In another follow-up study of phoneme-and stress-contrast sensitivity, Dupoux and colleagues (Dupoux, Peperkamp and Sebastian-Galles, 2001) found that adult L1 speakers of Spanish and French performed similarly on the phoneme contrast judgment (i.e., /kypi/-/kyti/).
the Spanish-native monolinguals significantly outperformed the French-native monolinguals on the stress contrast judgment (i.e, /'kipi/-/ki'pi/).