Graded limb targeting in an insect is caused by the shift of a single movement pattern

Journal of Neurophysiology
Volker Dürr, Thomas Matheson

Abstract

Grooming responses are movements of a multi-jointed limb that are targeted toward a stimulus site on the body. To be successful, they require a continuous transformation of stimulus location into a corresponding motor pattern or selection and blending of a subset of cardinal motor patterns. Tactile stimulation of one forewing of a locust elicits characteristic grooming movements of the ipsilateral hind leg. An initial targeted trajectory that moves the tarsus toward the site of stimulation is followed by a cyclic trajectory in the region of the stimulus. We have analyzed both components of this behavior to quantify the relative effects of somatotopic stimulus position and leg start posture on three parameters: initial movement direction, accuracy, and grooming distribution. Accuracy and grooming distribution were significantly affected by the stimulus location but were not influenced by the initial leg posture. Both cues systematically shifted the initial movement direction from the onset of the response. The subsequent cyclic component of grooming movements forms a behavioral continuum with no clustering in joint angle space. We therefore conclude that forewing grooming in locusts is generated by a single movement pattern that...Continue Reading

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Citations

Jul 11, 2006·Journal of Comparative Physiology. A, Neuroethology, Sensory, Neural, and Behavioral Physiology·Michael Schumm, Holk Cruse
Jul 25, 2007·Biological cybernetics·Hugo Rosano, Barbara Webb
Mar 17, 2004·Journal of Neuroscience Methods·Jure ZakotnikVolker Dürr
Dec 7, 2006·Philosophical Transactions. Series A, Mathematical, Physical, and Engineering Sciences·Holk CruseJosef Schmitz
Dec 20, 2007·Arthropod Structure & Development·Sasha ZillAnsgar Büschges
Dec 20, 2007·Arthropod Structure & Development·Volker DürrHolk Cruse
Sep 8, 2015·ELife·Stefanie HampelAndrew M Seeds
Nov 9, 2005·Current Opinion in Neurobiology·Tamar Flash, Binyamin Hochner
Jun 28, 2011·Current Opinion in Neurobiology·Stephen J Huston, Vivek Jayaraman
Oct 26, 2016·Current Biology : CB·John C Tuthill, Rachel I Wilson
Feb 18, 2017·ELife·Olivia SchwarzJan Pielage
Nov 23, 2007·Journal of Neurophysiology·Keri L PageThomas Matheson
Jan 9, 2019·Frontiers in Computational Neuroscience·Volker Dürr, Malte Schilling
Nov 12, 2019·Frontiers in Neurorobotics·Volker DürrAxel Schneider
Jan 1, 2013·Insects·Marianna ZhukovskayaBrian T Forschler
May 5, 2009·The Journal of Experimental Biology·C M HarleyR E Ritzmann
Jul 12, 2014·The Journal of Experimental Biology·Leslie M TheunissenVolker Dürr
Aug 12, 2003·The Journal of Experimental Biology·Tom Matheson, Volker Dürr
Jun 18, 2004·The Journal of Experimental Biology·Keri L Page, Thomas Matheson

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