« Previous Abstract[Indoor air and human health--sick house syndrome and multiple chemical sensitivity]    Next AbstractHydrocarbons with a homoconjugated polyene system and their monoepoxy derivatives: Sex attractants of geometrid and noctuid moths distributed in Japan »

J Neurosci Methods

Title:		"A dual-channel FM transmitter for acquisition of flight muscle activities from the freely flying hawkmoth, Agrius convolvuli"
Author(s):		Ando N; Shimoyama I; Kanzaki R;
Address:		"Institute of Biological Sciences, University of Tsukuba, Tsukuba, Ibaraki 305-8572, Japan"
Journal Title:		J Neurosci Methods
Year:		2002
Volume:		115
Issue:		2
Page Number:		181 - 187
DOI:		10.1016/s0165-0270(02)00013-4
ISSN/ISBN:		0165-0270 (Print) 0165-0270 (Linking)
Abstract:		"Moths can perform various flight maneuvers by the contraction of some direct and indirect flight muscles. Multi-channel recording from these flight muscles and analysis of their interaction is very important for understanding insect flight motor system. In this study, we developed a dual-channel FM transmitter for acquisition of muscle potentials, with which a male hawkmoth (Agrius convolvuli) could fly freely and perform pheromone triggered zigzag flight in a wind tunnel. The transmitter weighs only 0.25 g including single battery, has a 5 m receivable range and works for more than 30 min. Doubling channels was achieved by providing two oscillators (the carrier frequencies were 82 and 85 MHz), and interference between them was overcome by buffer amplifiers and independent reference electrodes for each channel. With this transmitter, we could acquire muscle potentials from some direct and indirect muscles during free flight. Combined with simultaneous high-speed video analysis, we observed distinct changes of motor patterns during takeoff. Our radio-telemetric system allows acquisition of actual information from freely flying moths; such information will lead to further progress in the study of insect flight"
Keywords:		"Animals Electrophysiology Flight, Animal/*physiology Male Manduca/physiology Moths/drug effects/*physiology Muscle, Skeletal/physiology Pheromones/pharmacology *Telemetry Videotape Recording;"
Notes:		"MedlineAndo, N Shimoyama, I Kanzaki, R eng Evaluation Study Research Support, Non-U.S. Gov't Netherlands 2002/05/07 J Neurosci Methods. 2002 Apr 15; 115(2):181-7. doi: 10.1016/s0165-0270(02)00013-4"