Читать книгу EEG Signal Processing and Machine Learning - Saeid Sanei - Страница 58

Mahowald et al. [61] used electronic neuron models or neuron‐like circuits as processing elements for electronic computers, called neurocomputers. Two examples of these models are as follows. The electronic neuron model developed by [62] is realized with integrated circuit technology. The circuit includes one neuron with eight synapses. The chip area of the integrated circuit is 4.5 × 5 mm². The array contains about 200 NPN and 100 PNP transistors, and about 200 of them are used. In 1991, Mahowald and Douglas [63] published an integrated circuit realization of electronic neuron model. The model was realized with complementary metal oxide semiconductor (CMOS) circuits using very large‐scale integrated (VLSI) technology. Their model accurately simulates the spikes of a neocortical neuron. The power dissipation of the circuit is 60 μW, and it occupies less than 0.1 mm². It is estimated that 100–200 such neurons could be fabricated on a 1 cm × 1 cm die.