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

Aggression01:47

Aggression

28.8K
Humans engage in aggression when they seek to cause harm or pain to another person. Aggression takes two forms depending on one’s motives: hostile or instrumental. Hostile aggression is motivated by feelings of anger with intent to cause pain; a fight in a bar with a stranger is an example of hostile aggression. In contrast, instrumental aggression is motivated by achieving a goal and does not necessarily involve intent to cause pain (Berkowitz, 1993); a contract killer who murders for...
28.8K
Optimal Arousal Theory01:23

Optimal Arousal Theory

394
The optimal arousal theory suggests that performance is maximized when an individual experiences a moderate level of arousal. This theory is closely tied to the Yerkes-Dodson law, which illustrates an inverted U-shaped relationship between arousal and performance. The law, formulated by psychologists Robert Yerkes and John Dodson, implies an ideal arousal level for optimal performance, and deviations from this level can lead to declines in effectiveness.
Inverted U-Shaped Performance Curve
The...
394
Facial Feedback Hypothesis01:24

Facial Feedback Hypothesis

340
Charles Darwin proposed that facial expressions are an evolutionary adaptation for communication. He argued that these expressions are not influenced by culture but are universal across species. For example, a snarling expression with exposed teeth signals a threat in many animals, including humans. Darwin also suggested that displaying an emotion can intensify the feeling. Smiling, for example, could enhance one's sense of happiness. This idea laid the foundation for understanding the role...
340
Automatic Processing and Automatic Social Behavior01:28

Automatic Processing and Automatic Social Behavior

58
Automatic processing refers to the cognitive operations that occur without conscious intent or awareness, playing a fundamental role in shaping social cognition and behavior. These processes enable individuals to navigate complex social environments efficiently by relying on mental shortcuts and pre-existing knowledge structures known as schemas. One of the most influential mechanisms underlying automatic processing is priming, which subtly activates mental representations through exposure to...
58
Causes of Social Behavior II: Cognitive Processes01:15

Causes of Social Behavior II: Cognitive Processes

84
Cognitive processes affect social behavior by guiding how individuals perceive, interpret, and respond to social stimuli. These mental processes enable individuals to assess others' behaviors, attribute causes to their actions, and form expectations based on past experiences.Causes of Behavior and Social JudgmentsIndividuals determine the causes of others' behaviors by distinguishing between personal traits and external circumstances. For example, if a friend frequently arrives late, an...
84

También podría leer

Artículos Relacionados

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

Ordenar por
Same author

Conditioned accumbal dopamine transients forecast individual preference for drug versus natural rewards and compulsive behavior.

Nature neuroscience·2026
Same author

Prefrontal long-range somatostatin inhibitory projections modulate fear expression.

Frontiers in cellular neuroscience·2026
Same author

Multipair phase-modulated temporal interference electrical stimulation combined with fMRI.

Cell systems·2026
Same author

The spatiotemporal dynamics of postnatal vascularization in the mouse brain.

Cell·2026
Same author

Prefrontal neural geometry of learned cues guides motivated behaviours.

Nature·2026
Same author

Protocol for reproducible EZ clearing and labeling, including optimized steps and quantified fluorescence retention on mouse tissue.

STAR protocols·2025
Same journal

Incoming US science academy chief vows to 'double down' on research.

Nature·2026
Same journal

Author Correction: Synthesis of enantioenriched atropisomers by biocatalytic deracemization.

Nature·2026
Same journal

Electrodeposited self-assembled molecules for perovskite photovoltaics.

Nature·2026
Same journal

Neutrino's nursery found: the 'Shadow Blaster'.

Nature·2026
Same journal

Dementia risk in middle-aged people linked to a blood protein.

Nature·2026
Same journal

Daily briefing: What's really happening with trust in science.

Nature·2026
Ver todos los artículos relacionados

Video Experimental Relacionado

Updated: Oct 28, 2025

Continuous Theta Burst Stimulation of the Posterior Medial Frontal Cortex to Experimentally Reduce Ideological Threat Responses
06:42

Continuous Theta Burst Stimulation of the Posterior Medial Frontal Cortex to Experimentally Reduce Ideological Threat Responses

Published on: September 28, 2018

11.8K

Codificación dinámica de la población prefrontal durante los comportamientos defensivos

Daniel Jercog1,2, Nanci Winke3,4, Kibong Sung3,4,5

  • 1Univ. Bordeaux, Neurocentre Magendie, U1215, Bordeaux, France. daniel.jercog@inserm.fr.

Nature
|July 15, 2021
PubMed
Resumen
Este resumen es generado por máquina.

La corteza prefrontal dorsomedial (dmPFC) vincula dinámicamente las señales de amenaza a las acciones defensivas. La actividad transitorio de dmPFC antes del inicio de la acción predice comportamientos de evitación exitosos, cruciales para la supervivencia.

Más Videos Relacionados

Peering into the Dynamics of Social Interactions: Measuring Play Fighting in Rats
15:01

Peering into the Dynamics of Social Interactions: Measuring Play Fighting in Rats

Published on: January 18, 2013

15.6K
Correlating Behavioral Responses to fMRI Signals from Human Prefrontal Cortex: Examining Cognitive Processes Using Task Analysis
10:33

Correlating Behavioral Responses to fMRI Signals from Human Prefrontal Cortex: Examining Cognitive Processes Using Task Analysis

Published on: June 20, 2012

13.0K

Videos de Experimentos Relacionados

Last Updated: Oct 28, 2025

Continuous Theta Burst Stimulation of the Posterior Medial Frontal Cortex to Experimentally Reduce Ideological Threat Responses
06:42

Continuous Theta Burst Stimulation of the Posterior Medial Frontal Cortex to Experimentally Reduce Ideological Threat Responses

Published on: September 28, 2018

11.8K
Peering into the Dynamics of Social Interactions: Measuring Play Fighting in Rats
15:01

Peering into the Dynamics of Social Interactions: Measuring Play Fighting in Rats

Published on: January 18, 2013

15.6K
Correlating Behavioral Responses to fMRI Signals from Human Prefrontal Cortex: Examining Cognitive Processes Using Task Analysis
10:33

Correlating Behavioral Responses to fMRI Signals from Human Prefrontal Cortex: Examining Cognitive Processes Using Task Analysis

Published on: June 20, 2012

13.0K

Área de la Ciencia:

  • La neurociencia
  • Neurociencia del comportamiento

Sus antecedentes:

  • La detección de amenazas y las respuestas conductuales adaptativas son vitales para la supervivencia.
  • La corteza prefrontal dorsomedial (dmPFC) juega un papel clave en la regulación de los comportamientos relacionados con la amenaza.
  • Los mecanismos precisos que vinculan la percepción de amenazas con las acciones defensivas dentro de las redes prefrontales siguen sin estar claros.

Objetivo del estudio:

  • Investigar cómo los estímulos de predicción de amenazas y los comportamientos defensivos se codifican dinámicamente en la actividad neuronal de dmPFC.
  • Aclarar el papel de la dinámica de la población dmPFC en el inicio y la selección de respuestas defensivas adaptativas.

Principales métodos:

  • Grabaciones extracelulares en ratones para capturar la actividad neuronal.
  • Decodificación neuronal para interpretar las señales neuronales a nivel de población.
  • Manipulaciones farmacológicas y optogenéticas para sondear la función del dmPFC.
  • Análisis del comportamiento para evitar amenazas.

Principales resultados:

  • La actividad de la población dmPFC al inicio del estímulo codifica representaciones de amenaza sostenidas, pero no predice el resultado de la acción.
  • La actividad transitoria de la población dmPFC anterior al inicio de la acción distingue con fiabilidad los ensayos evitados de los no evitados.
  • La inhibición optogenética de dmPFC deterioró la selección de la respuesta defensiva adaptativa de una manera dependiente del tiempo.

Conclusiones:

  • La selección de comportamiento defensivo adaptativo se basa en un proceso dinámico dentro de las redes prefrontales.
  • El dmPFC integra la información de amenaza y las señales de inicio de acción para guiar las respuestas adaptativas.
  • La dinámica neuronal en el dmPFC es crítica para vincular las señales de amenaza a las salidas de comportamiento apropiadas.