Why do we stay afraid for so long when the brain’s first alarm fires so fast?
Peer-Reviewed Publication
Updates every hour. Last Updated: 23-Oct-2026 11:17 ET (23-Oct-2026 15:17 GMT/UTC)
Salk neuroscientists identify and characterize new region in the brain’s fear circuit called the amygdalostriatal transition zone (ASt). ASt neurons fire with more strength and for longer than the amygdala, which has historically been considered the brain’s fear center. Findings explain why fear responses like freezing can last so long and point to therapeutic innovations for disorders like PTSD, anxiety.
Cambridge scientists have shown that girls and boys show differences in what they pay attention to, even at birth. Since these differences are present so early, it is possible they emerge due to prenatal factors. The findings suggest that some psychological differences between males and females (such the development of social skills) may be influenced by both prenatal biology as well as later experience.
Social behavior is heritable but heterogeneous. An international team of EAGLE and R2D2-MH consortia researchers, led by the Max Planck Institute for Psycholinguistics, Nijmegen, the Netherlands, conducted a large-scale genome-wide study of social behaviour in context, investigating two social domains at different ages and with multiple reporters. Identified patterns of genetic signals and genetic correlations, including links with mental health outcomes such as ADHD and autism, differed by context, offering new insight into neurodevelopment.