Jove
Visualize
Contáctanos
JoVE
x logofacebook logolinkedin logoyoutube logo
ACERCA DE JoVE
Visión GeneralLiderazgoBlogCentro de Ayuda JoVE
AUTORES
Proceso de PublicaciónConsejo EditorialAlcance y PolíticasRevisión por ParesPreguntas FrecuentesEnviar
BIBLIOTECARIOS
TestimoniosSuscripcionesAccesoRecursosConsejo Asesor de BibliotecasPreguntas Frecuentes
INVESTIGACIÓN
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchivo
EDUCACIÓN
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualCentro de Recursos para ProfesoresSitio de Profesores
Términos y Condiciones de Uso
Política de Privacidad
Políticas

Videos de Conceptos Relacionados

The Evidence for Evolution02:55

The Evidence for Evolution

48.4K
Genetic variations accumulating within populations over generations give rise to biological evolution. Evolutionary changes can result in the formation of novel varieties and entire new species. These changes are responsible for the diverse forms of life inhabiting the planet. The evidence for evolution suggests that all living organisms descended from common ancestors.
48.4K
Convergent Evolution01:54

Convergent Evolution

33.1K
Evolution shapes the features of organisms over time, ensuring that they are suited for the environments in which they live. Sometimes, selection pressure leads to the rise of similar but unrelated adaptations in organisms with no recent common ancestors, a process known as convergent evolution.
33.1K
Protein Networks02:26

Protein Networks

4.6K
An organism can have thousands of different proteins, and these proteins must cooperate to ensure the health of an organism. Proteins bind to other proteins and form complexes to carry out their functions. Many proteins interact with multiple other proteins creating a complex network of protein interactions.
These interactions can be represented through maps depicting protein-protein interaction networks, represented as nodes and edges. Nodes are circles that are representative of a protein,...
4.6K
Eukaryotic Evolution01:24

Eukaryotic Evolution

42.4K
The endosymbiont theory is the most widely accepted theory of eukaryotic evolution; however, its progression is still somewhat debated. According to the nucleus-first hypothesis, the ancestral prokaryote first evolved a membrane to enclose DNA and form the nucleus. Conversely, the mitochondria-first hypothesis suggests that the nucleus was formed after endosymbiosis of mitochondria.
Contrary to the endosymbiont theory, the eukaryote-first hypothesis proposes that the simpler prokaryotic and...
42.4K
Synteny and Evolution02:31

Synteny and Evolution

3.8K
John H. Renwick first coined the term “synteny” in 1971, which refers to the genes present on the same chromosomes, even if they are not genetically linked. The species with common ancestry tend to show conserved syntenic regions. Therefore, the concept of synteny is nowadays used to describe the evolutionary relationship between species.
Around 80 million years ago, the human and mice lineages diverged from the common ancestor. During the course of evolution, the ancestral...
3.8K
Network Covalent Solids02:18

Network Covalent Solids

16.2K
Network covalent solids contain a three-dimensional network of covalently bonded atoms as found in the crystal structures of nonmetals like diamond, graphite, silicon, and some covalent compounds, such as silicon dioxide (sand) and silicon carbide (carborundum, the abrasive on sandpaper). Many minerals have networks of covalent bonds.
To break or to melt a covalent network solid, covalent bonds must be broken. Because covalent bonds are relatively strong, covalent network solids are typically...
16.2K

También podría leer

Artículos Relacionados

Artículos vinculados a este trabajo por autores compartidos, revista y gráfico de citas.

Ordenar por
Same author

Discovering Novel intracranial EEG Biomarkers of Seizure Generating Tissue through Time-Frequency Analysis.

medRxiv : the preprint server for health sciences·2026
Same author

Pediatric epilepsy surgery: Global survey of invasive explorations.

Epilepsia·2026
Same author

Distinct Resting-State Functional Connectivity Profiles in ADHD with and without Prenatal Alcohol Exposure.

medRxiv : the preprint server for health sciences·2026
Same author

Anterior middle cingulate cortex gamma-aminobutyric acid level is elevated in children with both familial and prenatal alcohol exposure-associated attention deficit hyperactivity disorder.

medRxiv : the preprint server for health sciences·2026
Same author

Pediatric epilepsy surgery: Global survey of referral and presurgical evaluation practices.

Epilepsia·2026
Same author

Imaging diagnosis of cystic intraparenchymal brain neoplasms.

Japanese journal of radiology·2026

Video Experimental Relacionado

Updated: Feb 13, 2026

Mutagenesis and Functional Selection Protocols for Directed Evolution of Proteins in E. coli
09:01

Mutagenesis and Functional Selection Protocols for Directed Evolution of Proteins in E. coli

Published on: March 16, 2011

31.2K

Dinámicas Distintivas de Redes Talámico-Corticales Espectrales y Direccionales Definen la Evolución de Convulsiones

Saarang Panchavati, Atsuro Daida, Sotaro Kanai

    medRxiv : the preprint server for health sciences
    |February 12, 2026
    PubMed
    Resumen
    Este resumen es generado por máquina.

    Este estudio revela cómo cambian las dinámicas de redes talámico-corticales durante las convulsiones de epilepsia focal. Las características del EEG talámico pueden predecir los estados de convulsión, guiando la neuromodulación adaptativa para un mejor control de las convulsiones.

    Palabras clave:
    epilepsia focalredes talámico-corticalesdinámicas de redneuromodulaciónEEG talámicoclasificación de estado de convulsióncontrol de convulsiones

    Más Videos Relacionados

    Visualization of Thalamocortical Axon Branching and Synapse Formation in Organotypic Cocultures
    06:16

    Visualization of Thalamocortical Axon Branching and Synapse Formation in Organotypic Cocultures

    Published on: March 28, 2018

    6.9K
    In Vitro Directed Evolution of a Restriction Endonuclease with More Stringent Specificity
    09:16

    In Vitro Directed Evolution of a Restriction Endonuclease with More Stringent Specificity

    Published on: March 25, 2020

    7.8K

    Videos de Experimentos Relacionados

    Last Updated: Feb 13, 2026

    Mutagenesis and Functional Selection Protocols for Directed Evolution of Proteins in E. coli
    09:01

    Mutagenesis and Functional Selection Protocols for Directed Evolution of Proteins in E. coli

    Published on: March 16, 2011

    31.2K
    Visualization of Thalamocortical Axon Branching and Synapse Formation in Organotypic Cocultures
    06:16

    Visualization of Thalamocortical Axon Branching and Synapse Formation in Organotypic Cocultures

    Published on: March 28, 2018

    6.9K
    In Vitro Directed Evolution of a Restriction Endonuclease with More Stringent Specificity
    09:16

    In Vitro Directed Evolution of a Restriction Endonuclease with More Stringent Specificity

    Published on: March 25, 2020

    7.8K

    Área de la Ciencia:

    • Neurociencia
    • Investigación sobre Epilepsia
    • Neuromodulación

    Sus antecedentes:

    • La neuromodulación dirigida a los núcleos talámicos es un tratamiento creciente para la epilepsia focal resistente a los medicamentos.
    • Existen pocos estudios de EEG intracraneal en humanos sobre las interacciones talámico-corticales durante las convulsiones.

    Objetivo del estudio:

    • Definir las dinámicas de la red talámico-cortical específicas de frecuencia desde el inicio hasta la terminación de la convulsión.
    • Comparar la activación de la red talámico-cortical y cortico-cortical.
    • Evaluar si las características del EEG talámico pueden clasificar los estados de convulsión para la neuromodulación adaptativa.

    Principales métodos:

    • Análisis retrospectivo de grabaciones de estéreo-EEG de 19 pacientes con epilepsia con muestreo talámico y cortical.
    • Cálculo de la potencia espectral, la coherencia imaginaria y la causalidad de Granger en bandas lentas, beta y gamma.
    • Entrenamiento de clasificadores de bosque aleatorio utilizando características talámicas para distinguir los estados iictales de los no iictales.

    Principales resultados:

    • Se observó la participación talámica al inicio de la convulsión (81,2%) y aumentó hasta la terminación.
    • La conectividad talámico-cortical en bandas lentas y beta aumentó durante las convulsiones.
    • La clasificación del estado de convulsión alcanzó una alta precisión (AUC ~0,83) utilizando características de potencia espectral y conectividad talámicas.

    Conclusiones:

    • Se definieron dinámicas de red talámico-cortical coordinadas, específicas de frecuencia y dirección durante las convulsiones.
    • Las interacciones talámico-corticales en banda lenta y beta son objetivos clave para la neuromodulación adaptativa de circuito cerrado.
    • Los hallazgos proporcionan una base mecanicista para optimizar los resultados de las convulsiones a través de la neuromodulación talámica.