Roleset perturb.01 Verbnet Class: 1 "disturb, upset":

Roles:

Arg0:causer of perturbation


Arg1:perturbed entity

Examples:

person: ns tense: past aspect: ns voice: active form: full


the one example (-)
The bursts often occur, they said, after they ``perturbed'' the experiments by raising or lowering the amount of electric current being applied, or switching the current off and on.
Arg0:	they
REL:	perturbed
Arg1:	the experiments
ArgM-MNR:	by raising or lowering the amount of electric current being applied, or switching the current off and on

This verb is only marginally a member of class 31.1, since it rarely expresses and emotional state.