American English takes a slightly different approach to the agreement of verbs with collective nouns. There is a very strong preference for the use of singular verbs with such nouns, so in American English you are much more likely to see, for example:
By Dr Ananya Mandal, MD. The human brain is divided into two hemispheres. The left hemisphere is the logical brain and is involved in language and analysis and the right hemisphere is the creative brain, involved in daydreaming and imagination. The left hemisphere controls the right side of the body while the right hemisphere controls the left side.
The left hemisphere is largely responsible for language. The right hemisphere is important for interpreting visual cues and spatial processing. The cerebrum controls coordination, temperature, sight, sound, reasoning, learning, and emotions. The space between the two hemispheres is called the great longitudinal fissure. The corpus callosum connects the two sides and transfers signals from one side of the brain to the other. The cerebrum has billions of neurons and glia that form the cerebral cortex, its outermost layer.