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2 total sentences available.
As the monkeys became more skilled at using their brains to move their virtual arms, researchers saw signs of brain plasticity or neuronal growth, a possible sign the monkeys were incorporating the virtual arms into their own mental image.
Source: tatoeba (11167014)
Nicotine, a stimulant found in tobacco, long used by Native Americans, taught scientists about the existence of our own nicotinic receptors, which influence neuronal excitement.
Source: wiktionary