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Control of burst proportion and frequency range by drive-dependent modulation of adaptation
KTH, Skolan för datavetenskap och kommunikation (CSC), Beräkningsbiologi, CB.ORCID-id: 0000-0002-0550-0739
1999 (engelsk)Inngår i: Neurocomputing, ISSN 0925-2312, E-ISSN 1872-8286, Vol. 26-27, s. 185-191Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

Factors controlling burst proportion in oscillatory networks are analyzed. This question is motivated by the lamprey swimming motor pattern which, independently on burst frequency, is characterized by a constant burst proportion. We investigate the effect of active modulation of the relative influence of a slower and faster adaptation controlling the depolarized phase. Using Morris–Lecar oscillators, NMDA-dependent oscillations or a network of mutually excitatory neurons, it is shown that the burst proportion can be controlled by increasing what corresponds to adaptation. Oscillations occur over an extended range of background stimulation values, leading to a higher maximal frequency.

sted, utgiver, år, opplag, sider
1999. Vol. 26-27, s. 185-191
Emneord [en]
adaptation; central pattern generator; lamprey; locomotion
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Identifikatorer
URN: urn:nbn:se:kth:diva-58745DOI: 10.1016/S0925-2312(99)00080-6Scopus ID: 2-s2.0-0032833612OAI: oai:DiVA.org:kth-58745DiVA, id: diva2:473925
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NR 20140805

Tilgjengelig fra: 2012-01-08 Laget: 2012-01-08 Sist oppdatert: 2020-03-10bibliografisk kontrollert

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Hellgren Kotaleski, Jeanette

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