title: Modification of spectral features by nonhuman primates.
abstract: Ackermann et al. discuss the lack of evidence for vocal control in nonhuman primates. We suggest that nonhuman primates may be capable of achieving greater vocal control than previously supposed. In support of this assertion, we discuss new evidence that nonhuman primates are capable of modifying spectral features in their vocalizations.
authors.affiliation: Department of Psychology and Program in Linguistics,Pennsylvania State University,University Park, PA 16802.djw21@psu.eduhttp://weisslab.weebly.com/
authors.forename: Daniel J
authors.initials: DJ
authors.lastname: Weiss
authors.affiliation: Naval Facilities Engineering Command, Atlantic, Norfolk, VA 23508.hotchkin.cara@gmail.com.
authors.forename: Cara F
authors.initials: CF
authors.lastname: Hotchkin
authors.affiliation: Department of Biology,Syracuse University,Syracuse, NY 13244.sparks@syr.eduhttp://parkslab.syr.edu/
authors.forename: Susan E
authors.initials: SE
authors.lastname: Parks
mesh_terms: D000819:Animal Communication; D000818:Animals; D005075:Biological Evolution; D003142:Communication; D006801:Humans; D011323:Primates / Q000502:physiology*; D013060:Speech / Q000502:physiology*