All commercials must comply with the Guidelines for Flashing Images and Regular Patterns in Television in order to reduce the chances of an epileptic seizure being provoked in a photosensitive viewer.
Clearcast carries out this function in-house as part of its vtr approval process
Prof. Graham HardingProfessor Graham Harding graduated in psychology from University College in London, in 1961. He obtained a PhD in EEGs and Psychiatry from Birmingham University and a DSc from the University of Aston. In 1998, he was awarded Honorary Membership of the Royal College of Physicians and in 2004 elected Fellow, for outstanding contributions to medicine. Graham was in 2004, awarded the Grey Walter medal for services to Clinical Neurophysiology.
He established the Clinical Neurophysiology Unit at Aston University in 1963, and has headed it since. He has more than 250 publications in the field of electroencephalography and visual evoked potentials. He is President of the British Society for Clinical Neurophysiology, a Fellow of the British Psychological Society and a Chartered Psychologist. He currently serves on the CIE and ISO committee for image safety. He has delivered numerous named and invited lectures. One of his special areas of interest is photosensitive epilepsy, a subject on which he has published two books and many papers. He has also carried out the largest study of a photosensitive population in the world. Many of these studies have been carried on over a period of 35 years. He is the consultant adviser to Clearcast on problems of photosensitivity and televised material and assisted in the drafting of the ITC Guidelines. He also drafted the guidelines for the Commercial Broadcasters Association of Japan, and NHK (Public Broadcasting Corporation). He has appeared on television programmes about photosensitive epilepsy in many countries. Graham collaborated with Cambridge Research Systems Ltd (CRS) to develop the Harding FPA Flash and Pattern Analyser, which Clearcast uses to test all commercials considered, to ensure compliance with the ITC Guidelines.
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