On April 12, 2026, Marina Picciotto, President of the American Association for the Advancement of Science (AAAS), former President of the Society for Neuroscience, and Professor of Psychiatry at Yale University, delivered a keynote speech at the Yale China-U.S. Summit. She stated that current decisions regarding scientific exchanges, talent development, and funding frameworks between China and the United States will profoundly shape the direction of global science for decades to come.
Professor Picciotto noted that China and the United States currently contribute 40% to 50% of global scientific output and rank first and second worldwide in research and development expenditure. This collaboration has driven significant breakthroughs in fields such as genetics and neuroscience. She cited a 2025 research paper published in *Nature* by Kitamura, Kitajima, and Okamura. Professor Picciotto pointed out that the signing of the U.S.-China Science and Technology Cooperation Agreement in 1979 greatly accelerated the rapid growth of jointly published papers, fostering extensive academic exchanges between China and the United States, Europe, and other parts of the world. By the 2010s, China had grown into a scientific powerhouse leading globally in multiple fields.
Discussing changes in academic publishing, Picciotto stated that China surpassed the United States in total paper publications around 2017, accounting for 20% to 25% of global peer-reviewed papers by the early 2020s. Meanwhile, the citation impact of Chinese research papers has become highly competitive across numerous scientific disciplines. Top-tier journals are establishing a presence in China precisely because they want to be where cutting-edge research is happening, sending editors to locations producing breakthrough results.
Regarding talent mobility, Picciotto highlighted that Chinese students constitute the largest group of international graduate students in STEM fields in the United States, with approximately 25% to 30% of STEM PhDs awarded to Chinese scholars. Tens of thousands of Chinese researchers serve as faculty or scientists at U.S. universities. Between 2002 and 2015, the rate of knowledge flow from the United States to China was almost equal to that from China to the United States. This two-way flow has become a vital driver of global scientific research growth. In her field of neuroscience, many forces propelling new ideas originate from Chinese teams, with numerous researchers having received training in the United States, indicating that Sino-U.S. interaction in talent development holds profound significance for both nations and global science.
Professor Picciotto also addressed the complexities facing U.S.-China scientific relations since 2018. The U.S. Department of Justice's "China Initiative" (2018-2022) created a chilling effect. The National Institutes of Health (NIH) and the National Science Foundation (NSF) tightened source-of-funding disclosure requirements, increasing compliance burdens for universities. Visa delays and denials significantly impacted the mobility of Chinese researchers. Citing a 2025 survey by The Pie, she noted that 88% of affected international students reported feeling less sense of belonging in the United States, and 81% had developed alternative plans to go to third countries. Concurrently, peer-review manipulation and paper mills have become global issues, while concerns over intellectual property and data-sharing transparency have somewhat dampened collaboration willingness. The termination of the U.S.-China Science and Technology Agreement in 2025 further altered the landscape of short-term interactions.
Picciotto emphasized that global challenges urgently require Sino-American cooperation. Both nations host world-leading laboratories in artificial intelligence, and shared safety standards would benefit all humanity. Their respective brain science initiatives have highly complementary goals. Non-human primate research has greatly benefited from U.S.-China collaboration. Data from the Nature Index shows that between 2019 and 2023, China was the United States' most important international partner in neuroscience. She stressed that papers co-authored by U.S. and Chinese researchers demonstrate superior citation impact compared to papers published by either country alone, providing strong evidence of the synergistic effects of collaboration.
Professor Picciotto also analyzed the complementary strengths of the two countries: the United States excels in basic research, boasting a diverse, decentralized academic system, a robust ecosystem for commercializing intellectual property, and a culture of interdisciplinary innovation. China possesses unique advantages in the scale and speed of applied research, long-term national science planning, extensive pipelines translating manufacturing prowess into research, and a vast reserve of STEM talent. She believes this complementarity means the inherent logic for cooperation is far stronger than that for divergence. Many U.S.-China academic collaborations continue to advance despite current political friction. Open science norms are fostering greater data transparency, joint graduate training programs remain valuable talent pipelines, and the mutual understanding built through academic exchanges is irreplaceable by any other means.
Looking ahead, Professor Picciotto concluded that decisions made today concerning scientific exchange, talent development, and funding frameworks will deeply influence the trajectory of global science for the coming decades.
Comments