A neural basis for gyroscopic force measurement in the halteres of Holorusia

@article{Fox2008ANB,
  title={A neural basis for gyroscopic force measurement in the halteres of Holorusia},
  author={Jessica L. Fox and Thomas L. Daniel},
  journal={Journal of Comparative Physiology A},
  year={2008},
  volume={194},
  pages={887-897}
}
  • J. L. Fox, T. Daniel
  • Published 27 August 2008
  • Physics, Medicine
  • Journal of Comparative Physiology A
Dipteran flight requires rapid acquisition of mechanosensory information provided by modified hindwings known as halteres. Halteres experience torques resulting from Coriolis forces that arise during body rotations. Although biomechanical and behavioral data indicate that halteres detect Coriolis forces, there are scant data regarding neural encoding of these or any other forces. Coriolis forces arise on the haltere as it oscillates in one plane while rotating in another, and occur at… Expand
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TLDR
It is shown that the primary afferent neurons of the haltere’s mechanoreceptors respond selectively with high temporal precision to multiple stimulus features, which allows the haltedere to transmit information at a high rate about numerous inertial forces, including Coriolis forces. Expand
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In cells in the central brain, the timing and rates of neural spiking can be modulated by sensory input from experimental haltere movements, finding haltere sensory information in a brain region known to be involved in slower, higher-order behaviors, such as navigation. Expand
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This study brings out one specific feature—the asymmetric geometry of the haltere structure—that is not found in current vibratory gyroscope designs that will inspire new designs of MEMS gyroscopes that have elegance and simplicity of the haltedere along with the desired performance. Expand
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TLDR
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TLDR
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References

SHOWING 1-10 OF 59 REFERENCES
Haltere Afferents Provide Direct, Electrotonic Input to a Steering Motor Neuron in the Blowfly, Calliphora
TLDR
Using intracellular recording and mechanical stimulation, one identified haltere campaniform field (dF2) is found that provides strong synaptic input to the mnb1 that may be responsible in part for the phase-locked firing of b1 during flight. Expand
Convergent mechanosensory input structures the firing phase of a steering motor neuron in the blowfly, Calliphora.
TLDR
The results indicate that both wing and haltere afferents make strong monosynaptic connections with MNB1, consisting of fast electrical and slow Ca(2+)-sensitive components, and that the wing pathway is stronger, judged by its ability to entrain MNB 1 within a background of haltere stimulation. Expand
Linear and Nonlinear Encoding Properties of an Identified Mechanoreceptor on the Fly wing Measured with Mechanical Noise Stimuli
TLDR
A method of analysis based upon mechanical noise stimuli which is used to quantify the encoding properties of one of these sensilla (the d-HCV cell) on the wing of the blowfly Calliphora vomitoria, and is successful in predicting the response of campaniform neurones to arbitrary stimuli. Expand
The halteres of the blowfly Calliphora
  • G. Nalbach
  • Physics, Biology
  • Journal of Comparative Physiology A
  • 2004
TLDR
From these considerations it is concluded that Coriolis forces play the major role in detecting body rotations. Expand
The gyroscopic mechanism of the halteres of Diptera
  • J. Pringle
  • Physics
  • Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences
  • 1948
The paper gives a detailed anatomical, dynamical and physiological analysis of the gyroscopic mechanism of the halteres of the higher Diptera. (1) A re-examination has been made of the structure ofExpand
A comparison of visual and haltere-mediated equilibrium reflexes in the fruit fly Drosophila melanogaster
TLDR
The results show that the visual system is tuned to relatively slow rotation whereas the haltere-mediated response to mechanical rotation increases with rising angular velocity, which may enhance aerodynamic performance by enabling the fly to sense a wide range of angular velocities during flight. Expand
The control of wing kinematics by two steering muscles of the blowfly (Calliphora vicina)
TLDR
Sustained activation of the b1 at rates near wing beat frequency appears necessary for the tonic maintenance of stroke amplitude, and similar kinematic alterations were correlated with b2 spikes, and consequently, both muscles may function in the control of turns toward the contralateral side. Expand
Head Movements in Flies ( Calliphora ) Produced by Deflexion of the Halteres
TLDR
Behavioural observations of walking flies show that the presence or absence of halteres has a small but nevertheless significant effect on the animals9 ability to detect angular accelerations during walking or to orient with respect to gravity. Expand
Mechanosensory control of compensatory head roll during flight in the blowflyCalliphora erythrocephala Meig.
Summary1.In the blowflyCalliphora flying stationarily in a wind tunnel, compensatory head movements were elicited by rolling the fly about its longitudinal axis (Fig. 1). Responses were recorded onExpand
A comparison of visual and haltere-mediated feedback in the control of body saccades in Drosophila melanogaster
TLDR
It is found that cutting the wing surface disrupted the time course of the saccades, indicating that although flies employ sensory feedback to modulate saccade dynamics, it is not precise or fast enough to compensate for large changes in wing efficacy. Expand
...
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2
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