detection of m-sequences from spike sequence in neuronal networks
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ID: 240729
2012
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Abstract
In circuit theory, it is well known that a linear feedback shift register (LFSR) circuit generates pseudorandom bit sequences (PRBS), including an M-sequence with the maximum period of length. In this study, we tried to detect M-sequences known as a pseudorandom sequence generated by the LFSR circuit from time series patterns of stimulated action potentials. Stimulated action potentials were recorded from dissociated cultures of hippocampal neurons grown on a multielectrode array. We could find several M-sequences from a 3-stage LFSR circuit (M3). These results show the possibility of assembling LFSR circuits or its equivalent ones in a neuronal network. However, since the M3 pattern was composed of only four spike intervals, the possibility of an accidental detection was not zero. Then, we detected M-sequences from random spike sequences which were not generated from an LFSR circuit and compare the result with the number of M-sequences from the originally observed raster data. As a result, a significant difference was confirmed: a greater number of “0–1” reversed the 3-stage M-sequences occurred than would have accidentally be detected. This result suggests that some LFSR equivalent circuits are assembled in neuronal networks.
| Reference Key |
nishitani2012computationaldetection
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|---|---|
| Authors | ;Yoshi Nishitani;Chie Hosokawa;Yuko Mizuno-Matsumoto;Tomomitsu Miyoshi;Hajime Sawai;Shinichi Tamura |
| Journal | Organic Chemistry Frontiers |
| Year | 2012 |
| DOI |
10.1155/2012/862579
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| URL | |
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