Application to identify instances of blunted affect
Development approach: Machine-learning.
Classification of past or present symptom: Both.
Classes produced: Positive
The output includes-
Positive annotations include:
“his affect remains very blunted”,
“objectively flattened affect”,
“states that ZZZZZ continues to appear flat in affect”
Exclude Negative annotations:
“incongruent affect”,
“stable affect”,
“no blunted affect”
Exclude Unknown annotations:
“typical symptoms include blunted affect”,
“slightly flat affect”,
“relative shows flat affect” Definitions: Search term(s):
affect
blunt [0 to 2 words in between] affect
flat [0 to 2 words in between] affect
restrict [ 0 to 2 words in between affectaffect [0 to 2 words in between] blunt
affect [0 to 2 words in between] flat
Affect* [0 to 2 words in between] restrict
