The following year, 1983, he was awarded a fellowship at the American Association for the Advancement of Science, where he later served as president (1999–2001).
Ao ano seguinte, en 1983, foille concedida unha bolsa de estudos de posgraduado da Asociación Americana para o Avance da Ciencia (American Association for the Advancement of Science, AAAS), onde máis tarde desempeñaría o cargo de presidente (1999-2001).