Monkeys match the number of voices they hear to the number of faces they see. Jordan, K. E, Brannon, E. M, Logothetis, N. K, & Ghazanfar, A. A Curr Biol, 15(11):1034-8, 2005. doi abstract bibtex Convergent evidence demonstrates that adult humans possess numerical representations that are independent of language [1, 2, 3, 4, 5 and 6]. Human infants and nonhuman animals can also make purely numerical discriminations, implicating both developmental and evolutionary bases for adult humans' language-independent representations of number [7 and 8]. Recent evidence suggests that the nonverbal representations of number held by human adults are not constrained by the sensory modality in which they were perceived [9]. Previous studies, however, have yielded conflicting results concerning whether the number representations held by nonhuman animals and human infants are tied to the modality in which they were established [10, 11, 12, 13, 14 and 15]. Here, we report that untrained monkeys preferentially looked at a dynamic video display depicting the number of conspecifics that matched the number of vocalizations they heard. These findings suggest that number representations held by monkeys, like those held by adult humans, are unfettered by stimulus modality.
@Article{Jordan2005,
author = {Kerry E Jordan and Elizabeth M Brannon and Nikos K Logothetis and Asif A Ghazanfar},
journal = {Curr Biol},
title = {Monkeys match the number of voices they hear to the number of faces they see.},
year = {2005},
number = {11},
pages = {1034-8},
volume = {15},
abstract = {Convergent evidence demonstrates that adult humans possess numerical
representations that are independent of language [1, 2, 3, 4, 5 and
6]. Human infants and nonhuman animals can also make purely numerical
discriminations, implicating both developmental and evolutionary
bases for adult humans' language-independent representations of number
[7 and 8]. Recent evidence suggests that the nonverbal representations
of number held by human adults are not constrained by the sensory
modality in which they were perceived [9]. Previous studies, however,
have yielded conflicting results concerning whether the number representations
held by nonhuman animals and human infants are tied to the modality
in which they were established [10, 11, 12, 13, 14 and 15]. Here,
we report that untrained monkeys preferentially looked at a dynamic
video display depicting the number of conspecifics that matched the
number of vocalizations they heard. These findings suggest that number
representations held by monkeys, like those held by adult humans,
are unfettered by stimulus modality.},
doi = {10.1016/j.cub.2005.04.056},
keywords = {15936274},
}
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