If discrimination is taken in a narrowly intellectual or propositional sense, some sensory apprehensions may be excluded. If taken broadly as determinate awareness, sensory cognition can be included. The scope of the definition thus depends upon the technical meanings of its key terms.
Someone feels the heat of fire: that is sensory apprehension. The person then judges “this fire is hot”: that is a proposition. The two are related but not structurally identical. A sound assessment of the proposed definition requires establishing which kinds of sensation, conception, and judgment its language is meant to capture.