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Titolo:
Responses of the infrared sensilla of Melanophila acuminata (Coleoptera : Buprestidae) to monochromatic infrared stimulation
Autore:
Schmitz, H; Murtz, M; Bleckmann, H;
Indirizzi:
Univ Bonn, Inst Zool, D-53115 Bonn, Germany Univ Bonn Bonn Germany D-53115 iv Bonn, Inst Zool, D-53115 Bonn, Germany Univ Bonn, Inst Angew Phys, D-53115 Bonn, Germany Univ Bonn Bonn GermanyD-53115 n, Inst Angew Phys, D-53115 Bonn, Germany
Titolo Testata:
JOURNAL OF COMPARATIVE PHYSIOLOGY A-SENSORY NEURAL AND BEHAVIORAL PHYSIOLOGY
fascicolo: 6, volume: 186, anno: 2000,
pagine: 543 - 549
SICI:
0340-7594(200006)186:6<543:ROTISO>2.0.ZU;2-S
Fonte:
ISI
Lingua:
ENG
Soggetto:
RECEPTOR; BEETLE; PROJECTIONS;
Keywords:
Melanophila; infrared receptor; mechanoreceptor; insect cuticle; remote sensing;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Life Sciences
Citazioni:
28
Recensione:
Indirizzi per estratti:
Indirizzo: Schmitz, H Univ Bonn, Inst Zool, Poppelsdorfer Schloss, D-53115 Bonn, Germany Univ Bonn Poppelsdorfer Schloss Bonn Germany D-53115 , Germany
Citazione:
H. Schmitz et al., "Responses of the infrared sensilla of Melanophila acuminata (Coleoptera : Buprestidae) to monochromatic infrared stimulation", J COMP PH A, 186(6), 2000, pp. 543-549

Abstract

The pit organs of the beetle Melanophila acuminata were stimulated with monochromatic infrared radiation using a continuous wave CO overtone infraredlaser. Best sensitivity was in the wavelength range 2.8-3.5 mu m. In this range a stimulus intensity of 14.7 mW cm(-2) was sufficient to generate single action potentials. At a wavelength of 5 mu m receptor performance significantly decreased. An increase in stimulus intensity caused a decrease in response latency and an increase in the number of action potentials elicited. At a given wavelength (3.4 mu m) the dynamic amplitude range of action potential responses covered 12 dB. At high stimulus intensities (94.2 mW cm(-2)) a stimulus duration of 4 ms was sufficient to generate one to two action potentials and a stimulus duration of 60 ms already caused response saturation (with up to nine action potentials). In a repetitive stimulus regimedistinct receptor potentials were visible up to a frequency of 600 Hz.

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Documento generato il 28/09/20 alle ore 05:03:32