Neuroscientists at the Universities of Michigan at Ann Arbor and Maryland injected saltwater into the jaw muscles of healthy young male volunteers to cause pain.
Neuroscientists at the Universities of Michigan at Ann Arbor and Maryland injected saltwater into the jaw muscles of healthy young male volunteers to cause pain.
美国安娜堡密西根大学及马里兰大学的神经科学家，把盐水注射到年轻男性志愿者的下巴肌肉以引起疼痛。