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rebound phenomenon

Generally, any phenomenon in which a variable that has been displaced from its normal state by a disturbing influence temporarily deviates from normal in the opposite direction when the disturbing influence is suddenly removed, before finally stabilizing at its normal state, i.e., a phenomenon involving undershoot; e.g., the subsequent hypoglycaemia that may follow injection of glucose, because the initial hyperglycaemia caused excessive secretion of insulin.

rebound phenomenon occurs in retina during its stimulation by light it can be seen in electroretinogram represented by d wave its due to repolarization of first layer of retina again

Synonym: stewart-Holmes sign