A new study uncovers how progesterone-responsive neurons in the anterior ventromedial hypothalamus (VMH) toggle between sexual receptivity and rejection in female mice. These neurons are highly active during rejection behaviors, such as kicking or boxing males, when females are outside their fertile phase. During fertility, these neurons receive inhibitory signals, reducing their activity and enabling mating. Using advanced techniques like optog…

Identificado circuito cerebral fundamental para a rejeição sexual em ratos fêmeas

Observador

Portugal

Brain circuit identified as fundamental to sexual rejection in female rats

A female mouse took defensive actions such as running away, kicking, or boxing the male out of the reproductive period. A team led by the Champalimaud Foundation published a study explaining the reason.

Um ratinho fêmea adotou ações defensivas como fugir, pontapear ou boxear o macho fora do período reprodutivo. Uma equipa liderada pela Fundação Champalimaud publicou um estudo onde explica a razão.

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The team also studied how this group of neurons is activated or deactivated depending on

A equipa também estudou como este grupo de neurónios é ativado ou desativado dependendo

Investigadores da Fundação Champalimaud identificam circuito cerebral fundamental para a rejeição sexual

IOL Portugal

Champalimaud Foundation researchers identify brain circuit fundamental to sexual rejection

The mechanism by which the female brain decides to accept or reject sexual advances has been discovered. The study, published in the journal Neuron, shows that the mechanism is much more complex than a simple lack of interest.

A fost descoperit mecanismul prin care creierul feminin decide să accepte sau să respingă avansurile sexuale. Studiul, publicat în revista Neuron, arată că mecanismul este mult mai complex decât o simplă lipsă de interes.

A fost descoperit „butonul respingerii avansurilor sexuale" în creierul feminin

Mediafax

The 'rejection button for sexual advances' has been discovered in the female brain

Female mammals such as rodents accept only mating attempts during their fertile phase. A team of researchers from the Champalimaud Foundation in Lisbon has discovered in mice a fundamental neural circuit for sexual rejection outside the reproductive cycle. Authors of the study published in the journal Neuron have identified a specific network in the previous ventromedial hypothalamus (VMH) that regulates this active sexual rejection in female mi…

Las hembras de mamíferos como los roedores aceptan solo intentos de apareamiento durante su fase fértil. Un equipo de investigadores de la Fundación Champalimaud de Lisboa ha descubierto en ratones un circuito neuronal fundamental para el rechazo sexual fuera del ciclo reproductivo. Los autores del estudio que se publica en la revista Neuron han identificado una red específica en el hipotálamo ventromedial (VMH) anterior que regula este rechazo …

Encuentran un circuito neuronal clave en el rechazo sexual de ratones hembra

The Objective | Periodismo ethos

Madrid

Community of Madrid

Spain

Find a key neural circuit in female mice sexual rejection

Neuroscience News

How the Brain Toggles Female Sexual Rejection and Acceptance

In a demonstration of how biology shapes behavior, researchers have identified a specific group of brain cells that act as "gatekeepers" for sexual

ScienceBlog.com

Scientists Uncover Neural Circuit That Controls Female Sexual Rejection

The authors of the study published in the journal Neuron have identified a specific network in the previous ventromedial hypothalamus (VVM) that regulates this active sexual rejection in female mice outside of their fertile stage. The finding deepens the brain mechanisms that shape behavior according to internal and external signals. Rejection, an active behavior Sexual rejection does not imply only lack of interest. “It is an active behavior,” …

Los autores del estudio que se publca en la revista Neuron han identificado una red específica en el hipotálamo ventromedial (VMH) anterior que regula este rechazo sexual activo en ratones hembra fuera de su etapa fértil. El hallazgo profundiza en los mecanismos cerebrales que moldean la conducta según las señales internas y externas. El rechazo, un comportamiento activo El rechazo sexual no implica únicamente la falta de interés. “Es un comport…

How the Brain Toggles Female Sexual Rejection and Acceptance

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