A "discrimination task" refers to a situation or activity where one needs to recognize or differentiate between different things or categories based on certain characteristics or qualities. Full definition
In addition to the jumping exercises, the dog must now also perform scent discrimination tasks. (italiangreyhound.org)
Title: The pharmacological sensitivity of a touchscreen - based visual discrimination task in the rat using simple and perceptually challenging stimuli Author: J. C. Talpos et al.. (newmeds-europe.com)
Diogo Peixoto Postdoc in Bill Newsome's lab, Stanford University Real - time decoding and perturbation of decision states during a perceptual discrimination task (simonsfoundation.org)