M. Akay, Hypoxia silences the neural activities in the early phase of the phrenic neurogram of eupnea in the piglet, J. Neuroeng. Rehabil, vol.30, pp.32-41, 2005.

W. W. Burggren and M. Doyle, Ontogeny of regulation of gill and lung ventilation in the bullfrog, Rana catesbeiana, Respiration Physiology, vol.66, issue.3, pp.279-291, 1986.
DOI : 10.1016/0034-5687(86)90080-0

A. K. Chen and M. S. Hedrick, Role of glutamate and substance P in the amphibian respiratory network during development, Respiratory Physiology & Neurobiology, vol.162, issue.1, pp.24-31, 2008.
DOI : 10.1016/j.resp.2008.03.010

C. N. Christakos, M. I. Cohen, R. Barnhardt, and C. F. Shaw, Fast rhythms in phrenic motoneuron and nerve discharges, J Neurophysiol, vol.66, pp.674-87, 1991.

C. N. Christakos, M. I. Cohen, W. R. See, and R. Barnhardt, Fast rhythms in the discharges of medullary inspiratory neurons, Brain Research, vol.463, issue.2, pp.362-367, 1988.
DOI : 10.1016/0006-8993(88)90411-8

M. I. Cohen, W. R. See, C. N. Christakos, and A. L. Sica, High-frequency and medium-frequency components of different inspiratory nerve discharges and their modification by various inputs, Brain Research, vol.417, issue.1, pp.148-152, 1987.
DOI : 10.1016/0006-8993(87)90190-9

S. Fournier and R. Kinkead, Noradrenergic modulation of respiratory motor output during tadpole development: role of ??-adrenoceptors, Journal of Experimental Biology, vol.209, issue.18, pp.3685-3694, 2008.
DOI : 10.1242/jeb.02418

G. E. Foxon, Physiology of the Amphibia Blood and respiration, pp.151-209, 1964.

G. D. Funk and M. A. Parkis, High frequency oscillations in respiratory networks: functionally significant or phenomenological?, Respiratory Physiology & Neurobiology, vol.131, issue.1-2, pp.101-121, 2002.
DOI : 10.1016/S1569-9048(02)00041-1

R. J. Galante, L. Kubin, A. P. Fishman, and A. I. Pack, Role of chloride-mediated inhibition in respiratory rhythmogenesis in an in vitro brainstem of tadpole, Rana catesbeiana., The Journal of Physiology, vol.492, issue.2, pp.545-558, 1996.
DOI : 10.1113/jphysiol.1996.sp021328

C. Gans, H. J. De-jongh, and J. Farber, Bullfrog (Rana catesbeiana) Ventilation: How Does the Frog Breathe?, Science, vol.163, issue.3872, pp.1223-1225, 1969.
DOI : 10.1126/science.163.3872.1223

M. J. Gdovin, C. S. Torgerson, and J. E. Remmers, Neurorespiratory pattern of gill and lung ventilation in the decerebrate spontaneously breathing tadpole, Respiration Physiology, vol.113, issue.2, pp.135-146, 1998.
DOI : 10.1016/S0034-5687(98)00061-9

M. J. Gdovin, C. S. Torgerson, and J. E. Remmers, The fictively breathing tadpole brainstem preparation as a model for the development of respiratory pattern generation and central chemoreception, Comparative Biochemistry and Physiology Part A: Molecular & Integrative Physiology, vol.124, issue.3, pp.275-286, 1999.
DOI : 10.1016/S1095-6433(99)00116-6

F. Gustafsson, Determining the initial states in forward-backward filtering, IEEE Transactions on Signal Processing, vol.44, issue.4, pp.988-99, 1996.
DOI : 10.1109/78.492552

R. M. Harris-warrick, General Principles of Rhythmogenesis in Central Pattern Generator Networks, Prog Brain Res, vol.187, pp.213-222, 2010.
DOI : 10.1016/B978-0-444-53613-6.00014-9

M. S. Hedrick, A. K. Chen, and K. L. Jessop, Nitric oxide changes its role as a modulator of respiratory motor activity during development in the bullfrog (Rana catesbeiana) Comparative Biochemistry and Physiology Part A: Molecular & Integrative Physiology, pp.231-240, 2005.

E. Henneman, G. Somjen, and D. O. Carpenter, Functional significance of cell size in spinal motoneurons, J. Neurophysiol, vol.28, pp.560-580, 1965.

G. Horcholle-bossavit and B. Quenet, Neural model of frog ventilatory rhythmogenesis, Biosystems, vol.97, issue.1, pp.35-43, 2009.
DOI : 10.1016/j.biosystems.2009.04.002

C. B. Jorgensen, Amphibian respiration and olfaction and their relationships: from Robert Townson (1794) to the present, Biological Reviews, vol.41, issue.159, pp.297-345, 2000.
DOI : 10.1111/j.1469-185X.2000.tb00047.x

F. Kato, M. P. Morin-surun, and M. Denavit-saubie, Coherent inspiratory oscillation of cranial nerve discharges in perfused neonatal cat brainstem in vitro., The Journal of Physiology, vol.497, issue.2, pp.539-549, 1996.
DOI : 10.1113/jphysiol.1996.sp021787

R. Kinkead and W. K. Milsom, Chemoreceptors and control of episodic breathing in the bullfrog (Rana catesbeiana), Respiration Physiology, vol.95, issue.1, pp.81-98, 1994.
DOI : 10.1016/0034-5687(94)90049-3

B. Kocsis, K. Gyimesi-pelczer, and R. P. Vertes, Medium-frequency oscillations dominate the inspiratory nerve discharge of anesthetized newborn rats, Brain Research, vol.818, issue.1, pp.180-183, 1999.
DOI : 10.1016/S0006-8993(98)01302-X

N. Kogo, S. F. Perry, and J. E. Remmers, Neural organization of the ventilatory activity in the frog,Rana catesbeiana. I, Journal of Neurobiology, vol.53, issue.9, pp.1067-1079, 1994.
DOI : 10.1002/neu.480250904

N. Kogo and J. E. Remmers, Neural organization of the ventilatory activity in the frog,Rana catesbeiana. II, Journal of Neurobiology, vol.64, issue.9, pp.1080-1094, 1994.
DOI : 10.1002/neu.480250905

Y. Lefler, B. Torben-nielsen, and Y. Yarom, Oscillatory activity, phase differences, and phase resetting in the inferior olivary nucleus, Frontiers in Systems Neuroscience, vol.7, p.22, 2013.
DOI : 10.3389/fnsys.2013.00022

S. Mallat, Une exploration des signaux en ondelettes. Edition de l'Ecole Polytechnique, 2000.

V. Marchenko and R. F. Rogers, Selective loss of high-frequency oscillations in phrenic and hypoglossal activity in the decerebrate rat during gasping, AJP: Regulatory, Integrative and Comparative Physiology, vol.291, issue.5, pp.1414-1429, 2006.
DOI : 10.1152/ajpregu.00217.2006

V. Marchenko and R. F. Rogers, Temperature and state dependence of dynamic phrenic oscillations in the decerebrate juvenile rat, AJP: Regulatory, Integrative and Comparative Physiology, vol.293, issue.6, pp.2323-2358, 2007.
DOI : 10.1152/ajpregu.00472.2007

Y. Mor and A. Lev-tov, Analysis of Rhythmic Patterns Produced by Spinal Neural Networks, Journal of Neurophysiology, vol.98, issue.5, pp.2807-2817, 2007.
DOI : 10.1152/jn.00740.2007

O. Neal, I. M. Spiegel, E. T. Chon, K. H. Solomon, and I. C. , Time-Frequency Representation of Inspiratory Motor Output in Anesthetized C57BL/6 Mice In Vivo, Journal of Neurophysiology, vol.93, issue.3, pp.1762-1775, 2005.
DOI : 10.1152/jn.00646.2004

C. A. Richardson and R. A. Mitchell, Power spectral analysis of inspiratory nerve activity in the decerebrate cat, Brain Research, vol.233, issue.2, pp.317-336, 1982.
DOI : 10.1016/0006-8993(82)91205-7

R. N. Romcy-pereira, D. B. De-araujo, J. P. Leite, and N. A. Garcia-cairasco, A semi-automated algorithm for studying neuronal oscillatory patterns: A wavelet-based time frequency and coherence analysis, Journal of Neuroscience Methods, vol.167, issue.2, pp.384-392, 2008.
DOI : 10.1016/j.jneumeth.2007.08.027

G. J. Rose and E. S. Fortune, Mechanisms for generating temporal filters in the electrosensory system, J Exp Biol, vol.202, pp.1281-1290, 1999.

Y. Sakakibara, The pattern of respiratory nerve activity in the bullfrog., The Japanese Journal of Physiology, vol.34, issue.2, pp.269-282, 1984.
DOI : 10.2170/jjphysiol.34.269

Y. Sakakibara, Trigeminal nerve activity and buccal pressure as an index of total inspiratory activity in the bullfrog., The Japanese Journal of Physiology, vol.34, issue.5, pp.827-838, 1984.
DOI : 10.2170/jjphysiol.34.827

C. Straus, Z. Samara, M. N. Fiamma, N. Bautin, A. Ranohavimparany et al., Effects of maturation and acidosis on the chaos-like complexity of the neural respiratory output in the isolated brainstem of the tadpole, Rana esculenta, AJP: Regulatory, Integrative and Comparative Physiology, vol.300, issue.5, pp.1163-1174, 2011.
DOI : 10.1152/ajpregu.00710.2009

C. Straus, R. J. Wilson, and J. E. Remmers, Developmental disinhibition: Turning off inhibition turns on breathing in vertebrates, Journal of Neurobiology, vol.87, issue.2, pp.75-83, 2000.
DOI : 10.1002/1097-4695(20001105)45:2<75::AID-NEU2>3.0.CO;2-5

A. C. Taylor and J. Köllros, Stages in the normal development of Rana pipiens larvae, The Anatomical Record, vol.59, issue.1, pp.7-24, 1946.
DOI : 10.1002/ar.1090940103

B. E. Taylor, M. B. Harris, E. L. Coates, M. J. Gdovin, and J. C. Leiter, chemoreception in developing bullfrogs: anomalous response to acetazolamide, Journal of Applied Physiology, vol.94, issue.3, pp.1204-1212, 2003.
DOI : 10.1152/japplphysiol.00558.2002

B. E. Taylor, M. B. Harris, J. C. Leiter, and M. J. Gdovin, chemoreception: chemosensitivity in the ventral medulla of developing bullfrogs, American Journal of Physiology - Regulatory, Integrative and Comparative Physiology, vol.285, issue.6, pp.1461-1472, 2003.
DOI : 10.1152/ajpregu.00256.2003

C. S. Torgerson, M. J. Gdovin, and J. E. Remmers, Sites of respiratory rhythmogenesis during development in the tadpole, Am. J. Physiol. Regul. Integr. Comp. Physiol, vol.280, pp.913-920, 2001.

C. S. Torgerson, M. J. Gdovin, R. Brandt, and J. E. Remmers, Location of central respiratory chemoreceptors in the developing tadpole, Am. J. Physiol. Regul. Integr. Comp. Physiol, vol.280, pp.921-928, 2001.

C. S. Torgerson, M. J. Gdovin, and J. E. Remmers, The ontogeny of central chemoreception during fictive gill and lung ventilation of an in vitro brainstem preparation of Rana catesbeiana, J. Exp. Biol, vol.299, pp.2063-2072, 1997.

C. S. Torgerson, M. J. Gdovin, and J. E. Remmers, Fictive gill and lung ventilation in the pre-and postmetamorphic tadpole brain stem, J Neurophysiol, vol.80, issue.4, pp.2015-2037, 1998.

F. B. Vialatte, C. Martin, R. Dubois, B. Quenet, R. Gervais et al., A machine learning approach to the analysis of time???frequency maps, and its application to neural dynamics, Neural Networks, vol.20, issue.2, pp.194-209, 2007.
DOI : 10.1016/j.neunet.2006.09.013

T. Z. Vitalis and G. Shelton, Breathing in Rana pipiens: the mechanism of ventilation, J. Exp. Biol, vol.154, pp.537-556, 1990.

R. J. Wilson, K. Vasilakos, M. B. Harris, C. Straus, and J. E. Remmers, Evidence that ventilatory rhythmogenesis in the frog involves two distinct neuronal oscillators, The Journal of Physiology, vol.272, issue.2, pp.557-570, 2002.
DOI : 10.1113/jphysiol.2001.013512