Suppression of motion vision during course-changing, but not course-stabilizing, navigational turns.
Curr Biol
; 31(20): 4608-4619.e3, 2021 10 25.
Article
em En
| MEDLINE
| ID: mdl-34644548
ABSTRACT
From mammals to insects, locomotion has been shown to strongly modulate visual-system physiology. Does the manner in which a locomotor act is initiated change the modulation observed? We performed patch-clamp recordings from motion-sensitive visual neurons in tethered, flying Drosophila. We observed motor-related signals in flies performing flight turns in rapid response to looming discs and also during spontaneous turns, but motor-related signals were weak or non-existent in the context of turns made in response to brief pulses of unidirectional visual motion (i.e., optomotor responses). Thus, the act of a locomotor turn is variably associated with modulation of visual processing. These results can be understood via the following principle suppress visual responses during course-changing, but not course-stabilizing, navigational turns. This principle is likely to apply broadly-even to mammals-whenever visual cells whose activity helps to stabilize a locomotor trajectory or the visual gaze angle are targeted for motor modulation.
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Texto completo:
1
Coleções:
01-internacional
Contexto em Saúde:
1_ASSA2030
Base de dados:
MEDLINE
Assunto principal:
Drosophila melanogaster
/
Voo Animal
Limite:
Animals
Idioma:
En
Revista:
Curr Biol
Ano de publicação:
2021
Tipo de documento:
Article