陈言

Chen Yan: available public information about this author is limited, and no nationality, birth and death dates, or detailed biography has been confirmed. Judging from the four works held in the collection, the writing spans two fields: traditional medicine and popular science. On the medical side are Sanyin Jiyi Bingzheng Fanglun, which classifies diseases, syndromes, and formulas by causes, and Yang Jingzhai Zhenjiu Quanshu, a work on acupuncture theory and clinical point selection; both belong to the editing and transmission of classical Chinese medical texts. On the popular-science side, A Brief History of Brain-Computer Interfaces presents the technological development of brain-computer interfaces in concise historical form. Together these works suggest an author comfortable with both the editorial conventions of classical medical compendia and accessible accounts of emerging technology, with a style oriented toward organized explanation rather than personal reflection. Given the limited public record, details of biography and academic lineage cannot be described.