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  • Title: The application of cross-point switch arrays as input selector switch devices for multi-channel electrophysiological experiments.
    Author: Szabó I, Máthé K, Tóth A, Czurkó A.
    Journal: J Neurosci Methods; 2001 Oct 15; 111(1):75-81. PubMed ID: 11574122.
    Abstract:
    Integrated circuits (ICs) containing cross-point switch arrays were applied to create analog input selector switch devices for multi-channel electrophysiological experiments. The described analog input selector switch devices make it possible to connect to the main amplifier's inputs those microelectrode and preamplifier output wires that yield unit discharges of acceptable shape and amplitude, or yield other kind of acceptable electrophysiological signals (EEG, EP). This kind of selector allows to use higher number of preamplifier channels and to ignore the input channels without adequate signals or the channels with noisy inputs. No manual switching is required, as the work is done by computer controlled switches. The switch positions can be saved and reloaded at the next experimental session through an I/O port (e.g. the parallel port) of the computer.
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