Absent-mindedness
Memory effect
Memory lapses that happen because we were not paying attention when something occurred, so it was never stored well in the first place. It often shows up when we act on autopilot or split attention between tasks.
In everyday life
You put your keys down while answering a phone call and later have no idea where they are.
Halfway to work you cannot recall whether you locked the front door, because you did it while thinking through the day's big meeting.
Why your mind does this
Attention and memory are limited, so the brain stores more of what we think about deeply, use actively or expect to need, and less of what we barely noticed or know we can look up. This puts our limited memory where it pays off most.
Its family, in 30 seconds: How it was stored
How to spot it
Watch for moments when your hands are doing one task while your mind is busy with another.
What you can do
Give easily lost items a fixed home, like a bowl by the door for keys, so storing them never depends on attention.
Same family: How it was stored
SourcesSchacter (1999)·Wikipedia