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Chordotonal Organs of Insects
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Plasticity in the visual system is correlated with a change in lifestyle of solitarious and gregarious locusts.
TLDR
This work analyzed in both phases the responses of an identified visual interneuron, the descending contralateral movement detector (DCMD), which responds to approaching objects, and demonstrated that habituation of DCMD is fivefold stronger in solitarious locusts.
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Substantial changes in central nervous system neurotransmitters and neuromodulators accompany phase change in the locust
TLDR
High-performance liquid chromatography data show that changes in levels of neuroactive substances are widespread in the central nervous system and reflect the time course of behavioural and physiological phase change in desert locusts.
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Mechanosensory-induced behavioural gregarization in the desert locust Schistocerca gregaria
TLDR
The data show for the first time that the gregarizing signal combines both exteroceptive and proprioceptive components, which travel in both nerves 5B1 and 5B2, and provides a powerful experimental method with which to elicit and study neuronal plasticity in this system.
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Coordinated righting behaviour in locusts.
TLDR
Their narrow body geometry, large hind legs, which can generate substantial dorsally directed force, and the particular patterns of coordinated movements of the legs on both sides of the body are the key features that permit locusts to right themselves effectively.
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Responses and locations of neurones in the locust metathoracic femoral chordotonal organ
  • T. Matheson
  • Biology
    Journal of Comparative Physiology A
  • 1 April 1990
TLDR
The distribution of neurone somata in the locust mtFCO is more complex than previously thought: receptors sensitive to both stretch and relaxation of the apodeme are distributed throughout the organ.
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Spatiotemporal receptive field properties of a looming-sensitive neuron in solitarious and gregarious phases of the desert locust.
TLDR
The lobula giant movement detector and its postsynaptic target, the descending contralateral movement detector, which are visual interneurons that detect looming objects are used to analyze how differences in the visual ecology of the two phases are served by altered neuronal function.
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A presynaptic gain control mechanism among sensory neurons of a locust leg proprioceptor
TLDR
The chordotonal organ at the femorotibial joint of a locust hind leg monitors extension and flexion movements of the tibia and interactions suggest that a local gain control mechanism operates between the afferents of this proprioceptor.
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Parallel somatotopic maps of gustatory and mechanosensory neurons in the central nervous system of an insect
TLDR
It is shown that the sensory neurons from tactile hairs form a complete 3‐dimensional somatotopic map in the mesothoracic ganglion, and the position of a receptor on the leg is preserved in the central nervous system not only for the mechanosensory neurons from both tactile hairs and basiconic sensilla but also for chemosENSory neurons.
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Co-Contraction and Passive Forces Facilitate Load Compensation of Aimed Limb Movements
TLDR
Vertebrates and arthropods are both capable of load compensation during aimed limb movements, such as reaching and grooming, and a neuromechanical model of the femur–tibia joint that transformed measured extensor and flexor motoneuron spikes into joint kinematics was used.
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