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Authors: Oliver P. Dewhirst ; Natalia Angarita-Jaimes ; David M. Simpson ; Robert Allen and Philip L. Newland

Affiliation: University of Southampton, United Kingdom

Keyword(s): Reflex Dynamics, Nonlinear System Identification, Wiener Laguerre.

Related Ontology Subjects/Areas/Topics: Biomedical Engineering ; Biomedical Signal Processing ; Physiological Processes and Bio-Signal Modeling, Non-Linear Dynamics

Abstract: A key feature of the locusts hind leg control system is a reflex loop that uses a stretch sensor, the Femoral Chordotonal organ, to monitor the position and movements of the tibia relative to the femur. A population of non-spiking local interneurons in the metathoracic ganglia receive synaptic inputs from the sensory neurons in the chordotonal organ and indirect inputs from other interneurons. They function to integrate these signals and generate the motor pattern required for coordinated limb movement. Nonlinear Volterra models combined with Gaussian white noise stimulation have, for the first time, been used to characterise the dynamics of this population of interneurons. The results show that the interneurons can be clustered into three groups, those which are position, position/velocity and velocity sensitive.

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Paper citation in several formats:
Dewhirst, O.; Angarita-Jaimes, N.; M. Simpson, D.; Allen, R. and L. Newland, P. (2011). THE DYNAMICS OF LOCUST NON-SPIKING LOCAL INTERNEURONS - Responses to Imposed Limb Movements. In Proceedings of the International Conference on Bio-inspired Systems and Signal Processing (BIOSTEC 2011) - BIOSIGNALS; ISBN 978-989-8425-35-5; ISSN 2184-4305, SciTePress, pages 270-275. DOI: 10.5220/0003168002700275

@conference{biosignals11,
author={Oliver P. Dewhirst. and Natalia Angarita{-}Jaimes. and David {M. Simpson}. and Robert Allen. and Philip {L. Newland}.},
title={THE DYNAMICS OF LOCUST NON-SPIKING LOCAL INTERNEURONS - Responses to Imposed Limb Movements},
booktitle={Proceedings of the International Conference on Bio-inspired Systems and Signal Processing (BIOSTEC 2011) - BIOSIGNALS},
year={2011},
pages={270-275},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0003168002700275},
isbn={978-989-8425-35-5},
issn={2184-4305},
}

TY - CONF

JO - Proceedings of the International Conference on Bio-inspired Systems and Signal Processing (BIOSTEC 2011) - BIOSIGNALS
TI - THE DYNAMICS OF LOCUST NON-SPIKING LOCAL INTERNEURONS - Responses to Imposed Limb Movements
SN - 978-989-8425-35-5
IS - 2184-4305
AU - Dewhirst, O.
AU - Angarita-Jaimes, N.
AU - M. Simpson, D.
AU - Allen, R.
AU - L. Newland, P.
PY - 2011
SP - 270
EP - 275
DO - 10.5220/0003168002700275
PB - SciTePress

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