arXiv subjects

Jacek Bialowas

Publications and source records attributed to Jacek Bialowas.

2 recordsLinked to original sources

arXiv2017

Topography of the nuclei and distribution of Acetylcholinesterase activity in the septum of the telencephalon in man

Distribution of acetylcholinesterase (AChE) activity in the septum of the telencephalon in man was studied in 15 human brains using the acetylthiocholine method. Highest activity of AChE was found in the nucleus of the diagonal band and nucleus accumbens, and lowest in the Lateral nucleus. Comparison of histochemical results with cellular structure and wi.th the course of fibers showed absence in man of some of the nuclei described in animals such as the anterior medial nucleus, triangular nucleus, and marked reduction of the septo-hippocampal nucleus and fimbriate nucleus. Areas of the septum showing AChE activity were divided into an anterior and posterior system. The applicability to man of some neurophysiologic findings in animals is discussed.

q-bio.NC↗

arXiv2017

Firing Cell: An Artificial Neuron with a Simulation of Long-Term-Potentiation-Related Memory

We propose a computational model of neuron, called firing cell (FC), properties of which cover such phenomena as attenuation of receptors for external stimuli, delay and decay of postsynaptic potentials, modification of internal weights due to propagation of postsynaptic potentials through the dendrite, modification of properties of the analog memory for each input due to a pattern of short-time synaptic potentiation or long-time synaptic potentiation (LTP), output-spike generation when the sum of all inputs exceeds a threshold, and refraction. The cell may take one of the three forms: excitatory, inhibitory, and receptory. The computer simulations showed that, depending on the phase of input signals, the artificial neuron's output frequency may demonstrate various chaotic behaviors.

cs.NE↗