Off-response: its clinical incidence in very young children

Off-responses to repetitive photic stimulation may be of various shapes. In particular, very young children with respiratory distress showed a typical off-response. This reaction is rather peculiar; it consists of a triphasic, very sharp wave followed by a depolarization of longer duration. The latency is about 200 msec. This off-response seems to be the reaction of an immature brain.