Abstract
Multi-purpose experimental system was designed, which consisted of two microcomputers (control and response measuring devices) with I/O interfaces, a random-access projector (stimulus display device), floppy disk drive (response recording device), and the software programs for driving this equipment. A BASIC program was written (a) to control the input and output, (b) to randomize the stimuli, and (c) to store in floppy disk strage. This program included machine-language programs as a sub-routine for the operation of a microcomputer clock, which regulated output intervals and measured reaction time as well. They were specifically designed for increasing the accuracy of measurement. In fact, with this system, accuracy was improved by 1ms unit.
