CONCEPTUAL CIRCUIT MODELS OF NEURONS

Conceptual circuit models of neurons.

Electronic circuit analogues of biological membranes are presented, by which the passive channels are modeled as parallel and serial combinations of resistors (Ohmic conductors) and diffusors (negative non-Ohmic conductors), and the active channels of the one-way ion pumps are modeled as one-way inductors. We show that our simple analog models can reproduce known phenomena of membrane excitabil...

Synaptic circuit organization of motor corticothalamic neurons.

Corticothalamic (CT) neurons in layer 6 constitute a large but enigmatic class of cortical projection neurons. How they are integrated into intracortical and thalamo-cortico-thalamic circuits is incompletely understood, especially outside of sensory cortex. Here, we investigated CT circuits in mouse forelimb motor cortex (M1) using multiple circuit-analysis methods. Stimulating and recording fr...

Programming Conceptual Models Using Conceptual Graph Modules

This article introduces some basic functions and architectural issues for building a tool for programming conceptual models for explainable expert systems. The programming tool is independent from a particular problem class or problem solving method. Our work is based on the KADS knowledge engineering methodology which results in a conceptual model, and we use Sowa ́s Conceptual Graphs (CG) as a...

System Identification of Optic-Flow Processing Neurons in the Fly: Single Cell and Small Circuit Models

Mechanical Models of Chua's Circuit

Chua’s circuit (see Fig. 1) is one of the simplest physical models that has been widely investigated by mathematical, numerical and experimental methods. One of the main attractions of Chua’s circuit is that it can be easily built with less than a dozen standard circuit components, and has often been referred to as the poor man’s chaos generator. A mathematical analysis of the global unfolding ...