vice versa, commissural fibers specifically link the two hemispheres, thereby playing a vital role in the integration of cognitive and sensory processes across both sides of the brain.