Changing Motor Patterns of the 3rd Axillary Muscle Activities Associated with Longitudinal Control in Freely Flying Hawkmoths

Ando, Noriyasu; Kanzaki, Ryohei

doi:10.2108/zsj.21.123

Cited by 22 publications

(33 citation statements)

References 19 publications

(30 reference statements)

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…In this study, we focused on parameters that could express the wing leading edge angular positions at the ventral stroke reversals. These positions were attractive because the DVM and 3AXM activated just ahead of this (Ando and Kanzaki, 2004) as well as because of their variability. Here we defined the wing leading edge angular positions at ventral stroke reversals by two angles, the flapping angle (⌽) and the deviation angle (⌿), in the body-fixed coordinate frame (Fig.·3A).…”

Section: Wing Kinematicsmentioning

confidence: 99%

“…The updated telemeter circuit along with the electromagnetically shielded flight chamber improved the quality of the EMG recordings. A telemetry system and recording of EMGs were described previously (Ando and Kanzaki, 2004). Recording electrodes (copper wires of 100·m in diameter, insulated except at the tip) were inserted into flight muscles.…”

Section: Telemetrymentioning

confidence: 99%

“…Recording electrodes (copper wires of 100·m in diameter, insulated except at the tip) were inserted into flight muscles. Simultaneous recording of both the DLM and the DVM was made by inserting a single electrode into the edge of the DLM, adjacent to the DVM (Ando and Kanzaki, 2004). Transmitted signals from the telemeter were received by two FM tuners and recorded onto a data acquisition system (Powerlab/8SP, ADInstruments, Colorado Springs, CO, USA), sampling rate 10·kHz.…”

Section: Telemetrymentioning

confidence: 99%

“…Until now, the wireless transmission of muscle potentials has been applied for freely flying desert locusts (Fischer and Kutsch, 1999;Kutsch, 2002;Kutsch et al, 2003) and hawkmoths (Ando and Kanzaki, 2004). The flight muscle activities and wing kinematics [such as wingbeat frequency, the firing relationship of elevation muscles and the correlation between muscle activities and body/wing kinematics (Kutsch, 2002;Kutsch et al, 2003)] during free flight of locusts could be different from those in tethered flight.…”

Section: Introductionmentioning

confidence: 99%

“…As for hawkmoths during free flight, the flight muscle activities are much less changeable than those during tethered flight, suggesting that slight modulation of the motor output pattern and the subsequent wing kinematics might be adequate for free flight manoeuvres. The telemetric recording of muscle potentials during free flight revealed that the activities of the DVM and the 3AXM are less variable than those in tethered flight; however, they are activated in phase with wingstroke regularly just before the ventral stroke reversal (Ando and Kanzaki, 2004). These observations suggest that hawkmoths may control the wing position at the ventral stroke reversal through the two muscles, given that they are both synchronous (neurogenic) flight muscles (Rheuben and Kammer, 1987).…”

Section: Introductionmentioning

confidence: 99%

See 4 more Smart Citations

Active control of free flight manoeuvres in a hawkmoth, Agrius convolvuli

Wang

Ando

Kanzaki

2008

Journal of Experimental Biology

Self Cite

View full text Add to dashboard Cite

SUMMARYBy combining optical triangulation with the comb-fringe technique and dual-channel telemetry, wing kinematics and body attitudes accompanying muscle activities of free-flying male hawkmoths were recorded synchronously when they performed flight manoeuvres elicited by a female sex pheromone. The results indicate that the wing leading edge angular position at the ventral stroke reversal, which can be decomposed by two orthogonal angular parameters (a flapping angle and a deviation angle), is well controllable. Two specific flight muscles, the dorsal-ventral muscle (DVM, indirect muscle, a wing elevator) and the third axillary muscle (3AXM, direct muscle, a wing retractor), can modulate the flapping angle and the deviation angle, respectively, by means of regulating the firing timing of muscle activities. The firing timing can be expressed by the firing latency absolutely, which is just before the timing of ventral stroke reversal. The results illustrate that lengthening the firing latency of the DVM and of the 3AXM can increase the flapping angle and the deviation angle, respectively, which both strengthen the downstroke at the ventral stroke reversal. The relationship of bilateral asymmetry shows that the bilateral differences in the firing latency of the DVM and of the 3AXM will cause bilateral differences in the wing position, which accompany the variations of yaw and roll angles in time course. This implies the contribution of the two muscles to active steering controls during turning or banking, though the DVM being an indirect muscle was generally treated as a power generator. Finally, the relationship between the pitch angle and the 3AXM latency, deduced from the relationships between the pitch angle and the deviation angle and between the deviation angle and the 3AXM latency, shows that lengthening the 3AXM latency can increase the pitch angle at the ventral stroke reversal by moving the wing tip far away from the centre of gravity of the body, which indicates a functional role of the 3AXM in active pitching control.

show abstract

Section: Wing Kinematicsmentioning

confidence: 99%

Section: Telemetrymentioning

confidence: 99%

Section: Telemetrymentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Active control of free flight manoeuvres in a hawkmoth, Agrius convolvuli

Wang

Ando

Kanzaki

2008

Journal of Experimental Biology

Self Cite

View full text Add to dashboard Cite

show abstract

Untethered Insect Interfaces

Jadhav

Maharbiz

Sato

2014

Implantable Bioelectronics

View full text Add to dashboard Cite

Chemie der Cyborgs – zur Verknüpfung technischer Systeme mit Lebewesen

2013

View full text Add to dashboard Cite

Die Bezeichnung “Cyborg” ist ein Akronym für einen kybernetischen Organismus, der eine Chimäre aus einem lebenden Organismus und einer Maschine beschreibt. Infolge der zahlreichen Anwendungen intrakorporaler medizinischer Systeme sind Cyborgs nicht mehr nur Gegenstand der Science‐Fiction, sondern technisch gesehen tatsächlich bereits ein Teil unserer Gesellschaft. In diesem Aufsatz fassen wir die Entwicklungen bei modernen Prothesen und Schnittstellen zwischen Gehirn und Maschine (brain–machine interface; BMI) zusammen und diskutieren die jüngsten Entwicklungen bei implantierbaren Systemen mit einem Fokus auf integrierter biokompatibler Elektronik und Mikrofluidik, die für die Kommunikation und Kontrolle von Organismen benutzt werden. Wir beschreiben neueste Beispiele von Tier‐Cyborgs und deren Relevanz für die biomedizinische Grundlagen‐ und Anwendungsforschung sowie für die Bioethik in diesem neuen und aufregenden Bereich an der Schnittstelle zwischen Chemie, Biomedizin und den Ingenieurwissenschaften.

show abstract

Changing Motor Patterns of the 3rd Axillary Muscle Activities Associated with Longitudinal Control in Freely Flying Hawkmoths

Cited by 22 publications

References 19 publications

Active control of free flight manoeuvres in a hawkmoth, Agrius convolvuli

Active control of free flight manoeuvres in a hawkmoth, Agrius convolvuli

Untethered Insect Interfaces

Chemie der Cyborgs – zur Verknüpfung technischer Systeme mit Lebewesen

Contact Info

Product

Resources

About