MRI scans of the ventrolateral frontal cortex of 25 human subjects were compared by dividing the cortex into 12 separate regions of interest. The objective of the research is to better understand the connections in this area of the brain to potentially help treat neurological diseases or behavioral conditions that are strongly affected by this area. The ventrolateral frontal cortex is known to be an important area for language and other cognitive processes such as decision-making. Researchers at the University of Oxford compared the ventrolateral frontal cortex regions of the brains of humans and macaque monkeys and found striking similarities in many areas. Fortunately, we humans have some differences as well. That may be a bit extreme, but according to results recently published in Neuron, we humans have an unexpectedly high degree of similarity with monkeys in the arrangement of the areas of our brain involved with language and thought processes. Do you remember all those times as a child when you were frustrated with your big brother and you called him a monkey-brain? It turns out you may have been partially right after all.
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