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A low cost timing device for increasing the versatility of physiological stimulators

par Cerf, Jean ;Van Dale, J.;Cerf, Emilie
Référence Physiology & behavior, 16, 4, page (509-512)
Publication Publié, 1976

Article révisé par les pairs

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Résumé :

A versatile and inexpensive timing suitable for driving standard stimulators and associated equipment used in neurophysiological experiments is described. Using this device as a building block, systems generating relatively complex stimulation patterns may easily be assembled. It delivers, as required, a square gate pulse of variable duration (1 msec to 2 min), a brief trigger pulse with an adjustable delay (1 msec to 2 min), or repeating pulses at variable frequency (0.005 to 600 Hz). The output voltage is adequate for triggering or modulating commercial stimulators, including older but still widely used vacuum tube models. The device itself can be controlled by external signals.