Visual interneurones of the neck connectives in Gryllus bimaculatus

Autor: G. Beugnon, L. Williams, Daniel Richard, R. Campan, V. Preteur
Rok vydání: 1985
Předmět:
Zdroj: Journal of Insect Physiology. 31:407-417
ISSN: 0022-1910
DOI: 10.1016/0022-1910(85)90086-1
Popis: Visual responses of units recorded in the neck connectives of the cricket ( Gryllus bimaculatus ) are described. These visual interneurones have particular spatio-temporal properties: • - They act as low-pass filters when stimulated by flickering light. • - A region of visual space, covering 80% of the receptive fields roughly corresponds to the “zone of fixation” described from psychophysiological experiments. Three of these neurones have been stained and anatomically identified. They all have their cell-bodies and profuse dendritic branches in the brain, and have axonal arborizations in the thoracic ganglia. The axon of each of these three cells proceeds in the connective contralateral to its respective cell-body; consequently, we called these cells Contralateral Descending Visual Interneurones. The properties of these neurones are discussed in relation to the behavioural performance of the animal.
Databáze: OpenAIRE