aftersensation

American Heritage® Dictionary of the English Language, Fourth Edition

1. n. A sensory impression, such as an afterimage or aftertaste, that persists after the stimulus has ceased.

Century Dictionary and Cyclopedia

1. n. In psychology: An after-image.
2. n. A secondary or consequent sensation: as, the after-sensation of pain which follows the sensation of pressure when the skin is lightly tapped with a needle.

GNU Webster's 1913

1. n. (Psychol.) A sensation or sense impression following the removal of a stimulus producing a primary sensation, and reproducing the primary sensation in positive, negative, or complementary form. The aftersensation may be continuous with the primary sensation or follow it after an interval.

WordNet 3.0

1. n. an image (usually a negative image) that persists after stimulation has ceased