ERL—A language for implementing evoked response and psychophysiological experiments

Evoked Response Language (ERL) is a high-level language for implementing psychophysiological experiments with emphasis on signal averaging techniques. It allows the E to specify, in English-like statements, a sequence of auditory and visual stimuli and to collect or average associated physiological data. The language can be learned quickly without the need for knowledge of machine language programming. Programs can be easily composed and promptly tested. ERL has been running in our laboratory on a classic LINC computer since the spring of 1970. Expanded versions of ERL are being planned for the PDP-12 and SEL 810B computers.