Peripheral mechanisms for vocal production in birds - differences and similarities to human speech and singing

Brain and Language

Volumn 115, Issue 1, 2010, Pages 69-80

  Riede, Tobias ^a   Goller, Franz ^a  

^a UNIVERSITY OF UTAH   (United States)

Author keywords

Bioacoustics; Biomechanics; Larynx; Respiration; Songbird; Sound production; Syrinx; Vocal tract modification

Indexed keywords

AIRFLOW; ARTICLE; BIOMECHANICS; BREATHING; FLOW RATE; HUMAN; LARYNX; LEARNING; LUNG PRESSURE; MORPHOLOGY; MOTOR CONTROL; MOTOR SYSTEM; NONHUMAN; PHONATION; RESPIRATORY SYSTEM; SONGBIRD; SOUND TRANSMISSION; SPEECH; VOCALIZATION;

ANIMALS; HUMANS; LARYNX; RESPIRATION; SONGBIRDS; SPEECH; VOCALIZATION, ANIMAL;

EID: 77957903957     PISSN: 0093934X     EISSN: 10902155     Source Type: Journal    
DOI: 10.1016/j.bandl.2009.11.003     Document Type: Article

References (146)

1. Alipour F., Titze I.R., Hunter R., Tayama N. Active and passive properties of canine abduction/adduction laryngeal muscles. Journal of Voice 2005, 19:350-359.
2. Allan S.E., Suthers R.A. Lateralization and motor stereotypy of song production in the brown-headed cowbird. Journal of Neurobiology 1994, 25:1154-1166.
3. Amador A., Mindlin G.B. Beyond harmonic sounds in a simple model for birdsong production. Chaos 2008, 18:043123.
4. Ames P.L. The morphology of the syrinx in passerine birds 1971, Bulletin 37. Peabody Museum of Natural History, Yale University.
5. Atal B., Chang J., Mathews M., Tukey J. Inversion of articulatory-to-acoustic transformation in the vocal tract by a computer sorting technique. Journal of the Acoustical Society of America 1978, 63:1535-1556.
6. Atkinson J.E. Correlation analysis of physiological factors controlling fundamental voice frequency. Journal of the Acoustical Society of America 1978, 63:211-222.
7. Baker K.K., Ramig L.O., Sapir S., Luschei E.S., Smith M.E. Control of vocal loudness in young and old adults. Journal of Speech, Language, and Hearing Research 2001, 44:297-305.
8. Bartlett D., Remmers J.E., Gautier H. Laryngeal regulation of respiratory airflow. Respiration Physiology 1973, 18:194-204.
9. Beckers G.J.L., Suthers R.A., ten Cate C. Pure-tone birdsong by resonance filtering of harmonic overtones. Proceedings of the National Academy of Sciences of the USA 2003, 100:7372-7376.
10. Blomgren M., Chen Y., Ng M.L., Gilbert H.R. Acoustic, aerodynamic, physiologic and perceptual properties of modal and vocal fry registers. Journal of the Acoustical Society of America 1998, 103:2649-2658.
11. Boë L.-J., Perrier P., Guérin B., Schwartz J.-L. Maximal vowel vpace. Eurospeech 1989, 89:281-284.
12. Boessenecker A., Berry D.A., Lohscheller J., Eysholdt U., Doellinger M. Mucosal wave properties of a human vocal fold. Acta Acustica 2007, 93:815-823.
13. Bonder L.J. Equivalency of lossless n-tubes. Acustica 1983, 53:193-200.
14. Bouhyus A., Mead J., Proctor D.F., Stevens K.N. Presssure-flow events during singing. Annals of the New York Academy of Sciences 1968, 155:165-176.
15. Brackenbury J.H. Functions of the syrinx and the control of sound production. Form and function in birds 1989, 193-220. Academic Press, London. A.S. King, J. McLelland (Eds.).
16. Chan R.W., Titze I.R. Dependence of phonation threshold pressure on vocal tract acoustics and vocal fold tissue mechanics. Journal of the Acoustical Society of America 2006, 119:2351-2362.
17. Chan R.W., Fu M., Young L., Tirunagari N. Relative contributions of collagen and elastin to elasticity of the vocal fold under tension. Annals of Biomedical Engineering 2007, 35:1471-1483.
18. Dang J., Honda K. Acoustic characteristics of the piriform fossa in models and humans. Journal of the Acoustical Society of America 1996, 100:3374-3383.
19. Doupe A., Kuhl P. Birdsong and human speech: common themes and mechanisms. Annual Review of Neuroscience 1999, 22:567-631.
20. Doupe A., Kuhl P. Birdsong and human speech: common themes and mechanisms. Neuroscience of birdsong 2008, 5-31. Cambridge University Press, Cambridge. H.P. Zeigler, P. Marler (Eds.).
21. Draper M.H., Ladefoged P., Whitteridge D. Respiratory muscles in speech. Journal of Speech and Hearing Research 1959, 2:16-27.
22. Elemans C.P.H., Mead A.F., Rome L.C., Goller F. Superfast vocal muscles control song production in songbirds. PLoS ONE 2008, 3:e2581.
23. Elemans C.P.H., Zaccarelli R., Herzel H. Biomechanics and control of vocalization in a non-songbird. Journal of Royal Society of Interface 2008, 5:691-703.
24. Fant G. Acoustic theory of speech production 1960, Mouton, The Hague.
25. Fedde M.R., Burger R.E., Kitchell R.L. Electromyographic studies of the effects of bodily position and anesthesia on the activity of the respiratory muscles of the domestic cock. Poultry Science 1964, 43:1119-1125.
26. Fedde M.R., Burger R.E., Kitchell R.L. Anatomic and electromyographic studies of the costopulmonary muscles in the cock. Poultry Science 1964, 43:1177-1184.
27. Fee M.S. Measurement of the linear and nonlinear mechanical properties of the oscine syrinx: implications for function. Journal of Comparative Physiology A 2002, 188:829-839.
28. Fee M.S., Shraiman B., Pesaran B., Mitra P.P. The role of nonlinear dynamics of the syrinx in the vocalizations of a songbird. Nature 1998, 395:67-71.
29. Finnegan E.M., Alipour F. Phonatory effects of supraglottic structures in excised canine larynges. Journal of Voice 2009, 23:51-61.
30. Finnegan E.M., Luschei E.S., Hoffman H.T. Modulations in respiratory and laryngeal activity associated with changes in vocal intensity during speech. Journal of Speech, Language, and Hearing Research 2000, 43:934-950.
31. Fletcher N.H., Tarnopolsky A. Acoustics of the avian vocal tract. Journal of the Acoustical Society of America 1999, 105:35-49.
32. Fletcher N.H., Riede T., Suthers R.A. Models for vocalization by a bird with distensible vocal cavity and open beak. Journal of the Acoustical Society of America 2006, 119:1005-1011.
33. Frank T., Walter I., Probst A., Koenig H.E. Histological aspects of the syrinx of the mallard (Anas platyrhynchos). Anatomia Histologia and Embryologia 2006, 35:396-401.
34. Franz M., Goller F. Respiratory patterns and oxygen consumption in singing zebra finches. Journal of Experimental Biology 2003, 206:967-978.
35. Gaunt A.S. An hypothesis concerning the relationship of syringeal structure to vocal abilities. Auk 1983, 100:853-862.
36. Gaunt A.S. Phonation. Bird respiration 1987, 71-94. CRC Press, Boca Raton. T.J. Seller (Ed.).
37. Gaunt A.S., Gaunt S.L.L., Casey R.M. Syringeal mechanics reassessed: evidence from Streptopelia. Auk 1982, 99:474-494.
38. Gay T., Strome M., Hirose H., Sawashima M. Electromyography of intrinsic laryngeal muscles during phonation. Annals of Otology, Rhinology and Laryngology 1972, 81:401-410.
39. George J.C., Berger A.J. Avian myology 1966, Academic, New York.
40. Goldstein M.H., King A.P., West M. Social interaction shapes babbling: Testing parallels between birdsong and speech. Proceedings of the National Academy of Sciences of the USA 2003, 100:8030-8035.
41. Goller F., Cooper B.G. Peripheral motor dynamics of song production in the zebra finch. Annals of the New York Academy of Sciences 2004, 1016:130-152.
42. Goller F., Cooper B.G. Peripheral mechanisms of sensorimotor integration during singing. Neuroscience of birdsong 2008, 99-114. Cambridge University Press, Cambridge. H.P. Zeigler, P. Marler (Eds.).
43. Goller F., Daley M.A. Novel motor gestures for phonation during inspiration enhance the acoustic complexity of birdsong. Proceedings of the Royal Society of London Series B 2001, 268:2301-2305.
44. Goller F., Larsen O.N. A new mechanism of sound generation in songbirds. Proceedings of the National Academy of Sciences of the USA 1997, 94:14787-14791.
45. Goller F., Larsen O.N. New perspectives on mechanisms of sound generation in songbirds. Journal of Comparative Physiology A 2002, 188:841-850.
46. Goller F., Suthers R.A. Implications for lateralization of bird song from unilateral gating of bilateral motor patterns. Nature 1995, 373:63-66.
47. Goller F., Suthers R.A. Role of syringeal muscles on gating airflow and sound production in singing brown thrashers. Journal of Neurophysiology 1996, 75:867-876.
48. Goller F., Suthers R.A. Role of syringeal muscles in controlling the phonology of bird song. Journal of Neurophysiology 1996, 76:287-300.
49. Goller F., Suthers R.A. Bilaterally symmetrical respiratory acitivity during lateralized birdsong. Journal of Neurobiology 1999, 41:513-523.
50. Gray S.D., Titze I.R., Chan R. Vocal fold proteoglycans and their influence on biomechanics. Laryngoscope 1999, 109:845-854.
51. Greenewalt C.H. Bird song: Acoustics and physiology 1968, Smithsonian Institution Press, Washington D.C.
52. Häcker V. Der Gesang der Vögel und seine anatomischen Grundlagen 1900, Gustav Fischer, Jena, Germany.
53. Hartley R.S. Expiratory muscle activity during song production in the canary. Respiratory Physiology 1990, 81:177-187.
54. Hartley R.S., Suthers R.A. Airflow and pressure during canary song: Direct evidence for mini-breaths. Journal of Comparative Physiology A 1989, 165:15-26.
55. Hast M.H. Mechanical properties of the cricothyroid muscle. Laryngoscope 1966, 76:537-548.
56. Hast M.H. Mechanical properties of the vocal fold muscle. Practica Oto-rhinolaryngologica 1967, 29:53-56.
57. Herzel H., Berry D., Titze I.R., Saleh S. Analysis of vocal disorders with methods from nonlinear dynamics. Journal of Speech and Hearing Research 1994, 37:1008-1019.
58. Hirano M. Morphological structure of the vocal cord as a vibrator and its variations. Folia Phoniatrica, Basel 1974, 26:89-94.
59. Hirano M., Ohala J., Vennard W. The function of the laryngeal muscles in regulating fundamental frequency and intensity of phonation. Journal of Speech and Hearing Research 1969, 12:616-628.
60. Hirano M., Kikita Y., Ohmaru K., Kurita S. Structure and mechanical properties of the vocal fold. Speech and Language 1982, 7:271-297.
61. Hoh J.F.Y. Layngeal muscle fiber types. Acta Physiologica Scandinavica 2005, 183:133-149.
62. Hoit J., Hixon J. Body type and speech breathing. Journal of Speech and Hearing Research 1986, 29:313-324.
63. Hoit J., Hixon J. Age and speech breathing. Journal of Speech and Hearing Research 1987, 30:351-366.
64. Hollien H., Moore G.P. Measurements of the vocal folds during changes in pitch. Journal of Speech and Hearing Research 1960, 3:157-165.
65. Hollien H., Damste H., Murry T. Vocal fold length during vocal fry phonation. Folia Phoniatrica 1969, 21:257-265.
66. Holmberg E.B., Hillman E.R., Perkell J.S. Glottal airflow and transglottal air pressure measurements for male and female speakers in soft, normal and loud voice. Journal of the Acoustical Society of America 1988, 84:511-529.
67. Homberger D.G. The lingual apparatus of the African grey parrot, Psittacus erithacus Linne (Aves: Psittacidae): Description and theoretical mechanical analysis 1986, The American Ornithologist's Union, Washington, D.C.
68. Homberger D.G., Meyers R.A. Morphology of the lingual apparatus of the domestic chicken, Gallus gallus, with special attention to the structure of the fasciae. American Journal of Anatomy 1989, 186:217-257.
69. Honda K. Variability analysis of laryngeal muscle activity. Vocal fold physiology: Biomechanics, acoustics, and phonatory control 1983, Denver Center for the Performing Arts, Denver. I.R. Titze, R. Scherer (Eds.).
70. Hoshiko M.S. Sequence of action of breathing muscles in speech. Journal of Speech and Hearing Research 1960, 3:291-297.
71. Hoshiko M.S., Berger K.W. Sequence of respiratory muscles activity during vocal attack. Speech Monographs 1965, 32:185-191.
72. Ishizaka K., Flanagan J.L. Synthesis of voiced sounds froma two-mass model of the vocal cords. Bell System Technical Journal 1972, 51:1233-1268.
73. Jensen K.K., Cooper B.G., Larsen O.N., Goller F. Songbirds use pulse tone register in two voices to generate low frequency sound. Proceedings of the Royal Society of London. Series B 2007, 274:2703-2710.
74. Jiang J.J., Zhang Y., Stern J. Modeling of chaotic vibrations in symmetric vocal folds. Journal of the Acoustical Society of America 2001, 110:2120-2128.
75. King A.S. Functional anatomy of the syrinx. Form and function in birds 1989, 105-192. Academic Press, London. A.S. King, J. McLelland (Eds.).
76. Klatt D.H., Klatt L.C. Analysis, synthesis and perception of voice quality variations among male and female talkers. Journal of the Acoustical Society of America 1990, 87:820-856.
77. Larsen O.N., Goller F. Direct observation of syringeal muscle function in songbirds and a parrot. Journal of Experimental Biology 2002, 295:25-35.
78. Liljencrants, J. (1991). A translating and rotating mass model of the vocal folds. Speech transmission laboratory quarterly progress and status report 1, Stockholm: Royal Institute of Technology, pp. 1-18.
79. Lucero J.C., Koenig L.L. On the relation between the phonation threshold lung pressure and the oscillation frequency of the vocal folds. Journal of the Acoustical Society of America 2007, 121:3280-3283.
80. Luschei E.S., Ramig L.O., Finnegan E.M., Baker K.K., Smith M.E. Patterns of laryngeal electromyography and the activity of the respiratory system during spontaneous laughter. Journal of Neurophsyiology 2006, 96:442-450.
81. McLelland J. Larynx and trachea. Form and function in birds 1989, 69-103. Academic Press, London. A.S. King, J. McLelland (Eds.).
82. McLelland J. Anatomy of the lungs and air sacs. Form and function in birds 1989, 221-279. Academic Press, London. A.S. King, J. McLelland (Eds.).
83. Mindlin G.B., Laje R. The physics of birdsong 2005, Springer Verlag, Berlin.
84. Mindlin B.G., Gardner T.J., Goller F., Suthers R.A. Experimental support for a model of birdsong production. Physical Review E 2003, 68:041908.
85. Miskimen M. Sound production in passerine birds. Auk 1951, 68:493-504.
86. Nelson B.S., Beckers G.J.L., Suthers R.A. Vocal tract filtering and sound radiation in a songbird. Journal of Experimental Biology 2005, 208:297-308.
87. Nishizawa N., Sawashima M., Yonemoto K. Vocal fold length in vocal pitch change. Vocal physiology: Voice production, mechanisms and functions 1988, 75-82. Raven Press, New York. O. Fujimura (Ed.).
88. Nottebohm F. Neural lateralisation of vocal control in a passerine bird. I SubSong and A Journal of Experimental Zoology 1971, 177:229-262.
89. Nottebohm F. Asymmetries in nerual control of vocalization in the canary. Lateralizaiton of the nervous system 1977, 23-44. Academic Press, New York. S. Harnard, R.W. Doty, L. Goldstein, J. Jaynes, G. Krauthummer (Eds.).
90. Nowicki S. Vocal tract resonances in oscine bird sound production: Evidence from birdsongs in a helium atmosphere. Nature 1987, 325:53-55.
91. Oberweger K., Goller F. The metabolic cost of birdsong production. Journal of Experimental Biology 2001, 203:3379-3388.
92. Owerkowicz T., Farmer C.G., Hicks J.W., Brainerd E.L. Contribution of gular pumping to lung ventilation in monitor lizards. Science 1999, 284:1661-1663.
93. Plant R.L., Freed G.L., Plant R.E. Direct measurement of onset and offset phonation threshold pressure in normal subjects. Journal of the Acoustical Society of America 2004, 116:3640-3646.
94. Podos J. Motor constraint on vocal development in a songbird. Animal Behaviour 1996, 51:1061-1070.
95. Podos J., Nowicki S. Performance limits on birdsong. Nature's music: The science of birdsong 2004, 318-342. Elsevier Academic Press, New York. P. Marler, H. Slabbekoorn (Eds.).
96. Pruthi T., Epsy-Wilson C.Y., Story B.H. Simulation and analysis of nasalized vowels based on magnetic resonance imaging data. Journal of the Acoustical Society of America 2007, 121:3858-3873.
97. Riede T., Arcadi A.C., Owren M.J. Nonlinear acoustics in pant hoots and screams of common chimpanzees (Pan troglodytes): Vocalizing at the edge. Journal of the Acoustical Society of America 2007, 121:1758-1767.
98. Riede T., Goller F. Functional morphology of the sound-generating labia in the syrinx of two songbird species. Journal of Anatomy 2010, 216:23-36.
99. Riede T., Wilden I., Tembrock G. Subharmonics, biphonations and frequency jumps, common components of mammalian vocalization or indicators for disorders. Zeitschrift Fur Saugetierkunde 1997, 62(Suppl 2):198-203.
100. Riede T., Suthers R.A., Fletcher N.H., Blevins W.E. Songbirds tune their vocal tract to the fundamental frequency of their song. Proceedings of the National Academy of Sciences of the United States of America 2006, 103:5543-5548.
101. Riede T., Suthers R.A. Vocal tract motor patterns and resonance during constant frequency song: the white-throated sparrow. Journal of Comparative Physiology A 2009, 195:183-192.
102. Roy N., Tanner K., Gray S.D. An evaluation of the effects of three laryngeal lubricants on phonation threshold pressure. Journal of Voice 2003, 17:331-342.
103. Rüppell V.W. Physiologie und Akustik der Vogelstimme. Journal of Ornithology 1933, 81:433-542.
104. Sanders I., Han Y.S., Wang J., Biller H. Muscle spindles are concentrated in the superior vocalis subcompartment of the human thyroarytenoid muscle. Journal of Voice 1998, 12:7-16.
105. Schwartz J.L., Boë L.J., Vallée N., Abry C. The dispersion-vocalization theory of vowel systems. Journal of Phonetics 1997, 25:255-286.
106. Sears T.A., Newsom Davis J. The control of respiratory muscles during voluntary breathing. Annals of the New York Academy of Sciences 1968, 155:183-190.
107. Setterwall, C. G. (1901). Studier öfver syrinx hos polymyoda passeres. PhD dissertation, Sweden: University of Lund (pp. 133).
108. Shipp T., McGlone R. Laryngeal dynamics associated with voice frequency change. Journal of Speech and Hearing Research 1971, 14:761-768.
109. Sitt J.D., Amador A., Goller F., Mindlin G.B. Dynamical origin of spectrally rich vocalizations in birdsong. Physical Review E 2008, 78:011905.
110. Solomon N.P., Ramanathan P., Makashay M.J. Phonation threshold pressure across the pitch range: Preliminary test of a model. Journal of Voice 2007, 21:541-550.
111. Steinecke I., Herzel H. Bifurcations in an asymmetric vocal fold model. Journal of the Acoustical Society of America 1995, 97:1874-1884.
112. Stevens K.N. The quantal nature of speech: Evidence from articulatory-acoustic data. Human communication: A unified view 1972, 51-66. Mc Graw Hill Book Co, New York. E.E. David, P.B. Denes (Eds.).
113. Story B., Titze I., Hoffman E. Vocal tract area functions from magnetic resonance imaging. Journal of the Acoustical Society of America 1996, 100:537-554.
114. Story B.H., Titze I.R., Hoffman E.A. The relationship of vocal tract shape to three voice qualities. Journal of the Acoustical Society of America 2001, 109:1651-1667.
115. Sundberg J. Articulatory interpretation of the singing formants. Journal of the Acoustical Society of America 1974, 55:838-844.
116. Suthers R.A. Contributions to birdsong from the left and right sides of the intact syrinx. Nature 1990, 347:473-477.
117. Suthers R.A. The motor basis of vocal performance in songbirds. The design of animal communication 1999, 37-62. MIT Press, Cambridge. M.D. Hauser, M. Konishi (Eds.).
118. Suthers R.A. How birds sing and why it matters. Nature's music: The science of birdsong 2004, 272-295. Elsevier Academic Press, New York. P. Marler, H. Slabbekoorn (Eds.).
119. Suthers R.A., Goller F. Motor correlates of vocal diversity in songbirds. Current ornithology 1997, 235-288. Plenum Press, New York. V. Nolan, E. Ketterson, C.F. Thompson (Eds.).
120. Suthers R.A., Zollinger S.A. From brain to song: the vocal organ and vocal tract. Neuroscience of birdsong 2008, 78-98. Cambridge University Press, Cambridge. H.P. Zeigler, P. Marler (Eds.).
121. Suthers R.A., Goller F., Hartley R.S. Motor dynamics of song production by mimic thrushes. Journal of Neurobiology 1994, 25:917-936.
122. Suthers R.A., Goller F., Pytte C. The neuromuscular control of birdsong. Philosophical Transactions of the Royal Society of London B 1999, 354:927-939.
123. Suthers R.A., Vallet E.M., Tanvez A., Kreutzer M. Bilateral song production in domestic canaries. Journal of Neurobiology 2004, 60:381-393.
124. Titze I.R. The physics of small-amplitude oscillation of the vocal folds. Journal of the Acoustical Society of America 1988, 83:1536-1552.
125. Titze I.R. Phonation threshold pressure, a missing link in glottal aerodynamics. Journal of the Acoustical Society of America 1992, 91:2926-2935.
126. Titze I.R. Acoustic interpretation of the voice range profile (phonetogram). Journal of Speech Hearing Research 1992, 35:21-34.
127. Titze, I.R. (2000). Principles of Voice Production. Published by the National Center for Voice and Speech, Denver, CO, USA.
128. Titze I.R. The myoelastic aerodynamic theory of phonation 2006, The National Center for Voice and Speech, Denver.
129. Titze I.R. Nonlinear source-filter coupling in phonation: Theory. Journal of the Acoustical Society of America 2008, 123:2733-2749.
130. Titze I.R., Story B.H. Acoustic interactions of the voice source with the lower vocal tract. Journal of the Acoustical Society of America 1997, 101:2234-2243.
131. Titze I.R., Riede T., Popollo P. Vocal exercises to determine nonlinear source-filter interaction. Journal of the Acoustical Society of America 2008, 123:1902-1915.
132. Tokuda I.T., Riede T., Neubauer J., Owren M.J., Herzel H. Nonlinear analysis of irregular animal vocalizations. Journal of the Acoustical Society of America 2002, 111:2908Ù2919.
133. Tokuda I.T., Horacek J., Svec J.G., Herzel H. Comparison of biomechanical modeling of register transitions and voice instabilities with excised larynx experiments. Journal of the Acoustical Society of America 2007, 122:519-531.
134. Uchida A.M., Green J., Ahmad S., Goller F., Meyers R.A. Sexual dimorphism of syringeal muscles in songbirds. Integrative and Comparative Biology 2009, 49:e318.
135. Van den Berg J. Myoelastic-aerodynamic theory of voice production. Journal of Speech and Hearing Research 1958, 1:227-243.
136. Vicario D.S. Contributions of syringeal muscles to respiration and vocalization in the zebra finch. Journal of Neurobiology 1991, 22:63-73.
137. Verdolini K., Titze I.R., Fennell A. Dependence of phonatory effort on hydration level. Journal of Speech Hearing Research 1994, 37:1001-1007.
138. Vorperian H.K., Wang S., Chung M.K., Schimek E.M., Durtschi R.B., Kent R.D., et al. Anatomic development of the oral and pharyngeal portions of the vocal tract: An imaging study. Journal of the Acoustical Society of America 2009, 125:1666-1678.
139. Watson P.J., Hoit J.D., Lansing R.W., Hixon T.J. Abdominal muscle activity during classical singing. Journal of Voice 1989, 3:24-31.
140. Whalen D.H., Gick B., Kumada M., Honda K. Cricothyroid activity in high and low vowels: exploring the automaticity of intrinsic F0. Journal of Phonetics 1999, 27:125-142.
141. Whitehead R.L., Metz D.E., Whitehead B.H. Vibratory patterns of the vocal folds during pulse register phonation. Journal of the Acoustical Society of America 1984, 75:1293-1297.
142. Wild J.M. Birdsong: anatomical foundations and central mechanisms of sensorimotor integration. Neuroscience of birdsong 2008, 136-151. Cambridge University Press, Cambridge. H.P. Zeigler, P. Marler (Eds.).
143. Wild J.M., Goller F., Suthers R.A. Inspiratory muscle activity during bird song. Journal of Neurobiology 1998, 36:441-453.
144. Zeigler H.P., Marler P. Neuroscience of birdsong 2008, Cambridge University Press, Cambridge.
145. Zollinger S.A., Riede T., Suthers R.A. Two-voice complexity from a single side of the syrinx in northern mockingbird mimus polyglottos vocalizations. Journal of Experimental Biology 2008, 211:1978-1991.
146. Zweers G.A. Structure, movement and myography of the feeding apparatus of the mallard (Anas platyrhynchos L.): A study in functional anatomy. Netherlands Journal of Zoology 1974, 24:323-467.