TY - CONF ID - upm21544 PB - Institute of Electrical and Electronics Engineers TI - A model of amacrine and ganglion cells for optical information processing N2 - Based on a previously reported logic cell structure (see SPIE, vol. 2038, p. 67-77, 1993), the two types of cells present at the inner and ganglion cell layers of the vertebrate retina and their intracellular response, as well as their connections with each other, have been simulated. These cells are amacrines and ganglion cells. The main scheme of the authors' configuration is shown in a figure. These two types of cells, as well as some of their possible interconnections, have been implemented with the authors' previously reported optical-processing element. As it has been shown, the authors' logic structure is able to process two optical input binary signals, being the output two logical functions. Moreover, if a delayed feedback from one of the two possible outputs to one or both of the inputs is introduced, a very different behaviour is obtained. Depending on the value of the time delay, an oscillatory output can be obtained from a constant optical input signal. Period and length pulses are dependent on delay values, both external and internal, as well as on other control signals. Moreover, a chaotic behaviour can be obtained too under certain conditions M2 - Boston, MA KW - Delay KW - Information processing KW - Lighting KW - Logic KW - Neurons Optical feedback SP - 155 UR - http://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=586940 VL - 1 AV - public A1 - Martín Pereda, José Antonio A1 - González Marcos, Ana Y1 - 1994/// SN - 0-7803-1470-0 EP - 156 CY - Boston, Massachusetts. T2 - A model of amacrine and ganglion cells for optical information processing ER -