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Titolo:
Sensory responses of descending brain neurons in the walking cricket, Gryllus bimaculatus
Autore:
Staudacher, EM;
Indirizzi:
Univ Michigan, Adv Technol Labs, Ann Arbor, MI 48109 USA Univ Michigan Ann Arbor MI USA 48109 echnol Labs, Ann Arbor, MI 48109 USA
Titolo Testata:
JOURNAL OF COMPARATIVE PHYSIOLOGY A-SENSORY NEURAL AND BEHAVIORAL PHYSIOLOGY
fascicolo: 1, volume: 187, anno: 2001,
pagine: 1 - 17
SICI:
0340-7594(200102)187:1<1:SRODBN>2.0.ZU;2-A
Fonte:
ISI
Lingua:
ENG
Soggetto:
INTERNEURONS REPORTING DEVIATION; LOCUST SCHISTOCERCA-GREGARIA; MOTION-SENSITIVE NEURONS; CENTRAL NERVOUS-SYSTEM; OMOCESTUS-VIRIDULUS L; HEAD MOVEMENTS; PERIPLANETA-AMERICANA; ACRIDID GRASSHOPPER; VISUAL NEURONS; MOTOR PATTERNS;
Keywords:
walking behavior; stimulus representation; categorial response; context dependence; gating;
Tipo documento:
Review
Natura:
Periodico
Settore Disciplinare:
Life Sciences
Citazioni:
120
Recensione:
Indirizzi per estratti:
Indirizzo: Staudacher, EM Univ Michigan, Adv Technol Labs, Ann Arbor, MI 48109 USA Univ Michigan Ann Arbor MI USA 48109 n Arbor, MI 48109 USA
Citazione:
E.M. Staudacher, "Sensory responses of descending brain neurons in the walking cricket, Gryllus bimaculatus", J COMP PH A, 187(1), 2001, pp. 1-17

Abstract

Sensory responses of various descending brain neurons, their modulation during standing or walking, and the correlation of such modulations with stimulus category were investigated. Stimuli involving (1) static or moving grating, artificial calling songs with (2) the conspecific and (3) an ultrasound frequency, or (4) air puffs to the cerci were presented to crickets walking in an open loop paradigm. The morphology of different descending interneurons in the brain and thoracic ganglia is described, together with their respective response properties. Some cells were excited, others inhibited by, and only some were directionally sensitive to the optomotor stimulus. Responses to artificial calling songs with conspecific and ultrasound frequency differed in the way the syllables of the sounds were coded and in the representation of ipsi- and contralateral stimuli. The majority of cells tested responded to air puffs. Stimulus representation differed among individuals of morphological types, but was very similar among individual interneurons of the morphologically homogenous i5 group. Stimuli approximating predators (air puffs, ultrasound) were usually represented during walking and standing; however, most neurons only responded to the other stimuli only during walking. These results indicate that the same neurons show different responses, and may have different functions, under different behavioral conditions.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 27/01/20 alle ore 07:20:47