dorsal/arxiv
View SchemaA structural and a functional aspect of stable information processing by the brain
| Authors | Kaushik Majumdar |
|---|---|
| Categories | |
| ArXiv ID | q-bio/0701034 |
| URL | https://arxiv.org/abs/q-bio/0701034 |
Abstract
In this paper a model of neural circuit in the brain has been proposed which is composed of cyclic sub-circuits. A big loop has been defined to be consisting of a feed forward path from the sensory neurons to the highest processing area of the brain and feed back paths from that region back up to close to the same sensory neurons. It has been mathematically shown how some smaller cycles can amplify signal. A big loop processes information by contrast and amplify principle. It has been assumed that the spike train coming out of a firing neuron encodes all the information produced by it as output. This information over a period of time can be extracted by a Fourier transform. The Fourier coefficients arranged in a vector form will uniquely represent the neural spike train over a period of time. The information emanating out of all the neurons in a given neural circuit over a period of time will be represented by a collection of points in a multidimensional vector space. This cluster of points represents the functional or behavioral form of the neural circuit. It has been proposed that a particular cluster of vectors as the representation of a new behavior is chosen by the brain interactively with respect to the memory stored in that circuit and the synaptic plasticity of the circuit. It has been proposed that in this situation a Coulomb force like expression governs the dynamics of functioning of the circuit and stability of the system is reached at the minimum of all the minima of a potential function derived from the force like expression. The calculations have been done with respect to a pseudometric defined in a multidimensional vector space.
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"abstract": "In this paper a model of neural circuit in the brain has been proposed which\nis composed of cyclic sub-circuits. A big loop has been defined to be\nconsisting of a feed forward path from the sensory neurons to the highest\nprocessing area of the brain and feed back paths from that region back up to\nclose to the same sensory neurons. It has been mathematically shown how some\nsmaller cycles can amplify signal. A big loop processes information by contrast\nand amplify principle. It has been assumed that the spike train coming out of a\nfiring neuron encodes all the information produced by it as output. This\ninformation over a period of time can be extracted by a Fourier transform. The\nFourier coefficients arranged in a vector form will uniquely represent the\nneural spike train over a period of time. The information emanating out of all\nthe neurons in a given neural circuit over a period of time will be represented\nby a collection of points in a multidimensional vector space. This cluster of\npoints represents the functional or behavioral form of the neural circuit. It\nhas been proposed that a particular cluster of vectors as the representation of\na new behavior is chosen by the brain interactively with respect to the memory\nstored in that circuit and the synaptic plasticity of the circuit. It has been\nproposed that in this situation a Coulomb force like expression governs the\ndynamics of functioning of the circuit and stability of the system is reached\nat the minimum of all the minima of a potential function derived from the force\nlike expression. The calculations have been done with respect to a pseudometric\ndefined in a multidimensional vector space.",
"arxiv_id": "q-bio/0701034",
"authors": [
"Kaushik Majumdar"
],
"categories": [
"q-bio.NC",
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"title": "A structural and a functional aspect of stable information processing by the brain",
"url": "https://arxiv.org/abs/q-bio/0701034"
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