[…] though Gladnesse, and Griefe, be opposites in Nature; yet they are such Neighbours and Confiners in Arte, that the least touch of a Pensill, will translate a Crying, into a Laughing Face […]

They require a surrounding which keeps them from sinking into apathy through tasks which they are able to solve and duties they can carry out.

The yawning gap in neuroscientists’ understanding of their topic is in the intermediate scale of the brain’s anatomy. Science has a passable knowledge of how individual nerve cells, known as neurons, work. It also knows which visible lobes and ganglia of the brain do what. But how the neurons are organised in these lobes and ganglia remains obscure.

In addition to looking at gene expression, Bozek and her colleagues analyzed levels of metabolites, a diverse group of small molecules that includes sugars, nucleic acids and neurotransmitters. Many metabolites are either necessary for metabolism or produced by it.