Form, function and mechanics of femoral chordotonal organs in insects

Current Opinion in Behavioral Sciences, Journal Year: 2024, Volume and Issue: 60, P. 101459 - 101459

Published: Nov. 20, 2024

Language: Английский

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A mechanism for tuning proprioception proposed by research in Drosophila and mammals

Exploration of neuroscience, Journal Year: 2024, Volume and Issue: unknown, P. 27 - 38

Published: Feb. 21, 2024

Proprioception provides important sensory feedback regarding the position of an animal’s body and limbs in space. This interacts with a central pattern generator responsible for rhythmic movement, to adapt locomotion demands that environment places on it. The mechanisms by which this is enabled are poorly understood, belies its importance: dysfunctional proprioception associated movement disorder improving it can help reduce severity symptoms. Similarly, guiding accurate robotic understanding how systems capture process information guide action selection. It therefore interpret research investigates proprioception, ask: what type do proprioceptive sensors capture, they it? Work mammalian models has made progress towards answering question. So too, conducted Drosophila. Fruit fly proprioceptors more accessible than equivalents be manipulated using unique genetic toolkit, so experiments invertebrate make significant contribution overall understanding. difficult, however, relate work different models, draw general conclusions about proprioception. review, therefore, explores fruit revealed proprioceptor function, highlight potential translation mammals. Specifically, present text presents evidence differential expression mechanoelectrical transducers contributes tuning suggests same mechanism may play role proprioceptors.

Language: Английский

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Structure of the Femoral Chordotonal Organ in the Oleander hawkmoth, Daphnis nerii

bioRxiv (Cold Spring Harbor Laboratory), Journal Year: 2024, Volume and Issue: unknown

Published: July 15, 2024

Abstract Insect legs serve as crucial organs for locomotion and also act sensory probes into the environment. They are involved in several complex movements including walking, jumping, prey capture, manipulation of objects, self-grooming. These behaviours require continuous modulation motor output through mechanosensory feedback which is provided by numerous mechanosensors located on cuticle within soft tissue. A key organ insect leg, femoral chordotonal (FeCO), detects femoro-tibial joint. This multifunctional senses both self-generated (proprioception) external stimuli (exteroception). Movements tibia alter length FeCO, activates embedded neurons. Due to mechanical nature these stimuli, structure material properties FeCO their function, alongside neural encoding properties. Here, a first step towards understanding how its modulates we characterized morphology anatomy hawkmoth Daphnis nerii . Using combination computed micro-tomography, neuronal dye fills confocal microscopy, describe location, composition central projections proximal half femur composed ventral (vFeCO) dorsal scoloparia (dFeCO) vary vastly sizes number neurons they house. The arrangement dFeCO follows decreasing size gradient proximo-distal axis. characteristic accessory structures organs, scolopales, significantly differ when compared between two scoloparia. project nervous system terminate respective hemiganglia. morphological data, propose model can help us understand relating physiological function.

Language: Английский

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Encoding 3D Leg Kinematics Using Spatially-Distributed, Population Coded Network Model

Lecture notes in computer science, Journal Year: 2024, Volume and Issue: unknown, P. 317 - 332

Published: Dec. 12, 2024

Language: Английский

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Engineering mechanoreceptor feature selectivity

Neuron, Journal Year: 2023, Volume and Issue: 111(20), P. 3137 - 3139

Published: Oct. 1, 2023

Language: Английский

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