Synthetic Biology Research Group
s, a virus is injected into the mouse brain, which leads to the expression of a calcium sensor. A mini-microscope lens is then implanted in the same brain region. Again, the animals are anesthetized and [...] receive pain medication. After about 3 to 4 weeks, during which the animal is allowed to recover, a mini-microscope (weighing less than 2 grams) can then be used to record the activity of several hundred