Certain nerve cells in the brain become active whenever they are confronted with different images or the name of a specific person or the identity of an object. They are highly selective and do not ...

A "concept" is a general, abstract idea that the human mind forms about a concrete or abstract object of thought. The term comes from the Latin cum capio: "to grasp together". It is an abstract ...

Scientists have long been intrigued by the surfaces of terrestrial bodies other than Earth that reveal deep similarities beneath their superficially differing volcanic and tectonic histories. A team ...