A brain scan may reveal the neural signs of depression, but a Beethoven symphony reveals what that depression feels like. Both perspectives are neces… - Eric Kandel

Unlike vision, touch, or smell, which are prewired and based on Kantian a priori knowledge, the spatial map presents us with a new type of representation, one based on a combination of a priori knowledge and learning. The general capability for forming spatial maps is built into the mind, but the particular map is not. Unlike neurons in a sensory system, place cells are not switched on by sensory stimulation. Their collective activity represents the location where the animal thinks it is.

In Vienna, Modernism had three main characteristics. The first was the new view of the human mind as being largely irrational by nature. ...they questioned what constitutes reality, what lies below the surface appearances of people, objects, and events. ...They discovered that ...people harbor not only unconscious erotic feelings, but also unconscious aggressive impulses that are directed against themselves as well as against others. Freud later called these dark impulses the death instinct.

The intellectual life of turn-of-the-century Vienna is in my blood: my heart beats in three-quarter time.