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Keywords: control
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Journal Articles
J Exp Biol (2020) 223 (10): jeb212316.
Published: 28 May 2020
... aliasing is induced by ego motion. We hypothesized that obstructing the control of gaze fixation also disrupts detection and tracking of objects. Using the illusory motion stimulus, we show that magnetically tethered Drosophila track objects robustly in flight even when gaze is not fixated as flies...
Includes: Supplementary data
Journal Articles
J Exp Biol (2020) 223 (3): jeb214908.
Published: 5 February 2020
...Suzanne M. Cox; Gary B. Gillis ABSTRACT Controlled landing requires preparation. Mammals and bipedal birds vary how they prepare for landing by predicting the timing and magnitude of impact from the integration of visual and non-visual information. Here, we explore how the cane toad Rhinella marina...
Journal Articles
J Exp Biol (2019) 222 (18): jeb207951.
Published: 12 September 2019
... sensitivity that are able to effectively increase their capacity at low temperature following cold acclimation: complex I and the phosphorylation system. The phosphorylation system is known to control OXPHOS in planarians ( Lemieux and Warren, 2012 ), but this control increases as temperature decreases...
Includes: Supplementary data
Journal Articles
J Exp Biol (2019) 222 (11): jeb190884.
Published: 11 June 2019
... of the territory. Highlighted Article: Territorial dragonflies pursuing conspecifics use an underdamped interception strategy, resulting in oscillating pursuit paths that may serve to intimidate or herd intruders out of the territory. Interception Territoriality Guidance Control Kinematics...
Includes: Supplementary data
Journal Articles
J Exp Biol (2019) 222 (9): jeb195172.
Published: 30 April 2019
...Kirsty A. McDonald; Daniel Devaprakash; Jonas Rubenson ABSTRACT Center of mass (COM) control has been proposed to serve economy- and stability-related locomotor task objectives. However, given the lack of evidence supporting direct sensing and/or regulation of the COM, it remains unclear whether...
Journal Articles
J Exp Biol (2015) 218 (19): 3051–3058.
Published: 1 October 2015
... the trunk nor head contacts the substrate during landing. Instead, deceleration is exclusively controlled by the forelimbs and their underlying musculature ( Azizi and Abbott, 2013 ; Gillis et al., 2014 ). Such coordination relies on appropriate pre-landing muscle activity patterns in the forelimbs...
Journal Articles
J Exp Biol (2014) 217 (18): 3333–3345.
Published: 15 September 2014
... is a physical linkage mediating mechanical interactions between body and environment, mechanical tuning of the sensor is critical for effective control. We determined the open-loop dynamics of a tactile sensor, specifically the antenna of the American cockroach, Periplaneta americana , an animal that escapes...
Journal Articles
J Exp Biol (2014) 217 (13): 2229–2231.
Published: 1 July 2014
... by The Company of Biologists Ltd 2014 DGC Control Ventilation Schistocerca gregaria Insects exchange respiratory gases with their environment through their elaborate network of gas-filled trachea. These are ramified into small-diameter tracheoles whose tips lie in close proximity to individual...
Journal Articles
J Exp Biol (2011) 214 (24): 4092–4106.
Published: 15 December 2011
...Bo Cheng; Xinyan Deng; Tyson L. Hedrick SUMMARY Insects produce a variety of exquisitely controlled manoeuvres during natural flight behaviour. Here we show how hawkmoths produce and control one such manoeuvre, an avoidance response consisting of rapid pitching up, rearward flight, pitching down...
Journal Articles
J Exp Biol (2008) 211 (2): 258–266.
Published: 15 January 2008
...Graham K. Taylor; Marko Bacic; Richard J. Bomphrey; Anna C. Carruthers; James Gillies; Simon M. Walker; Adrian L. R. Thomas SUMMARY Here we consider how new experimental approaches in biomechanics can be used to attain a systems-level understanding of the dynamics of animal flight control. Our aim...
Includes: Multimedia, Supplementary data
Journal Articles
J Exp Biol (2006) 209 (4): 622–632.
Published: 15 February 2006
... feature of locomotion control. The current study examines running gait selection within the framework of constrained optimization by comparing self-selected running gaits to the gaits predicted by constrained optimization of a cost surface constructed from cost data available in the literature...
Journal Articles
J Exp Biol (2005) 208 (9): 1709–1716.
Published: 1 May 2005
... debate. Provided the external and internal conditions required to measure SMR are met, it is tacitly assumed that the metabolic rate(B) converges to SMR. If SMR does indeed represent a local minimum, then short-term regulatory control mechanisms should not operate to sustain it. This is a hidden...
Journal Articles
J Exp Biol (2005) 208 (6): 979–991.
Published: 15 March 2005
... cost contours derived from this surface. Substantial congruence is found between the predicted and observed behavior using the cost of walking per unit distance. Although minimization of cost per distance appears to dominate walking control, certain notable differences from predicted behavior suggest...
Journal Articles
J Exp Biol (2004) 207 (19): 3339–3348.
Published: 1 September 2004
... of association of smooth muscle cells with interarterial anastomoses and secondary vessels, in order to assess the structural capacity for this vascular system to regulate flow. The possible involvement of a suite of NANC components in the control of this vascular system was also investigated...
Journal Articles
J Exp Biol (2003) 206 (16): 2803–2829.
Published: 15 August 2003
... stability and static control responses are insufficient to provide asymptotic longitudinal dynamic stability unless they are sensitive to pitch attitude (measured with respect to an inertial or earth-fixed frame)as well as aerodynamic incidence (measured relative to the direction of flight). We find...
Journal Articles
J Exp Biol (1987) 131 (1): 323–336.
Published: 1 September 1987
..., with trembling movements predominating in the pitching plane. A contour-sharpening function is proposed for these movements. 3. An attempt to analyse the eye movement response system using a Bode diagram shows a very poor fit to the data, leading to the conclusion that a closed-loop control system...