The origin, naming, and impact of Zing-Yang Kuo's Vaseline technique.

内容摘要

Zing-Yang Kuo (1898-1970), an iconic figure in Chinese and global psychology, invented the "Kuo Vaseline technique"-a pioneering method for observing avian embryonic behavior-using chicken eggs. However, existing research lacks clarity on three key aspects: the exact invention time, the developmental context of its naming, and its comprehensive academic impact. Based on firsthand historical materials and international literature, this study systematically sorts out the invention process and naming development of the technique and deeply analyzes its influences on research methodology, interdisciplinary collaboration, and academic inheritance. The findings supplement the research on original techniques in the history of Chinese psychology and highlight the unique contributions of Chinese scholars to global embryonic behavior research. (PsycInfo Database Record (c) 2026 APA, all rights reserved).