On a method of storing information: II. A further study of model properties

Some restrictions governing the construction and use of a model for storing and recalling information, described in a previous paper by the author (Bull. Math. Biophysics,22, 139–168, 1960), are relaxed. In particular, the value of the critical state at which cell synapses fired when one pulse was fed to them instead of two is allowed to vary; the output gate's threshold is allowed to take values that may block the signal from a memory trace made by a single insertion of a message; messages may be fed in more than once; the proportions of each of the four feedback pulse patterns may be different from one-quarter of the total and not all the cells necessarily receive a particular input pulse.