Program Documentation for the Bi-Modal Short-Term Recognition Memory Program.
IBM FEDERAL SYSTEMS DIV OWEGO N Y
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The Bi-Modal Short-Term Recognition Memory BMSTRM program provides a capability for measuring human reaction time and error rate for probe stimuli which are to be recognized in relation to a memory set that is presented prior to each trial. The experiment is conducted using either visual stimuli presented on an IBM 2250 Display Unit, or stimuli generated by laboratory equipment, or both. The visual stimuli can be any set of visual symbols that can be constructed from line segments. The user may specify the starting and ending coordinates for up to 12 line segments when defining each of 40 symbols. In addition, the program can control 10 electrical relay closures in equipment external to the data processing set. This allows control of unique stimuli such as auditory tone stimuli. The program, via parametric input, can control the stimulus duration, the inter-stimulus time interval, the inter-trial time interval, and the time delay between start switch initiation and presentation of the first stimulus. The program was written for an IBM System370, Model 155 computer and employs the IBM 2250-3 Display Unit for visual symbol presentation and the IBM 1827 Data Control Unit for control of stimuli presentation by external laboratory equipment. Author
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