title: Hopfield model with self-coupling.
abstract: We have studied analytically the retrieval performance of a Hopfield model in the presence of self-coupling in the synaptic matrix. We find, contrary to expectations from some earlier studies based on the counting of fixed points, that negative self-coupling causes deterioration in the retrieval performance of the network. On the other hand, it is possible to enhance the retrieval performance by having a positive self-coupling of appropriate magnitude.
authors.affiliation: Laser Physics Division, Centre for Advanced Technology, Indore 452013, India.
authors.forename: M P
authors.initials: MP
authors.lastname: Singh
mesh_terms: D055592:Biophysical Phenomena; D001703:Biophysics; D008568:Memory / Q000502:physiology; D008959:Models, Neurological; D009415:Nerve Net / Q000502:physiology*