Five styles of attention:
- sustained attention,
- focused attention,
- divided attention.
Focused attention is lodged in the left hemisphere.
Divided attention belongs to both hemispheres, with the right hemisphere more dominant.
Intensity is a dimension of wakefulness:
- alertness makes us responsive to the world;
- sustained attention makes the world continuous and unfragmented;
- vigilance opens us to new and unfamiliar inputs.