I study the evolution of human linguistic and cognitive ability. In the 1970s my focus was on the evolution of the vocal anatomy that makes human speech possible. My current work concerns the neural circuits that regulate syntax, cognition as well as speech production and other aspects of motor control. These circuits, which involve the basal ganglia and other subcortical structures, are related through their evolutionary history. My research also involves applications such as voice monitoring cognition and emotion, and the assessment of Parkinson's and other neurodegenerative diseases, and of verbal apraxia and its genetic bases in children.

Philip Lieberman's central interest is the nature and evolution of the biological bases of human language and cognition. His studies, 30 years ago, of the limitations placed on the speech capabilities of living apes by their anatomy opened up a new field of study. His inferences concerning the speech capabilities of Neanderthals have led to recent studies that show that fully human speech capabilities are apparent in the fossil record only 50,000 years ago in the upper Palaeolithic

Since the 1980s Lieberman has focused on the properties of the brain that make human speech, language, and cognition possible. His current work focuses on the deep subcortical structures of the brain that work together with the traditional cortical areas of the brain, Broca's and Wernicke's areas together with many other neural structures, to confer these human capabilities. He has proposed that brain mechanisms that were initially adapted for motor control were modified by Darwinian processes to make higher cognitive and linguistic ability possible. The studies that he and his colleagues are conducting to test these premises include tests of patients with Parkinson's Disease and climbers ascending Mount Everest whose brains are stressed by the lack of oxygen at extreme altitudes.

Lieberman continues to study the aspects of speech that convey emotion and linguistic information. Students who are interested in human evolution and the nature of the brain are welcome to participate in these projects. The findings of these studies — and those of many other linguistic, neurophysiologic, and genetic studies — refute the linguistic theories of Noam Chomsky that have been popularized by Steven Pinker.In Lieberman's most recent book, Toward an evolutionary biology of language , he demonstrates the central role of speech in human language and that, contrary to Chomsky and Pinker, the brain bases of language, thinking, and motor control are intertwined. His other research involves the photographic documentation of traditional Tibetan culture in the Himalaya.

Lieberman’s current sponsored research involves a study funded by the National Space Biomedical Research Institute that is directed at perfecting a method whereby cognitive deficits resulting from damage to subcortical basal ganglia may be remotely monitored by means of acoustic analysis of speech. This involves studies of mountain climbers ascending Mount Everest and of Parkinson's Disease patients. The project is directed toward the National Aeronautics and Space Administration’s projected manned mission to Mars in 2020, but it will have many applications on earth, including the treatment of neurodegenerative diseases and monitoring aircrews for cognitive dysfunction induced by lack of oxygen.

Lieberman’s other sponsored project is funded by the Getty Foundation for the creation of a DVD documenting the 15th-century Tibetan Buddhist wall paintings of Lo Manthang, a remote temple complex in Nepal, which he photographed for the Getty Foundation in 1993 and 1994. Lieberman also consults for many organizations on speech analysis and voice identification, including the National Transportation Safety Board (NTSB).

National Institutes of Health (NIH) research study, Development of Speech in Infants, Grant #5R01HD09197, 1975-1981; NIH Grant, "Developmental Studies of Speech."

Grants for study of development of speech perception in infants, from John and Caroline Macarthur Foundation, 1984-1986

Research contract on forensic voice analysis — U. S. Department of Justice, Federal Bureau of Investigation, Forensic Sciences, Order # A107193, 1991-1993.

Grants from National Aeronautics and Space Administration (NASA), 1992-95, for extreme-altitude research.

Grant from Federal Aviation Administration (FAA), 1995-1996 — voice analysis of air traffic controllers.

Grant from FAA, 1996-1997 — Acoustic measures of hypoxia in pilots

With Marcia R. Lieberman,"CD-ROM of a photographic survey of Buddhist wall paintings in Mustang, Nepal," funded by Getty Grant Program, Los Angeles, Calif., Reference Works Category, 2000-2004

Joint Research Project on Voice Analysis for Hypoxic Cognitive Dysfunction — U. S. Army, Air Readiness/Effectiveness Measuring (AIREM), Natick Massachusetts 1997—

Grant from National Space Biomedical Research Institute to study speech-based monitoring of cognitive and linguistic ability, and personality alterations, 2001-2004

National Space Biomedical Research Institute: Voice measures of cognition and stress, July 2004-June 2007

Lieberman, P. (in press) Evolution of Language 3: Physical Preadaptations. Encyclopedia of Linguistics, Chicago: Fitzroy Dearborn.

Lieberman, P. (in press) Evolution of Language 1: Overview. Encyclopedia of Linguistics, Chicago: Fitzroy Dearborn.

Hochstadt, J., H. Nakano, P. Lieberman and J. Friedman. In press. The roles of sequencing and verbal working memory in sentence comprehension deficits in Parkinson's disease. Brain and Language.

Lieberman, P. 2006. Towards an evolutionary biology of language. Cambridge Mass: Harvard University Press (in final production)

Lieberman, P. in press. Limits on tongue deformation – Diana monkey formants and the impossible vocal tract shapes proposed by Riede et al. (2005)Journal of Human Evolution

Lieberman, P. 2005. Foreword to, L. Polich, The emergence of the deaf community in Nicaragua. Wahington D.C.: Gallaudet University Press. (pp. vii-x)

Lieberman, P. 2005. review of From hand to mouth:The origins of language." Michael C. Corballis (Princeton and Oxford: Princeton University Press, 2002)Annals of Biology

Lieberman, P., A. Morey, J. Hochstadt, M. Larson, and S. Mather. 2005. Mount Everest: A space-analog for speech monitoring of cognitive deficits and stress. Aviation, Space and environmental Medicine.76:198-207.

Lieberman P. 2005. Lieberman Collection of traditional life in the Tibetan Himalaya and Kathmandu Nepal. Tibetan and Himalayan Digital Library (THDL): URL: http://www.thdl.org/collections/resources/image_search/php then select COLLECTIONS, scroll to Lieberman images sorted by region

Lieberman, P. 2005. The pied piper of Cambridge. The Linguistic Review 2:223-235.

Lieberman, P. 2004. Subcortical brain circuits, speech and the evolution of semeosis. In M. Alac and P. Violi (Eds) In the beginning: evolution of semeosis. pp. 189-205.

Lieberman, P. in press. Review of Evolution of Communication Systems: A Comparative Approach, Eds. Kimbrough,D.O.and Griebel, U. , Cambidge Mass.: M. I. T. Press. (2004). Quarterly Review of Biology.

Lieberman, P. 2003. Motor control, speech and the evolution of human language," In M. H. Christianson and J. R. Hurford, Eds. Language evolution. Oxford: Oxford University Press. pp.255-271.

Lieberman, P. 2003. Language evolution and Innateness. In M. T. Banich and M Mack (Eds) Mind, Brain and Language. Mahwah, NJ: Lawrence Erlbaum Associates, pp. 3-22.

Lieberman, M., P. Lieberman and N. Jorden. 2003. The Tibetan Buddhist Wall Paintings of Mustang. Commissioned by the Getty Foundation. DVD and Brown University Website. http://dl.lib.brown.edu/BuddhistTempleArt

Lieberman, P. 2002. On the nature and evolution of the neural bases of human language. Yearbook of Physical Anthropology 45:36-62

Cymerman A., P. Lieberman, J. Hochstadt, P. B. Rock, G. E. Butterfield, and L. Moore. 2002. Speech motor control and the development of acute mountain sickness. Aviation, Space and Environmental Medicine. 73: 766-772.

Lieberman P. 2002. The evolution of speech in relation to language and thought. In. Harcourt, C. S. and Sherwood, B. R. (Eds) New Perspectives in Primate Evolution and Behaviour. Otley, UK:Westbury, pp. 105-126.

Lieberman, P. 2002 "Evolution of Language," In Encyclopedia of Evolution, M. Pagel, Ed.. Oxford: Oxford University Press. pp. 605-607.

Lieberman, P. in press. Current views on Neanderthal speech capabilities: A reply to Boe et al., (20020. Journal of Phonetics.

Lieberman, P. (2001) On the neural bases of spoken language. In. In the Mind's Eye: Multidisciplinary perspectives on the evolution of the human mind. A. Nowell (Ed.) Ann Arbor: International Monographs in Prehistory. pp. 172-186.

Lieberman, P. 2001 "On the subcortical bases of the evolution of language. In J. Trabant and S. Ward (eds.) New essays on the evolution of language. Berlin-New York:Mouton de Gruyter. pp. 21-40.

Lieberman, P. (2001) Summary of "Human language and our reptilian brain: The subcortical bases of speech, syntax, and thought," Perspectives in Biology and Medicine 44:32-51.

Lieberman, P. 2000. Human language and our reptilian brain: The subcortical bases of speech, syntax, and thought, Cambridge MA: Harvard University Press. (Perspectives in Cognitive Neuroscience). Paperback edition published 2002.

Lieberman, P. 1999. Silver-Tongued Neanderthals? Science 283:175.

Pickett, E. R., Kuniholm, Protopapas, A, Friedman, J. and Lieberman, P. (1998) Selective speech motor, syntax and cognitive deficits associated with bilateral damage to the head of the caudate nucleus and the putamen. A single case study. Neuropsychologia 36:173-188.

Lieberman P. (2002) Eeeva Puhui Helsinki:Terra Cognita (Finnish translation of Eve Spoke (1998)

Lieberman, P. 1998, Eve spoke; Human Language and Human Evolution. New York: W. W. Norton. London: Picador, Macmillan. Selection of the Library of Science Book Club.

Lieberman, M. and P. Lieberman 1998. Switzerland's Mountain Inns, Countryman Press (Division of W W Norton: New York) -- Photographs

Lieberman, P. (1998) Let barking dogs sleep: Commentary on MacNeilage Brain and Behavioral Sciences 21:520-521.

Protopappas, A. and P. Lieberman (1997) Fundamental frequency of phonation and perceived emotional stress. Journal of the Acoustical Society of America 101:267-277.

Lieberman, P. (1997) "Language evolution", in Dulbecco, R. (Ed.) Encyclopedia of Human Biology, 2nd Edition, Academic Press:San Diego, pp. 243-247.

Lieberman, P. 1996. Neuroanatomical structures and segregated circuits. Behavioral and Brain Sciences 19:641

Friedman, J. H., Lieberman, P. Epstein, M., Cullen, K. Sanes, J. N., Lindquist, M. D. and Daamen, M. (1996) Gamma knife Pallidotomy in advanced Parkinson's Disease. Annals of Neurology. 39:535-538.

Lieberman, P. 1996. Universal grammar and critical periods: a most amusing paradox. Behavioral and Brain Sciences 19:735

Lieberman, P. 1996. On Neanderthal speech and human evolution. Behavioral and Brain Sciences 19:156-157.

Lieberman, P. 1995. What Primate Calls Can Tell Us About Human Evolution. in E. Zimmermann, J. D. Newman, and U. Jurgens (Eds.) Current topics in primate vocal communication. New York:Plenum Press, pp. 273-282.

Lieberman, P. 1995. "Manual versus speech motor control and the evolution of language." Behavioral and Brain Sciences.¯

Lieberman, P. 1995. "Manual versus speech motor control and the evolution of language." Behavioral and Brain Sciences.¯

Lieberman, P., B. G. Kanki, A. Protopapas, 1995. "Speech production and cognitive decrements on Mount Everest." Aviation, Space and Environmental Medicine. 66:857-864.

Lieberman, P. 1995. Some biological constraints on the analysis of prosody. In J. L. Morgan and K. Demuth (eds.) Signal to Syntax: Bootstrapping from speech to grammar in early acquisition. Hillsdale NJ: Earlbaum Associate. pp. 55-66.

Lieberman, P. 1994. The origins and evolution of language. Companion Encyclopedia of Anthropology: Humanity, Culture, and Social Life T. Ingold (ed.), London and New York: Routledge, pp. 108-132.

Lieberman, P. 1994. "Human language and human uniqueness." Language and Communication. 14:87-95.

Lieberman, P. 1994. "Hyoid bone position and speech: Reply to Arensburg et al. (1990)." American Journal of Physical Anthropology. 94:275-278.

Lieberman, P. 1994. Human communication: Anatomical and physiological aspects. The Cambridge Encyclopedia of Human Evolution. S. Jones, R. Martin, D. Pilbeam and (eds), Cambridge University Press.pp. 134-137.

Lieberman, P. 1994. "Comment on: Signs of the origin of syntax," Current Anthropology

Lieberman, P., B. G. Kanki, A. Protopapas, E. Reed and J. W. Youngs. 1994. "Cognitive defects at altitude." Nature. 372:325.

Lieberman, P. 1994. "Functional tongues and Neanderthal vocal tract reconstruction: A reply to Houghton (1993)." American Journal of Physical Anthropology 95: 443-452.

Friedman, J. and Lieberman, P. 1994. Speech motor and cognitive deficits of Parkinson's disease. in A. D. Korczn (Ed.) Dementia in Parkinson's Disease. Bologna (Italy):Monduzzi Editore

Lieberman, P. 1994. Biologically bound behavior, free-will, and human evolution. In Conflict and Cooperation in Nature. ed. J. I. Casti, New York: John Wiley and Sons. pp. 133-163.

Seebach, B.S., Intractor, N., Lieberman, P. and Cooper, L.N. 1994. "A model of prenatal acquisition of speech parameters." Proceedings of National Academy of Sciences, USA. 94:7473-7476.

Lieberman, P., B. G. Kanki, A. Protopapas, E. Reed and J. W. Youngs. 1994. Cognitive defects at altitude. Nature. 372:325.

Lieberman, P. 1994. "Are there any purely linguistic deficits?" Journal of Nervous and Mental Diseases. 182:494.

Lieberman, P. 1993. "Old stale wine in an old bottle--Comments on R. Burling, Primate calls, human language and nonverbal communication, Current Anthropology.

Lieberman, P. 1993. "The Kebara KMH-2 Hyoid and Neanderthal Speech." Current Anthropology.

Lieberman, P., 1992. Speech, Collier's Encyclopedia, New York: Macmillan.

Lieberman, P., Laitman, J.T., Reidenberg, J.S., and P. Gannon. 1992. The anatomy, physiology, acoustics and perception of speech: Essential elements in analysis of the evolution of human speech. Journal of Human Evolution. 23:447-467.

Lieberman, P. 1992. "Could an autonomous syntax module have evolved?" Brain and Language 43: 768-774.

Lieberman, P., Kako, E.T., Friedman, J., Tajchman, G., Feldman, L.S., and E.B. Jimenez. 1992. "Speech production, syntax comprehension, and cognitive deficits in Parkinson's disease." Brain and Language, 43: 169-189.

Lieberman, P. 1992. "On Neanderthal Speech and Neanderthal Extinction." Current Anthropology, 33:409-410.

Lieberman, P. 1992. On the Evolution of Language, In J. A. Hawkins and M. Gell-Mann, Eds. The Evolution of Human Languages. Reading, MA, Addison Wesley, pp. 21-48.

Lieberman, P. 1991. Language, Evolution. Encyclopedia of Human Biology, Vol. 4. New York: Academic Press, pp. 641-645.

Lieberman, P. 1991. Uniquely human: The evolution of speech, thought and selfless behavior, Cambridge Ma.: Harvard University Press.Selection of the Library of Science Book Club.

Lieberman, P. 1991. "Preadaptation, natural selection and function." Language & Communication, 11: pp. 63-65.

Lieberman, P., 1991. On the evolutionary biology of speech and syntax. Language Origin: A Multidisciplinary Approach. J. Wind, et al. (eds.), pp 409-429, The Netherlands: Kluwer Academic Publishers.

Lieberman, P. 1990. The Evolution of Human Language. Seminars in Speech and Language. 11:63-76.

Lieberman, P., J. T. Laitman, J. Reidenberg, P. Gannon, and K. Landahl. 1990. "Folk Physiology and Talking Hyoid Bones -- A reply to John Marshall and Arensberg." Nature. 342:486-487.

Lieberman, P., Freidman, J. and L.S. Feldman 1990. "Syntax comprehension deficits in Parkinson's disease." The Journal of Nervous and Mental Disease. 178: 360-365.

Lieberman, P., 1989. The origins of some aspects of human language and cognition. In The human revolution: Behavioral and biological perspectives of the origins of modern humans. P. Mellars and C.B. Stringer (eds.) pp. 391-414, Edinburgh University Press.

Lieberman, P., 1989. Some biological constraints on universal grammar In Learnability and Teachability of Language. Schiefelbusch, R.L. and M. Rice (eds.).

Lieberman, P., 1989. "Comment on Gardner and Gardner-Feedforward vs. feedbackward: An ethological alternative to the law of effect." Behavioral and Brain Sciences

Lieberman, P., 1988. "On Human Speech, Syntax and Language." Human Evolution. 3:3-18.

Lieberman, P., 1988. Language, communication and rule-governed behavior. In H.J. Jerison and I. Jerison, Intelligence and evolutionary biology. Berlin: Springer-Verlag, pp. 143-156.

Lieberman P. and Blumstein, S.E., 1987. Speech Physiology, Acoustics, and Perception Cambridge: Cambridge University Press.

Lieberman, M. and P. Lieberman, 1987. Walking in Switzerland: The Swiss Way. Seattle, WA: The Mountaineers Books., 2nd edition 1997.

Sereno, J.A., Baum S.R., Marean, G.C. and P. Lieberman, 1987. "Acoustic analyses and perceptual data on anticipatory labial coarticulation in adults and children." Journal of the Acoustical Society of America. 81:512-519.

Sereno, J.A. and P. Lieberman, 1987. "Developmental aspects of lingual coarticulation." Journal of Phonetics. 15:247-257.

Lieberman, P., 1987. "A reply to Jacques Mehler's 'Review of the The Biology and Evolution of Language'." Journal of the Acoustical Society of America. 80:15321-1522.

Lieberman, P., 1986. The Developmental Physiology of Speech and the Evolution of Language. in R.J. Ruben, T.R. Van de Water, and E.W, Rubel (eds.) The Biology of Change in Otolaryngology, Amsterdam: Excerpta Medica.

Lieberman, P., 1986. "The Physiology of Cry and Speech in Relation to Linguistic Behavior" in Infant Crying: Theoretical and Research Perspectives, B Lester and D. Boukydis (eds.) Plenium Press.

Lieberman, P., 1986. "Alice in declinationland-A reply to Johan't Hart." Journal of the Acoustical Society of America.

Lieberman, P. 1986. Some Aspects of Dimorphism and Human Speech, Human Evolution 1:67-75. Reprinted in M. Pickford and B. Chiarelli (eds.), Sexual Dimorphism in Living and Fossil Primates. Firenze: (FI) Sedicesimo, 1986.

Lieberman, P. 1986. On Bickerton's Review of the Biology and Evolution of Language. American Anthropologist. 88:701-703.

Lieberman P., 1985. On the Acquisition by Infants: Physiology and Neural Control, in Intonation & Discourse. San Diego, California: College Hill Press, pp. 239-259.

Lieberman, P., Katz, W., Jongman, A, Zimmerman, R. and M. Miller, 1985. Measures of the sentence intonation of read and spontaneous speech in American English." Journal of the Acoustical Society of America, 77:649-657.

Mack, M. and P. Lieberman, 1985. "Acoustic analysis of words produced by a child from 46 to 149 weeks." Journal of Child Language.12:527-550

Lieberman, P., 1985. "On the Evolution of Human Syntactic Ability: It's Pre-adaptive Bases-Motor Control and Speech." Journal of Human Evolution. 14:657-668.

Lieberman, P., Chatillon, M., Schupack, H. and R.H. Meskill, 1985. "Phonetic speech perception deficits in dyslexia." Journal of Speech and Hearing Research 28:480-486.

Lieberman, P., 1985. On the genetic basis of linguistic variation, in Invariance and Variability of Speech Processes. J. Perkell, G. Fant, B. Lindblom, D. Klatt and S. Shattuck-Huffnagel (eds.), Erlbaum.

Lieberman, P., 1984. The Biology and Evolution of Language. Cambridge, MA: Harvard University Press.

Lieberman, P., 1982. The Innate Central Aspect of Intonation. for Festschrift for Dwight L. Bolinger, L.R. Waugh and C.H. von Schoonevelt (eds.).

Chapin, C. Tseng, C.Y. and P. Lieberman, 1982. "Short-term Release Cues for Stop Consonant Place of Articulation in Child Speech." Journal of the Acoustical Society of America. 71:179-186. Ryalls, J.H. and P. Lieberman, 1982. "Fundamental Frequency and Vowel Perception." Journal of the Acoustical Society of America. 72:1631-1633.

Lieberman, P., 1982. "Can Chimpanzees Swallow or Talk?", a reply to Falk." American Anthropologist 84:148-152.

Lieberman, P., 1981. Phonetics and Physiology: Some Current Issues, in Perspectives on Experimental Linguistics. G.E. Pridow, John Benjamins (ed.), Amsterdam, 1-34.

Lieberman, P., 1980. On the development of vowel production in young children, in Child Phonology: Perception and Production, G. Yeni-Komshian and J Kavanagh (eds.), New York: Academic Press, pp. 113-142.

Lieberman, P., 1979. "Hominid evolution, supralaryngeal vocal tract physiology, and the fossil evidence for reconstruction." Brain and Language, 7:101-126.

Lieberman, P. 1978. "A reply to Carlisle and Siegel's assessment of Neanderthal Speech Capabilities." American Anthropologist, 80:676-681.

Lieberman, P., 1977. The Phylogeny of Language in How Animals Communicate, T. A. Sebeok (ed.) Indiana University Press, pp. 3-25.

Lieberman, P., 1977 "More on hominid evolution, speech and language." Current Anthropology 18:550-551.

Lieberman, P., 1977. Speech Physiology and Acoustic Phonetics, New York: Macmillan.

Lieberman, P., 1976 "Interactive models for evolution: Neural mechanisms, anatomy and behavior", in Origins and Evolution of Language and Speech, Annals of the New York Academy of Sciences¯, S.E. Harnard, H.D. Steklis and J. Lancaster (eds.), Vol. 280:660-672.

Lieberman, P., 1976. "Phonetic Features and Physiology: A Reappraisal." Journal of Phonetics, 4:91-112.

Lieberman, P., 1975. On the Origins of Language: An Introduction to the Evolution of Speech, New York: Macmillan.

Lieberman, P., 1975. The Evolution of Speech and Language, in The Role of Speech in Language, James F. Kavanagh and James E. Cutting (eds.).

Lieberman, P., 1975. "More discussion of Neanderthal speech." Linguistic Inquiry, 6:325-329.

Lieberman, P. and E.S. Crelin, 1974. "Speech and Neanderthal Man: A Reply to Carlisle and Siegel." American Anthropologist, 76: No. 2.

Lieberman, P., 1974. A study of the prosodic features. In: Current Trends in Linguistics, Vol. 12, T.A. Sebeok, ed., The Hague: Mouton and Company.

Lieberman, P., 1973. On the evolution of speech. Festschrift for Morris Halle. S. Anderson and P. Kiparsky (eds.) New York: Holt, Rinehart and Winston, 107-127.

Lieberman, M.R. and P. Lieberman, 1973. "Olson's "projective verse" and the use of breath control as a structural element." Language and Style. 5:287-298.

Lieberman, P., Crelin, E.S. and D.H. Klatt, 1973. "Reply to "A Note on Phonetic Ability." American Anthropologist 75:1719-1721.

Lieberman, P. 1973. On the evolution of human language: a unified view. Cognition 2:59-64.

Lieberman, P., 1972. The Speech of Primates. The Hague: Mouton and Company.

Lieberman, P., Harris, K.S., Wolff, P. and L.H. Russell, 1972. "Newborn infant cry and nonhuman-primate vocalizations." Journal of Speech and Hearing Research. 14:718-727.

Lieberman, P., Crelin, E.S. and D. Klatt, 1972. "Phonetic ability and related anatomy of newborn and adult human Neanderthal man and the chimpanzee." American Anthropologist. 74:287-307. (also reprinted in The Speech Code. I.G. Mattingly and S. Engelhardt (eds.) New York: Sinnauer Association.

Sachs, J., Lieberman, P. and D. Erickson, 1972. "Anatomical and cultural determinants of male and female speech." In: Language attitudes: current trends and prospects, Monograph No. 25, Georgetown University Monograph Series in Language and Linguistics, Georgetown University, Washington, DC.

Lieberman, P. and E.S. Crelin, 1971. "On the speech of Neanderthal man." Linguistic Inquiry. 2:203-222.

Lieberman, P., 1971. Speech acoustics and perception. Indianapolis :Bobbs-Merrill.

Lieberman, P.,Sawashima, M., Harris, K.S. and T. Gay, 1970. "The articulatory implementation of the breath-group and prominence: crico-thyroid muscular activity in intonation." Language 46:312-327.

Lieberman, P., 1970. "Towards a unified phonetic theory." Linguistic Inquiry. 1:307-322.

Lieberman, P., D.L. Klatt and W. A. Wilson, 1969. "Vocal tract limitations on the vowel repertoires of rhesus monkey and other nonhuman primates." Science 164: 1185-1187

Lieberman, P., Knudson, R. and J. Mead, 1969. "Determination of the rate of change of fundamental frequency with respect to sub-glottal air pressure during sustained phonation." Journal of the Acoustical Society of America. 45:1537-1543.

Lieberman, P., 1969. "On the acoustic analysis of primate vocalizations." Behavior Research Methods and Instruments. 1:169-174.

Lieberman, P., 1968. "Vocal cord motion in man." Proc. N.Y. Academy of Science Conference on Sound Production in Man. New York Academy of Science 155:28-38.

Lieberman, P., 1968. "Direct comparison of sub-glottal and esophageal pressure during speech." Journal of the Acoustical Society of America 43:1157-1164.

Lieberman, P., 1968. "Primate vocalizations and human linguistic ability." Journal of the Acoustical Society of America. 44:1574-1784. (Reprinted in Perspectives on Human Evolution. 2. Washburn and Dolhinow (eds.) New York: Holt, Reinhart and Winston; and in The Speech Code, Mattingly and Engelhardt (eds.), Sinauer.)

Lieberman, P., 1967. Intonation, perception and language. Cambridge, MA: MIT Press.

Lieberman, P., 1965. "On the acoustic basis of the perception of intonation by linguists." Word 21:40-54. (Reprinted in Readings in the Psychology of Language, Oldfield and Marshall (eds.), London: Penguin Books; and Intonation: Selected Readings, D. Bolinger (ed.), London: Penguin Books).

Lieberman, P., 1963. "Some effects of semantic and grammatical context on the production and perception of speech." Language and Speech. 6(3).

Lieberman, P., 1963. "Some acoustic measures of the fundamental periodicity of normal and pathologic larynges." Journal of the Acoustical Society of America, 35:344-353.

Lieberman, P. and S. B. Michaels, 1962. "Some aspects of fundamental frequency and envelope amplitude as related to the emotional context of speech." Journal of the Acoustical Society of America. 34:922-927. (Reprinted in Intonation: Selected Readings, D. Bolinger (ed.), London: Penguin Books).

Lieberman, P., 1961. "Perturbations in vocal pitch." Journal of the Acoustical Society of America. 33:597-603.

"American English." Journal of the Acoustical Society of America 32:451-454. (Reprinted in Readings in Acoustic Phonetics, D.B. Fry (ed.), London: Penguin Books).

Fellow: American Association for Advancement of Science
Fellow: American Psychological Society
Fellow: American Anthropological Association
Associate: Current Anthropology
Associate: Brain and Behavioral Science
1974: Research Award of the American Speech and Hearing Association.
1985: North Atlantic Treaty Orgnanization (NATO) Visiting Professor, Instituto di Anthropologia, Florence, Italy.
1986: Guest Editor, of Human Evolution.
1990: Nijmegen Lecturer, Max Planck Institut fur Psycholinguistik, Nijmegen Holland, ( aweeklong seriues of lectures) December 10-14, 1990
1991: Distinguished Lecturer, Institute of Philology of the Academia Sinica, Taipei, Taiwan, Republic of China.
1992: - Leading Edge Speaker, Evergreen College, Evergreen, Washington
2005: Concluding Invited Speaker, Alice V. and David H. Morris International Symposium on the Evolution of Language, Stony Brook University, New York
Listed in Who's Who in American Art (photography) as well as other Who's Whos for scientific work.

Professional Memberships:
American Association of Physical Anthropologists
American Anthropological Association
Acoustical Society of America
American Psychological Association

Service:
Program Committee of the Linguistic Society of America, 1974-1976.
Technical Committee on Speech Communication, Acoustical Society of America, 1965-1972.
Language editorial review committee, Linguistic Society of America,1978-1981.
Consultant and site visitor for National Science Foundation (NSF), National Institutes of Health (NIH), and New Zealand Research Council. Dutch NSF equivalent, Canada Council, National Transportation Safety Board, New Zealand NSF, Netherlands Science Foundation, Belgium, UK, Israel Science Foundation and others
American Psychological Association Planning Committee for Cognitive Psychology. 1986.
Study group for mission of the NIH Institute on deafness and other communication disorders, January 1989.
Editorial Boards: Human Evolution, Linguistic Research, Mother Tongue

1995 to present - Board of Directors, Association for the Study of Language in Prehistory.

1997- to present - La Jolla Group for explaining the origin of humans (LOH)

Reviewer: Science, Nature, The Journal of the Acoustical Society of America, American Journal of Physical Anthropology, General Psychology Review J. Nervous Mental Disease, Brain and Language, Neuropsychologia, Massachusetts Institute of Technology (MIT) Press, Cambridge University Press, Harvard University Press, LEA, and other publishers and journals.

Community:
Consultant on voice analysis and voice analyses for various law enforcement agencies, defendants in criminal trials, National Transportation Safety Board, Federal Bureau of Investigation, the U.S. Army and other federal entities.

I attempt to impart the principles and procedures that Charles Darwin introduced to evolutionary biology as well as current techniques and concepts. The particular focus is on the role of speech in human language and the anatomy and neural structures that make this possible. It is apparent that as Dobzhansky pointed out, "Nothing in biology makes sense except in the light of evolution." That insight applies to the fields of cognitive science and linguistics. My courses and projects with students attempt to integrate their acquiring the techniques for computer-implemented acoustic speech analysis and knowledge concerning cortical-striatal-sortical neural circuits. Specific courses are:
CG0032 The Bioloogy and Evolution of Language
CG0124 Speech Physiology, Perception and Acoustic Phonetics
CG0150 Subcortical Brain Bases of Language and Thought