release phenomenon

re·lease phe·nom·e·non

the increased tonus and hyperirritability of muscle-stretch reflexes that occur following damage of the upper portions of the extrapyramidal system.
Farlex Partner Medical Dictionary © Farlex 2012
References in periodicals archive ?
Had we only dealt with phenomenal visual experiences after acquired blindness, the problem would not have been substantial; we know that, as a release phenomenon, "phantom vision" occurs rather frequently after either peripheral or central blindness (Schultz & Melzack, 1991).