Neural encoding of wetness perception in the cortex.
Perception depends on the representation of external information in the cortex. This information enters the nervous system thanks to receptor proteins in your sensory neurons. These receptors transform external energy into neural...
Perception depends on the representation of external information in the cortex. This information enters the nervous system thanks to receptor proteins in your sensory neurons. These receptors transform external energy into neural activity. It follows that, if you do not have receptors sensitive to an environmental property, you cannot perceive such property. For example, humans are not able to sense electric fields, whereas some fish can because they have electroreceptors.
A sense required for survival is wetness due to its role in thermoregulatory responses. Unlike insects, humans lack hygroreceptors sensitive to the level of moisture of the skin, yet we have clear sensations of wetness. So, how do we feel wetness? Researchers think that these sensations emerge from the integration of thermotactile signals in the cortex, but the location or cellular encoding of wetness in the cortex is unknown. Therefore, I propose to study the neural basis of wetness sensations in mice. The mouse is an ideal mammalian model for this because their thermotactile system is similar to ours and tools to measure neuronal activity can be combined with behaviour. Crucially, researchers have recently found a co-localised representation of thermotactile stimuli in the mouse cortex.
First, I will develop wet stimulators for use in mice based on designs from human studies. Second, I will measure wetness sensations in mice by developing a novel perceptual task. Third, I will use calcium imaging techniques to identify and study cortical neurons activated during wetness sensations. Finally, I will use optogenetics to provide a causal relationship between neural activity and wetness sensations. This project will advance our understanding of how wetness sensations emerge through cortical activity, even in the absence of a wetness receptor. The research output will advance our understanding of brain function, but also will be of interest to the clothing, cosmetic and virtual reality industries.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.