The left brain vs. right brain myth - Elizabeth Waters
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How did the brain become the brain? Evolution of the cortex led to humans and other animals having more complex behaviors. This article: Evolution of the human brain: when bigger is better will give your more insight into how the brain evolved.
Where are we now in our understanding of differences in the left and right side of the brain? The two papers here and here discuss recent research on left-right brain lateralization, including a meta-analysis of research on left brain vs right brain studies and supporting the lateralization of language to the left side of the brain.
Wonder what neuroscientists are studying today? Check out the blogs at Allen Institute for Brain Science and BrainFacts.org.
TED-Ed has more lessons about the brain:
The great brain debate - Ted Altschuler
Could your brain repair itself? - Ralitsa Petrova
How stress affects your brain - Madhumita Murgia
How do drugs affect the brain? - Sara Garofalo
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