There is not yet a precise understanding of why flashing lights could be used to induce photosensitive migraine and epilepsy or why flashing lights could be used with therapeutic effect.

Most Proteins and enzymes are activated by light. The chemiluminescence arising from protein-substrate reactions influences visual perception which can measured. This can be adapted diagnostically. Each protein-substrate reaction releases biophotons of light, commonly known as autofluorescence or chemiluminescence, the colour being unique to each protein-substrate reaction and the intensity being a measure of the rate of reaction. The degree of activation or deactivation of such reactions is dependent upon the prevailing reaction conditions i.e. the influence of systemic
parameters (pH, temperature, levels of minerals, etc).

Knowledge of the nature and structure of the physiological systems enables a wider understanding of systemic dysfunction and pathology(s). Specific neural (EEG) frequencies can be associated with visual perception. This can be adapted therapeutically i.e. to photostimulate inhibited protein-substrate reactions thereby regulating the function of each physiological system. By such biofeedback technique(s) it may be possible to treat, in a person-specific manner, the dysfunction associated with specific physiological and psychological disorders.