Experiments have found that when mice are suddenly exposed to loud sounds (fear), specific cells in the amygdala of the mouse brain are more active, and a special "fear protein" in the brain increases. "GluAl" substance. Mice lacking "GluAl" maintain fear memory associated with loud sounds, while other mice do not. Therefore, experiments have concluded that the development of "GluAl" drugs can help people remove the pain or fear Wait for bad memories, and leave only happy times. Which of the following cannot be questioned if it is true /. ['the nervous system between mice and humans is very large, and the results of mouse experiments are difficult to apply to humans.', 'the amygdala is responsible for the generation and regulation of negative emotions such as anxiety, irritability, fright and fear.', 'GluAl deletes horror memories and also deletes self-protected memories.', 'Taking GluAls for a long time may cause amnesia.']