The pros and cons of brain mapping

At the micro-scale the brain is a mess; a thick tangle of nerve cells connected at synapses. Mapping just a tiny portion of this mess, a few hundred cells, is a huge challenge. You have to wonder if it’s worth the effort. But seeing exactly how brain cells are wired together is giving us new insights into brain function.

The scientists in this video found a new neuron in the retina for detecting movement by combining the mapping of the brain and interpreting the fysiology.