动物实验,脑神经回路 z-bo 2022-01-07 405

　　A new Canadian study shows that the fear caused by hunters changes the behavior of animals, leaving quantifiable and permanent traces on the brain circuits of wild animals. The so-called post-traumatic stress disorder in psychology is a typical symptom of this effect. Researchers from Western University of Ontario in Canada published an article in the British "Science Report" magazine saying that the sounds of predators such as Hay birds were played for two consecutive days, while the control group played non-predator sounds. sound. I will live outdoors with black breasts for 7 days. Seven days later, when the researchers encountered a predator, they replayed the black-hat citrus warning record and measured the levels of gene transcription factors in the tonsils and sponges of a single black-hat citrus.

　　According to the researchers, the above experiment not only stopped when the fear caused by the predator decides "resist or escape" when the predator saw the carnivore of the animal, but also stopped after the event. It shows that it can be quantified even after 7 days. And observe. More and more ecological researchers have proposed that post-traumatic stress disorder is actually the original mechanism of evolution, in which people are worried about maximizing survival. Researchers believe that if predators can successfully avoid similar events in the future, their impact on animals’ fear memories will be an evolutionary benefit. New research also shows that post-traumatic stress disorder is a natural phenomenon. This is of great significance for biomedical researchers, mental health practitioners and ecologists to engage in related work.