What is 'Selective Attention' (Selektive Aufmerksamkeit) and how does an experienced driver differ from a novice?

1. Novices have perfect selective attention from birth
2. Selective attention means looking only at the radio screen
3. Experienced drivers never look at road signs
4. Experienced drivers selectively filter relevant hazard cues (e.g. pedestrian foot stepping off curb, brake lights three cars ahead) while ignoring irrelevant stimuli (e.g. billboards); novices scan erratically and fixate on irrelevant objects