In a test of skin conductance responses to unpleasant stimuli, the subjects showed a selective inhibitory mechanism on emotional processing.

Taking them to the surgery for routine checks ensures that they should not associate this with unpleasant stimuli.

It noted the use of aversion therapy - unpleasant stimuli meant to extinguish homosexual arousal - but said such therapy was "controversial."

Any painful or unpleasant stimuli, such as:

How pleasant and unpleasant stimuli combine in different brain regions: odor mixtures.

Also, higher levels of anxiety can over-sensitize the patient to unpleasant stimuli, which would heighten their senses of touch, smell or hearing.

Untruth will bring you unpleasant stimuli.

If you refuse to help, all of you will receive the most unpleasant stimuli until you change your mind.

But he had nothing to lose by talking, and he might at least gain for himself and the others a death free of most unpleasant stimuli.

Negative reinforcement follows the idea that getting rid of an unpleasant stimulus will increase the probability that the behavior will change.