A model of the cochlea is developed whereby the motion of the basilar membrane due to sound pressure in the scala media creates, through the pivotal motion of the pillars of Corti, modulated pressure on the fluid in the inner sulcus. This modulated pressure causes fluid to flow through the tectorial gap at selected longitudinal positions along the basilar membrane causing excitation or inhibition of the hair cell activity depending upon the direction of fluid flow. Specific functional relationships are developed for a two component model composed of a resonant and a nonresonant region. Relevant experimental data show good agreement with the predictions of the model.

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Guild (1932) stated the general requirements for processing signals in color vision system and a digital format of his paradigm is developed in this paper. The disk structure generates the digital receptor pulse. The input modalities form sets, linked by intersections, joins, and complement junctions. The synapses are elements in these junctions. Complex synapses form junctions to create Boolean logic processing. A computer program using these Boolean logic functions calculates: Light and dark adaptation responses; Color matching and spectral coordinate functions; Chromatic adaptation; Color shift responses; and Dynamic neural responses. These calculations compare favorably with the experimental data. The processing criteria for signals in the vision system are given by Guild (1932). The analysis in this paper uses his criteria to develop a model of the vision system. A computer program simulates the digital processing of signals from the external photon source to the neural output signals from the ganglion cells in the inner-plexiform layer. The responses are compared with the responses of actual vision systems.

Guild (1932) stated the general requirements for processing signals in color vision system and a digital format of his paradigm is developed in this paper. The disk structure generates the digital receptor pulse. The input modalities form sets, linked by intersections, joins, and complement junctions. The synapses are elements in these junctions. Complex synapses form complex junctions to create Boolean logic processing. A computer program using these Boolean logic functions calculates: Light and dark adaptation responses; Color matching and spectral coordinate functions; Chromatic adaptation and color shift responses; and dynamic neural responses. These calculations compare favorably with the experimental data.

A three dimensional model of the cochlea is developed that pumps activated fluid through the tectorial gap of the organ of Corti. The activated fluid generates neural pulses at specific locations along the cochlear duct which are related to specific simple tonal inputs. A computer program, based on an electrical analog of the model, calculates matrices of the transfer factors for section elements in the model and for a range of sound input frequencies. Using these matrices, the program calculates the neural output for a variety of complex sound inputs into the model and compares the calculated output to experimental measurements on actual cochlea. Differences and similarities between the audition model and a proposed vision model are discussed.