Take three and pay for only two with coupon TRIPLEEN

Philip Lieberman was a cognitive scientist at Brown University, Providence, Rhode Island, United States. Originally trained in phonetics, he wrote a dissertation on intonation. His career focused on topics in the evolution of language, and particularly the relationship between the evolution of the vocal tract, the human brain, and the evolution of speech, cognition and language.
Philip Lieberman was a cognitive scientist at Brown University, Providence, Rhode Island, United States. Originally trained in phonetics, he wrote a dissertation on intonation. His career focused on topics in the evolution of language, and particularly the relationship between the evolution of the vocal tract, the human brain, and the evolution of speech, cognition and language.