Definition
The mental process of focusing on one specific source of information while filtering out other competing inputs. In aviation human factors, it refers to a pilot's ability to concentrate on the most important task, instrument, or signal at a given moment while still remaining aware enough to detect other relevant cues.
Plain English
Choosing what to pay attention to, and tuning out the rest, at least for the moment.
Context Anchor
Seen in human factors discussions about cockpit workload, scanning, radio calls, distractions, and missed cues.
Derivation
From Latin 'selectus' (chosen) and 'attendere' (to stretch toward, to attend). The phrase literally means 'chosen focus' -- deliberately directing the mind toward one thing.
Why Pilots Care
Selective attention is necessary in a busy cockpit, but it has a cost: while focused on one thing, a pilot can miss something important elsewhere. Many accidents involve a crew so focused on one problem (a warning light, a radio call, a checklist) that they failed to notice altitude loss, terrain, or traffic. Knowing how selective attention works helps pilots manage it deliberately rather than letting it happen by accident.
Analogy
Selective attention is like shining a flashlight in a dark room. The spot you aim at becomes clear, but other things in the room are harder to notice.
Intuition Check
Selective attention does not mean a pilot is careless or ignoring things on purpose. It means the brain has limited focus and gives priority to some information over other information.
Example Sentence 1
During the approach, the captain used selective attention to focus on the glideslope while the first officer monitored airspeed and altitude.
Example Sentence 2
The instructor emphasized selective attention when the student became distracted by a minor gauge fluctuation instead of flying the approach.