Mental filter
Fixing on one negative detail and dwelling on it until it colours the whole picture. Typical sentence: ‘The presentation was a disaster’, after one awkward question among twenty good ones.
What drives it
Attention goes to threat by default; the filter keeps it there so the danger isn’t repeated. In depression it both fits and feeds a bleak view.
How it shows
Work
After a review with nine strengths and one development point, talks only about the point. Remembers the single angry client email from a successful launch. Can recite every criticism they’ve ever received.
Relationships
A good holiday remembered for one argument. Fixates on the one thing a partner forgot rather than the ten they did.
Self
Replay a day and notice whether one moment takes up most of the memory. Ask yourself what else happened, and notice the effort it takes to answer.
What tells it apart
Negativity bias: Negativity bias is a universal weighting of bad over good; the mental filter is a habitual, person-specific narrowing that leaves the good almost absent from recall.
Rumination and worry: Rumination is the repetitive process; the filter decides what gets ruminated on. A filterer may not dwell for long but still recalls only the negative.
A test
Ask for a full account of the event, good and bad; a filterer has to be prompted for the positives and is often surprised by them.
Questions to carry
- Asked for a full account of the event, how much of the good has to be prompted out?
- Which one awkward moment has come to stand for a whole day I otherwise liked?
How strong the research is
moderate. Well supported indirectly by research on attention and memory biases in depression, less so as a distinct named distortion.
Where it comes from
Aaron T. Beck, 1967 (selective abstraction); David Burns, 1980
On the family tree: Aaron Beck