The Role of Ascending Proprioceptive Information in Decision-Making Processes in...
The Role of Ascending Proprioceptive Information in Decision-Making Processes in Walking Drosophila
Locomotion is one of the most relevant tasks of nervous systems, allowing animals to approach food, locate a mate, and escape predators. Most types of locomotion, like walking and flying, are based on rhythmic body movements gener...
Locomotion is one of the most relevant tasks of nervous systems, allowing animals to approach food, locate a mate, and escape predators. Most types of locomotion, like walking and flying, are based on rhythmic body movements generated by local premotor networks in the nerve cord, whereas the goal of where to move is generated in the brain – e.g., a hungry fly visually locating a food source. For flexible, goal-directed locomotion, the communication between the brain and premotor networks in the nerve cord must be bidirectional. However, in contrast to descending commands from the brain, little is known about proprioceptive signals ascending from the nerve cord's premotor networks.
We hypothesize that ascending information plays a vital role in decision-making and action selection processes. Before commanding the body to change direction, or to keep it from doing so to maintain a straight path, brain circuits need to consider the current stability of the body, its walking speed and direction. In this project we aim to characterize the ascending signals determining the direction of upcoming turns if the fly’s trajectory deviates from the intended one.
We will identify the source of the ascending information, characterize functional differences of ascending information pathways, and determine their integration within brain circuits by harnessing the vast toolkit of Drosophila melanogaster and combining the expertise of the Chiappe group on sensorimotor integration in the brain of walking Drosophila with mine on networks controlling walking in the ventral nerve cord. This work will deepen our understanding of the function of proprioception in higher order brain functions, action selection, and decision-making.ver más
Seleccionando "Aceptar todas las cookies" acepta el uso de cookies para ayudarnos a brindarle una mejor experiencia de usuario y para analizar el uso del sitio web. Al hacer clic en "Ajustar tus preferencias" puede elegir qué cookies permitir. Solo las cookies esenciales son necesarias para el correcto funcionamiento de nuestro sitio web y no se pueden rechazar.
Cookie settings
Nuestro sitio web almacena cuatro tipos de cookies. En cualquier momento puede elegir qué cookies acepta y cuáles rechaza. Puede obtener más información sobre qué son las cookies y qué tipos de cookies almacenamos en nuestra Política de cookies.
Son necesarias por razones técnicas. Sin ellas, este sitio web podría no funcionar correctamente.
Son necesarias para una funcionalidad específica en el sitio web. Sin ellos, algunas características pueden estar deshabilitadas.
Nos permite analizar el uso del sitio web y mejorar la experiencia del visitante.
Nos permite personalizar su experiencia y enviarle contenido y ofertas relevantes, en este sitio web y en otros sitios web.