Video Experimental Relacionado
Updated: Jan 25, 2026

13:19
Deep Neural Networks for Image-Based Dietary Assessment
Published on: March 13, 2021
9.9K
Control de la población neuronal a través de la síntesis de imágenes profundas
Pouya Bashivan1, Kohitij Kar2, James J DiCarlo2
1Department of Brain and Cognitive Sciences, McGovern Institute for Brain Research, and Center for Brains, Minds, and Machines, Massachusetts Institute of Technology, Cambridge, MA, USA.
Resumen
Los investigadores utilizaron redes neuronales artificiales (ANN) para controlar la actividad neuronal en el cerebro de los primates
Área de la Ciencia:
- La neurociencia
- Inteligencia artificial
- Neurociencia computacional
Sus antecedentes:
- Las redes neuronales artificiales profundas (ANN) son modelos avanzados de la corriente visual ventral del cerebro de los primates.
- Los modelos actuales ofrecen una alta precisión en la simulación del procesamiento visual.
Objetivo del estudio:
- Investigar el potencial de las ANN para el control no invasivo de la actividad neuronal.
- Explorar la aplicación de la síntesis de imágenes impulsada por ANN para la manipulación neuronal precisa.
Principales métodos:
- Utilizó un enfoque de síntesis de imágenes impulsado por una red neuronal artificial (ANN).
- Se aplican patrones de energía luminosa (imágenes) a las retinas de los primates.
- Se dirigió a sitios neuronales V4 específicos y sus poblaciones.
Principales resultados:
- Se logró un control predecible de la actividad de picos en sitios neuronales V4 específicos.
- Se demostró un control independiente sin precedentes de las poblaciones neuronales V4, incluidas las con campos receptivos superpuestos.
- Mostró la capacidad de empujar la actividad neuronal más allá de los niveles naturales.
Conclusiones:
- El conocimiento de las ANN se puede utilizar para establecer de manera no invasiva los estados cerebrales deseados a nivel neuronal.
- Los modelos ANN más precisos podrían conducir a un control aún más fino de la actividad neuronal.
- Este enfoque ofrece un nuevo método para comprender y potencialmente modular la función cerebral.
Más Videos Relacionados
Videos de Conceptos Relacionados
Neural Control of Respiration
4.7K
The neural regulation of respiration is a meticulously coordinated process primarily controlled by the respiratory centers located within the brainstem. These centers, composed of specialized neurons, transmit nerve impulses that control the contraction and relaxation of our respiratory muscles.
Respiratory Centers in the Brainstem
Two primary areas comprise the respiratory center: the medullary respiratory center in the medulla oblongata and the pontine respiratory group in the pons. The...
Respiratory Centers in the Brainstem
Two primary areas comprise the respiratory center: the medullary respiratory center in the medulla oblongata and the pontine respiratory group in the pons. The...
4.7K
Conservation of Small Populations
16.7K
Small population sizes put a species at extreme risk of extinction due to a lack of variation, and a consequent decrease in adaptability. This weakens the chances of survival under pressures such as climate change, competition from other species, or new diseases. Large populations are more likely to survive pressures such as these, as such populations are more likely to harbor individuals that have genetic variants that are adaptive under new stresses. Small populations are much less...
16.7K
What is Population Genetics?
64.5K
A population is composed of members of the same species that simultaneously live and interact in the same area. When individuals in a population breed, they pass down their genes to their offspring. Many of these genes are polymorphic, meaning that they occur in multiple variants. Such variations of a gene are referred to as alleles. The collective set of all the alleles within a population is known as the gene pool.
64.5K
Population Growth
28.1K
Population size is dynamic, increasing with birth rates and immigration, and decreasing with death rates and emigration. In ideal conditions with unlimited resources, populations can increase exponentially, which plots as a J-shaped growth rate curve of population size against time. This type of curve is characteristic of newly-introduced invasive species, or populations that have suffered catastrophic declines and are rebounding.
28.1K
What are Populations and Communities?
37.4K
Overview
37.4K
Dehydration Synthesis
149.1K
Overview
Dehydration synthesis (also called a condensation reaction) is the chemical process in which two molecules covalently link together to form a new molecule, along with the release of a water molecule. Many physiologically important compounds form by dehydration synthesis reactions, such as complex carbohydrates, proteins, DNA, and RNA.
Synthesis of carbohydrates
Sugar molecules are covalently linked together by dehydration synthesis. During the reaction, the hydroxyl (-OH) group from...
Dehydration synthesis (also called a condensation reaction) is the chemical process in which two molecules covalently link together to form a new molecule, along with the release of a water molecule. Many physiologically important compounds form by dehydration synthesis reactions, such as complex carbohydrates, proteins, DNA, and RNA.
Synthesis of carbohydrates
Sugar molecules are covalently linked together by dehydration synthesis. During the reaction, the hydroxyl (-OH) group from...
149.1K

