oddity discrimination tasks biol.

[aaa]

Пожалуйста, помогите перевести.

Выражение встречается в следующем контексте:

On both the landmark and oddity discrimination tasks, we found highly significant differences in learning ability between the young and aged canines.

Заранее спасибо

[kwatts59]

oddity discrimination task = a test to see if you can determine which item does not fit

Example:
Which item is odd.
1. pen
2. pencil
3. crayon
4. monster