Journey down memory lane

摘要

The cover embroidery for the August issue of The Lancet Neurology has been adapted from a drawing of a hippocampal slice by Santiago Ramón y Cajal, made 110 years ago.1 The organisation of neurites in the slice provided him with clues to the direction of signal propagation through the hippocampus, indicated by the arrows. This highly intuitive organisation is not only aesthetically appealing, as seen through the microscope, but also of great value in synaptic circuit research.