Active tactile exploration for adaptive locomotion in the stick insect

Schütz C, Dürr V (2011)
Phil.Trans.R.Soc.Lond. B 366(1581): 2996-3005.

Zeitschriftenaufsatz | Veröffentlicht | Englisch
 
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Abstract / Bemerkung
Insects carry a pair of actively moveable feelers that supply the animal with a range of multimodal information. The antennae of the stick insect Carausius morosus are straight and of nearly the same length as the legs, making them ideal probes for near-range exploration. Indeed, stick insects, like many other insects, use antennal contact information for the adaptive control of locomotion, for example in climbing. Moreover, the active exploratory movement pattern of the antennae is context-dependent. The first objective of the present study is to reveal the significance of antennal contact information for the efficient initiation of climbing. This is done by means of kinematic analysis of freely walking animals as they undergo a tactually elicited transition from walking to climbing. The main findings are that fast, tactually elicited re-targeting movements may occur during an ongoing swing movement, and that the height of the last antennal contact prior to leg contact largely predicts the height of the first leg contact. The second objective is to understand the context-dependent adaptation of the antennal movement pattern in response to tactile contact. We show that the cycle frequency of both antennal joints increases after obstacle contact. Furthermore, inter-joint coupling switches distinctly upon tactile contact, revealing a simple mechanism for context-dependent adaptation.
Stichworte
inter-joint coordination; reaching movement; tactile sensing
Erscheinungsjahr
2011
Zeitschriftentitel
Phil.Trans.R.Soc.Lond. B
Band
366
Ausgabe
1581
Seite(n)
2996-3005
ISSN
0962-8436
eISSN
1471-2970
Page URI
https://pub.uni-bielefeld.de/record/2142335

Zitieren

Schütz C, Dürr V. Active tactile exploration for adaptive locomotion in the stick insect. Phil.Trans.R.Soc.Lond. B. 2011;366(1581):2996-3005.
Schütz, C., & Dürr, V. (2011). Active tactile exploration for adaptive locomotion in the stick insect. Phil.Trans.R.Soc.Lond. B, 366(1581), 2996-3005. doi:10.1098/rstb.2011.0126
Schütz, C., and Dürr, V. (2011). Active tactile exploration for adaptive locomotion in the stick insect. Phil.Trans.R.Soc.Lond. B 366, 2996-3005.
Schütz, C., & Dürr, V., 2011. Active tactile exploration for adaptive locomotion in the stick insect. Phil.Trans.R.Soc.Lond. B, 366(1581), p 2996-3005.
C. Schütz and V. Dürr, “Active tactile exploration for adaptive locomotion in the stick insect”, Phil.Trans.R.Soc.Lond. B, vol. 366, 2011, pp. 2996-3005.
Schütz, C., Dürr, V.: Active tactile exploration for adaptive locomotion in the stick insect. Phil.Trans.R.Soc.Lond. B. 366, 2996-3005 (2011).
Schütz, Christoph, and Dürr, Volker. “Active tactile exploration for adaptive locomotion in the stick insect”. Phil.Trans.R.Soc.Lond. B 366.1581 (2011): 2996-3005.

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PMID: 21969681
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