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The reporter learned from the University of Science and Technology of China on November 8 that the research team of Professor Xiong Wei from the Department of Life Sciences and Medicine and the First Affiliated Hospital of the school revealed the cochlear nucleus-pontine caudal reticular nucleus-spinal cord motor neurons.
For all mammals, including humans, sudden sound or tactile stimulation can induce the body to produce a subconscious startle reflex within milliseconds, which is what we often call "startle"
The startle reflex exists in the entire life cycle of mammals.
The research team first used c-fos staining, in-vivo electrophysiological recording, and in-vivo fiber-optic recording, and found that when sound induces startle reflex, glutamatergic neurons located in the reticular nucleus of the pontine caudal side of the brainstem are activated in large numbers
Subsequently, the research team carried out viral tracing on the upstream and downstream of the RtTg nucleus and found that the glutamatergic neurons in the RtTg directly receive excitatory projections from the cochlear nucleus