The aerodynamics and sensory physiology of range fractionation in the cereal filiform sensilla of the cricketGryllus bimaculatus

Shimozawa, Tateo; Kanou, Masamichi

doi:10.1007/bf00611914

Cited by 143 publications

(89 citation statements)

References 13 publications

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“…Since each cercus is approximately a long finite cone, Shimozawa and collaborators [31,32,33] argued that both infinite planar and cylindrical approximations can be used successfully. This assumption is reasonable for hairs distributed in a line along the long axis of the cercus.…”

Section: The Boundary Layer Flowmentioning

confidence: 99%

“…Therefore, we model each hair as a rigid rod that swings in its socket as a linear, inverted pendulum [12,31,32,20,21,27]. The trajectory of each hair is described by the angle θ(t) that the hair makes with its resting position as it moves in response to the driving flow.…”

Section: Model Of the Hairmentioning

confidence: 99%

“…As mentioned in the Introduction, many previous modeling approaches [12,20,33,31,32] did not include the interaction between hairs mediated by fluid coupling. Our main objective was to develop a modeling framework that would allow us to determine the extent of these interactions and thus extend naturally the results of the motion of a single hair.…”

Section: Interaction Between the Hairsmentioning

confidence: 99%

“…It has even been suggested (though not demonstrated conclusively) that every single filiform hair may be re-identifiable [23,24,44], i.e., that every adult cricket with undamaged cerci has the same number of filiform hairs, and that each hair can be catalogued with a specific relative length, position and directional movement axis differing by at most 5% across different animals. These biophysical parameters are of substantial functional importance: the mechanical filtering of stimulus information in the cercal system is determined solely by the lengths and orientations of the hairs, and by the interactions between the hairs in the array [18,20,27,32,31,33]. The importance of the cerci for the animal's survival, the coupling between cercal structure and function, and the extremely low interanimal variability of cercal receptor array structure are all consistent with the conjecture that these structural attributes have been subject to selective pressure.…”

mentioning

confidence: 99%

“…One of the first models of single hair motion was introduced by Shimozawa and Kanou [31], which assumed periodic air flow and modeled the hair as an inverted pendulum. This work has been extended by Humphrey et al [12], Shimozawa et al [33] and Osborne [27].…”

mentioning

confidence: 99%

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Interaction between arthropod filiform hairs in a fluid environment

Cummins

Gedeon

Klapper

et al. 2007

Journal of Theoretical Biology

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Many arthropods use filiform hairs as mechanoreceptors to detect air motion. In common house crickets (Acheta domestica) the hairs cover two antenna-like appendages called cerci at the rear of the abdomen. The biomechanical stimulus-response properties of individual filiform hairs have been investigated and modeled extensively in several earlier studies. However, only a few previous studies have considered viscosity-mediated coupling between pairs of hairs, and only in particular configurations. Here we present a model capable of calculating hair-to-hair coupling in arbitrary configurations. We simulate the coupled motion of a small group of mechanosensory hairs on a cylindrical section of cercus. We have found that the coupling effects are non-negligible, and likely constrain the operational characteristics of the cercal sensory array.

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Section: The Boundary Layer Flowmentioning

confidence: 99%

Section: Model Of the Hairmentioning

confidence: 99%

Section: Interaction Between the Hairsmentioning

confidence: 99%

mentioning

confidence: 99%

mentioning

confidence: 99%

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Interaction between arthropod filiform hairs in a fluid environment

Cummins

Gedeon

Klapper

et al. 2007

Journal of Theoretical Biology

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Functional morphology of insect mechanoreceptors

Keil

1997

Microsc. Res. Tech.

390

304

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This paper reviews the structure and function of insect mechanoreceptors with respect to their cellular, subcellular, and cuticular organization. Four types are described and their function is discussed: 1, the bristles; 2, the trichobothria; 3, the campaniform sensilla; and 4, the scolopidia. Usually, bristles respond to touch, trichobothria to air currents and sound, campaniform sensilla to deformation of the cuticle, and scolopidia to stretch. Mechanoreceptors are composed of four cells: a bipolar sensory neuron, which is enveloped by the thecogen, the trichogen, and the tormogen cells. Apically, the neuron gives off a ciliary dendrite which is attached to the stimulustransmitting cuticular structures. In types 1-3, the tip of the dendrite contains a highly organized cytoskeletal complex of microtubules, the ''tubular body,'' which is connected to the dendritic membrane via short rods, the ''membrane-integrated cones'' (MICs). The dendritic membrane is attached to the cuticle via fine attachment fibers. The hair-type sensilla (types 1, 2) are constructed as first-order levers, which transmit deflection of the hair directly to the dendrite tip. In campaniform sensilla (type 3), there is a cuticular dome instead of a hair and the dendrite is stimulated by deformation of the cuticle. In these three types, a slight lateral compression of the dendrite tip is most probably the effective stimulus. In scolopidia, the dendritic membrane is most probably stimulated by stretch. On the subcellular level, connectors between the cytoskeleton, the dendritic membrane, and extracellular (cuticular) structures are present in all four types and are thought to be engaged in membrane depolarization.

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Engineered Mechanosensors Inspired by Biological Mechanosensilla

Qian

Fan

Gui

et al. 2021

Adv Materials Technologies

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Bionic engineering provides a promising way for promoting the development of science and technology. Next‐generation diversified mechanosensors that can efficiently sense four types of mechanical signals, including tactile, vibration, air/water flow, and sound, are also benefiting from the bioinspired approach. Natural organisms have evolved sophisticated biological mechanosensilla with excellent performance, such as ultrahigh sensitivity, resolution, stability, anti‐interference, and miniaturization, providing a great deal of inspiration for urgently needed mechanosensors that are difficult to achieve through conventional methods. Here, the recent advances in biological mechanosensilla and corresponding bioinspired mechanosensors are reviewed in detail. According to the classification of the mechanosensilla, i.e., tactile sensilla, vibrational sensilla, flow sensilla, and acoustic sensilla, this review is mainly divided into four parts. In each part, the research on functional mechanisms of the mechanosensilla based on well‐organized mechanosensory micro/nanostructures and unique functional materials, as well as the bionic design strategy and preparative technique of bioinspired mechanosensors are individually summarized and discussed. Meanwhile, insight into the further efforts in comprehensive understanding of the mechanosensilla, learning from the multiperformance integration of sensilla, and establishing the efficient preparation methods for bioinspired mechanosensors is provided, all of which are needed to be addressed urgently before having bioinspired mechanosensors of practical value.

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The aerodynamics and sensory physiology of range fractionation in the cereal filiform sensilla of the cricketGryllus bimaculatus

Cited by 143 publications

References 13 publications

Interaction between arthropod filiform hairs in a fluid environment

Interaction between arthropod filiform hairs in a fluid environment

Functional morphology of insect mechanoreceptors

Engineered Mechanosensors Inspired by Biological Mechanosensilla

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