ABSTRACT
There are four essential features of an electropsychology laboratory for the study of covert processes: sensors, which detect the signals of interest; amplifiers, which modify the signals sensed; readout devices, which display and record the signals; and quantification systems, which render the analog signals into numerical values. Inexpensive recording systems might be purchased from suppliers that deal in used equipment or obtained free from companies like Western Electric, or from “government surplus.” A more effective shielding is especially treated magnetic sheets of metal available from manufacturers. Some signals may not need shielding out at all, such as those sensed in brain wave recording. The signals enter a quantification system that may be on-line, or may be employed at a later time, receiving data stored on magnetic tape on a tape recorder.
