JOURNALS

2016

  • Ikkatai, Y., Okanoya, K., & Seki, Y. (2016). Observing real-time social interaction via telecommunication methods in budgerigars (Melopsittacus undulatus).Behavioral Processes, 128, 29-36. doi:10.1016/j.beproc.2016.03.020
  • Matsumoto, Y. K., & Okanoya, K. (2016). Phase-specific vocalizations of male mice at the initial encounter during the courtship sequence. PLoS One, 11(2), e0147102. doi:10.1371/journal.pone.0147102
  • Miyawaki, S., Kawamura, Y., Oiwa, Y., Shimizu, A., Hachiya, T., Bono, H., Koya, I., Okada, Y., Kimura, T., Tsuchiya, Y., Suzuki, S., Onishi, N., Kuzumaki, N., Matsuzaki, Y., Narita, M., Ikeda, E., Okanoya, K., Seino, K., Saya, H., Okano, H., & Miura, K. (2016). Tumour resistance in induced pluripotent stem cells derived from naked mole-rats. Nature Communications, 7, 11471. doi:10.1038/ncomms11471
  • Ono, S., Okanoya, K., & Seki, Y. (2016). Hierarchical emergence of sequence sensitivity in the songbird auditory forebrain. Journal of Comparative Physiology A, 202(3), 163-183. doi:10.1007/s00359-016-1070-7

2015

  • Arimoto, Y., & Okanoya, K. (2015). Multimodal features for automatic emotion estimation during face-to-face conversation. Journal of the Phonetic Society of Japan, 19(1), 53-65.
  • Arimoto, Y., & Okanoya, K. (2015). Mutual emotional understanding in a face-to-face communication environment: How speakers understand and react to listeners’ emotion in a game task dialog. Acoustical Science and Technology, 36(4), 370-373.
  • Katahira, K., Matsuda, Y., Fujimura, T., Ueno, K., Asamizuya, T., Suzuki, C., Cheng, K., Okanoya, K., & Okada, M. (2015). Neural basis of decision making guided by emotional outcomes. Journal of Neurophysiology, 113, 3056-3068. doi: 10.1152/jn.00564.2014.
  • Maeshima, H., Yamashita, Y., Fujimura, T., Okada, M., & Okanoya, K. (2015). Modulation of emotional category induced by temporal factors in emotion recognition.PLoS One, 10(7), e0131636. doi: 10.1371/journal.pone.0131636.
  • Mizugaki, S., Maehara, Y., Okanoya, K., & Myowa-Yamakoshi, M. (2015). The power of an infant’s smile: maternal physiological responses to infant emotional expressions. PLoS One, 10(6), e0129672. doi: 10.1371/journal.pone.0129672.
  • Okanoya, K. (2015). Evolution of song complexity in Bengalese finches could mirror the emergence of human language. Journal of Ornithology. doi:10.1007/s10336-015-1283-5.
  • Ono, S., Kagawa, H., Takahasi, M., Seki, Y., & Okanoya, K. (2015). Limitations of a habituation task to demonstrate discrimination of natural signals in songbirds. Behavioral Processes, 115, 100-108. doi: 10.1016/j.beproc.2015.03.004.
  • Sasahara, K., Tchernichovski, O., Takahasi, M., Suzuki, K., & Okanoya, K. (2015). A rhythm landscape approach to the developmental dynamics of birdsong. Journal of The Royal Society Interface, 12(112), 20150802. doi: 10.1098/rsif.2015.0802.
  • Tachibana, R., Koumura, T., & Okanoya, K. (2015). Variability in the temporal parameters in the song of the Bengalese finch (Lonchura striata var. domestica).Journal of Comparative Physiology A, 201(12), 1157-1168. doi: 10.1007/s00359-015-1046-z.

2014

  • Hoshi-Shiba, R., Furukawa, K., & Okanoya, K. (2014).
    Neural correlates of expectation of musical termination structure or cadence.
    Neuroreport, 25, 743-748.
  • Kagawa, H., Suzuki, K., Takahasi, M., Okanoya, K. (2014)
    Domestication changes innate constraints for birdsong learning.
    Behavioural Processes, 106, 91-97.
  • Kamiyama, K., & Okanoya, K. (2014).
    Synchronized tapping facilitates learning sound sequences as indexed by the P300.
    Frontiers in Human Neuroscience, 8, e826. doi: 10.3389/fnhum.2014.00826.
  • Katahira, K., Fujimura, T., Matsuda, Y., Okanoya, K., & Okada, M. (2014).
    Individual differences in heart rate variability are associated with the avoidance of negative emotional events.
    Biological psychology, 103, 322-331. doi: 10.1016/j.biopsycho.2014.10.007.
  • Kato, M., Okanoya, K., Koike, T., Sasaki, E., Okano, H., Watanabe, S., & Iriki, A. (2014).
    Human speech- and reading-related genes display partially overlapping expression patterns in the marmoset brain.
    Brain and Language, 133, 26-38. doi: 10.1016/j.bandl.2014.03.007
  • Kawakami, A., Furukawa, K., & Okanoya, K. (2014).
    Music evokes vicarious emotions in listeners.
    Frontiers in Psychology, 30(5), e431. doi: 10.3389/fpsyg.2014.00431.
  • Koumura, T., Seki, Y., & Okanoya, K. (2014).
    Local structure sensitivity in auditory information processing in avian song nuclei.
    Neuroreport, 25(8), 562-568. doi: 10.1097/WNR.0000000000000136.
  • Matsuda, Y., Ueno, K., Cheng, K., Konishi, Y., Mazuka, R., & Okanoya, K. (2014).
    Auditory observation of infant-directed speech by mothers: experience-dependent interaction between language and emotion in the basal ganglia.
    Frontiers in Human Neuroscience, 8, e907. doi: 10.3389/fnhum.2014.00907.
  • Matsunaga, E., & Okanoya, K. (2014).
    Cadherins: potential regulators in the faculty of language.
    Current Opinion in Neurobiology, 28, 28-33. doi: 10.1016/j.conb.2014.06.001.
  • Miyagawa, S., Ojima, S., Berwick, R. C., & Okanoya, K. (2014).
    The integration hypothesis of human language evolution and the nature of contemporary languages.
    Frontiers in Psychology, 5, 564. doi: 10.3389/fpsyg.2014.00564
  • Ojima, S., & Okanoya, K. (2014).
    The non-hierarchical nature of the Chomsky hierarchy-driven artificial-grammar learning.
    Biolinguistics, 8, 163-180. http://www.biolinguistics.eu
  • Okanoya, K. (2014).
    Learning, epigenetics, and computation: An extension on Fitch’s proposal: Comment on “Toward a computational framework for cognitive biology: Unifying approaches from cognitive neuroscience and comparative cognition” by W. Tecumseh Fitch
    Physics of life reviews, 11(3), 389-390. doi: 10.1016/j.plrev.2014.07.004.
  • Saito, H., Katahira, K., Okanoya, K., & Okada, M. (2014).
    Bayesian deterministic decision making: a normative account of the operant matching law and heavy-tailed reward history dependency of choices.
    Frontiers in Computational Neuroscience, 8(18), doi: 10.3389/fncom.2014.00018.
  • Seki, Y., Hessler, NA., Xie, K., Okanoya, K. (2014)
    Food rewards modulate the activity of song neurons in Bengalese finches.
    European Journal of Neuroscience, 4, 1-9. doi: 10.1111/ejn.12457.
  • Suzuki, K., Ikebuchi, M., Bischof, H., & Okanoya, K. (2014).
    Behavioral and neural trade-offs between song complexity and stress reaction in a wild and a domesticated finch strain.
    Neurosci Biobehav Rev, 46, 547-556. doi: 10.1016/j.neubiorev.2014.07.011. [review]
  • Suzuki, K., Matsunaga, E., Yamada, H., Kobayashi, T., Okanoya, K. (2014)
    Complex song development and stress hormone levels in the Bengalese finch.
    Avian Biology Research, 7 (1), 10-17.
  • Tachibana, R., Oosugi, N., & Okanoya, K. (2014).
    Semi-automatic classification of birdsong elements using a linear support vector machine.
    PLoS One, 21(9), e92584. doi: 10.1371/journal.pone.0092584.
  • Tanaka, Y., Fukushima, H., Okanoya, K., & Myowa-Yamakoshi, M. (2014).
    Mothers’ multimodal information processing is modulated by multimodal interactions with their infants.
    Scientific Reports, 4, e6623. doi: 10.1038/srep06623.
  • Yuki, S., & Okanoya, K. (2014).
    Behavioral Correlates of 50-kHz Ultrasonic Vocalizations in Rats: Progressive Operant Discrimination Learning Reduces Frequency Modulation and Increases Overall Amplitude.
    Animal Behavior and Cognition, 1(4), 452-463.
  • Yuki, S., & Okanoya, K. (2014).
    Relatively high motivation for context-evoked reward produces the magnitude effect in rats.
    Behavioral Processes, 107, 22-28. doi: 10.1016/j.beproc.2014.07.007.

2013

  • Fuchino, Y., Naoi, N., Shibata, M., Niwa, F., Kawai, M., Konishi, Y., et al. (2013).
    Effects of preterm birth on intrinsic fluctuations in neonatal cerebral activity examined using optical imaging.
    PLoS One, 8(6), e67432.
  • Fujimura, T., Katahira, K., & Okanoya, K. (2013).
    Contextual modulation of physiological and psychological responses triggered by emotional stimuli.
    Frontiers in Psychology, 4, 212.
  • Fujimura, T., & Okanoya, K. (2013).
    Event-related potentials elicited by pre-attentive emotional changes in temporal context.
    PLoS One, 8(5), e63703.
  • Ikebuchi, M., Nanbu, S., Okanoya, K., Suzuki, R., & Bischof, H.J. (2013).
    Very early development of Nucleus Taeniae of the amygdala.
    Brain, Behavior and Evolution, 81(1), 12-26.
  • Inoue, Y., Sinun, W., Yosida, S., & Okanoya, K. (2013).
    Intergroup and intragroup antiphonal songs in wild male Mueller’s gibbons (Hylobates muelleri).
    Interaction Studies, 14(1), 24-43.
  • Kamiyama, K., Abla, D., Iwanaga, K., & Okanoya, K. (2013).
    Interaction between musical emotion and facial expression as measured by event-related potentials.
    Neuropsychologia, 51, 500-505.
  • Kashihara, K., Okanoya, K., & Kawai, N. (2013).
    Emotional attention modulates microsaccadic rate and direction.
    Psychological Research, 1-14.DOI 10.1007/s00426-013-0490-z.
  • Katahira, K., Suzuki, K., Kagawa, H., & Okanoya, K. (2013).
    A simple explanation for the evolution of complex song syntax in Bengalese finches.
    Biology Letters, 9(6), 20130842.
  • Kawai, N., Miyata, H., Nishimura, R., & Okanoya, K. (2013).
    Shadows alter facial expressions of Noh masks.
    PLoS One, 8(8), e71389.
  • Kawakami, A., Furukawa, K., Katahira, K., Kamiyama, K., & Okanoya, K. (2013).
    Relations between musical structures and perceived and felt emotions.
    Music Perception, 30(4), 407-417.
  • Kawakami, A., Furukawa, K., Katahira, K., & Okanoya, K. (2013).
    Sad music induces pleasant emotion.
    Frontiers in Psychology, 4, 311.
  • Lipkind, D., Marcus, G. F., Bemis, D. K., Sasahara, K., Jacoby, N., Takahasi, M., et al. (2013).
    Stepwise acquisition of vocal combinatorial capacity in songbirds and human infants. Nature, 498, 104-109.
  • Matsuda, Y.-T., Okanoya, K., & Myowa-Yamakoshi, M. (2013).
    Shyness in early infancy: approach-avoidance conflicts in temperament and hypersensitivity to eyes during Initial gazes to faces.
    PLoS One, 8(6), e65476.
  • Matsuda, Y., Fujimura, T., Katahira, K., Okada, M., Ueno, K., Cheng, K., et al. (2013).
    The implicit processing of categorical and dimensional strategies: an fMRI study of facial emotion perception.
    Frontiers in Human Neuroscience, 7, 551.
  • Matsunaga, E., Nambu, S., Oka, M., Okanoya, K., & Iriki, A. (2013).
    Comparative analysis of protocadherin-11 X-linked expression among postnatal rodents, non-human primates, and songbirds suggests its possible involvement in brain evolution.
    PLoS One, 8(3), e58840.
  • Miyagawa, S., Berwick, R. C., & Okanoya, K. (2013).
    The emergence of hierarchical structure in human language.
    Frontiers in Psychology, 4, 1-6.
  • Nakano, R., Nakagawa, R., Tokimoto, N., & Okanoya, K. (2013).
    Alarm call discrimination in a social rodent: adult but not juvenile degu calls induce high vigilance.
    Journal of Ethology, 31, 115-121.
  • Naoi, N., Fuchino, Y., Shibata, M., Niwa, F., Kawai, M., Konishi, Y., et al. (2013).
    Decreased right temporal activation and increased interhemispheric connectivity in response to speech in preterm infants at term-equivalent age.
    Frontiers in Psychology, 4, 94.
  • Nixima, K., Fujimori, M., & Okanoya, K. (2013).
    An ERP study of autistic traits and emotional recognition in non-clinical adolescence.
    Psychology, 4, 515-519.
  • Nixima, K., Okanoya, K., & Kurotani, T. (2013).
    Current source-density analysis of intracortical circuit in the granular retrosplenial cortex of rats: a possible role in stimulus time buffering.
    Neuroscience Research, 76, 52-57. doi:pii: S0168-0102(13)00075-8. 10.1016/j.neures.2013.02.008.
  • Seki, F., Hikishima, K., Nambu, S., Okanoya, K., Okano, H., Sasaki, E., et al. (2013).
    Multidimensional MRI-CT atlas of the naked mole-rat brain (Heterocephalus glaber).
    Frontiers in Neuroanatomy, 7, 45.
  • Seki, Y., Suzuki, K., Osawa, A. M., & Okanoya, K. (2013).
    Songbirds and humans apply different strategies in a sound sequence discrimination task.
    Frontiers in Psychology, 4, 447.
  • Shibata, M., Kawai, M., Matsukura, T., Heike, T., Okanoya, K., & Myowa-Yamakoshi, M. (2013).
    Salivary biomarkers are not suitable for pain assessment in newborns.
    Early Human Development, 89(7), 503-506.
  • Suzuki, K., Ikebuchi, M., & Okanoya, K. (2013).
    The impact of domestication on fearfulness: A comparison of tonicimmobility reactions in wild and domesticated finches.
    Behavioural Peocesses, 100, 58-63.
  • Takahasi, M., & Okanoya, K. (2013).
    An invisible sign stimulus: completion of occluded visual images in the Bengalese finch in an ecological context.
    Neuroreport, 24(7), 370-374.
  • Wada, K., Hayase, S., Imai, R., Mori, C., Kobayashi, M., Liu, W. C., et al. (2013).
    Differential androgen receptor expression and DNA methylation state in striatum song nucleus Area X between wild and domesticated songbird strains.
    European Journal of Neuroscience, 38, 2600-2610.
  • Yamashita, I., Katahira, K., Igarashi, Y., Okanoya, K., & Okada, M. (2013).
    Recurrent network for multisensory integration-identification of common sources of audiovisual stimuli.
    Frontiers in Computational Neuroscience, 7(101), doi: 10.3389/fncom.2013.00101.

2012

  • Fujimura T, Matsuda YT, Katahira K, Okada M, Okanoya K.(2012).
    Categorical and dimensional perceptions in decoding emotional facial expressions.
    Cognition & Emotion,26,587-601.
  • Fujimura T, & Okanoya K.(2012).
    Heart rate variability predicts emotional flexibility in response to positive stimuli.
    Psychology,3(8),578-582.
  • Fujimura, T., Sato, W., & Okanoya, K. (2012).
    Subcategories of positive emotion.
    Psychologia, 55, 1-8.
  • Hara, E., Rivas, MV., Ward, JM., Okanoya, K., & Jarvis, ED. (2012)
    Convergent differential regulation of parvalbumin in the brains of vocal learners.
    PLoS One, 7(1), e29457.
  • Kagawa, H., Takahashi, R., Ikebuchi, M., & Okanoya, K.(2012).
    Song Complexity and Auditory Feedback in Birds: a Comparison Between two Strains of Bengalese Finches with Different Degrees of Song Complexity.
    Zoological science, 29(10),645-651.
  • Kagawa, H., Yamada, H., Lin, R.-S., Mizuta, T., Hasegawa, T., & Okanoya, K.(2012).
    Ecological correlates of song complexity: a case study in white-rumped munias – the implication of relaxation of selection as a cause for signal variation in birdsong.
    Interaction Studies, 13(2), 263-284.
  • Katahira, K., Okanoya, K., & Okada, M. (2012).
    Statistical mechanics of reward-modulated learning in decision-making networks.
    Neural Computation, 24, 1230-1270.
  • Kato Y, Kato M, Okanoya K.(2012).
    Sequential information of self-produced song is represented in the auditory areas in male bengalese finches.
    Neuroreport, 23(8), 488-492.
  • Kubo, K., Okanoya, K., & Kawai, N. (2012).
    Apology isn’t good enough: an apology suppresses an approach motivation but not the physiological and psychological anger.
    PLoS One, 7(3), e33006.
  • Kutsukake, N., Teramoto, M., Homma, S., Mori, Y., Matsudaira, K., Kobayashi, H., Ishida, T., Okanoya, K & Hasegawa, T. (2012).
    Individual variation in behavioural reactions to unfamiliar conspecific vocalisation and hormonal underpinnings in male chimpanzees.
    Ethology, 118, 269-280.
  • Matsuda, YT., Okamoto, Y., Ida, M., Okanoya, K., & Myowa-Yamakoshi, M. (2012).
    Infants prefer the faces of strangers or mothers to morphed faces: an uncanny valley between social novelty and familiarity?
    Biology Letters, 8, 725-728.
  • Matsumoto, YK., Okanoya, K., & Seki, Y. (2012).
    Effects of amygdala lesions on male mouse ultrasonic vocalizations and copulatory behaviour.
    Neuroreport, 23(11), 676-680.
  • Miyata, H., Nishimura, R., Okanoya, K., & Kawai, N. (2012).
    The mysterious Noh Mask: contribution of multiple facial parts to the recognition of emotional expression.
    PLoS One, 7(11), e50280.
  • Nakagawa R, Matsunaga E, Okanoya K. (2012)
    Defects in ultrasonic vocalization of cadherin-6 knockout mice.
    PLoS One, ‘’7(11)”, e49233. doi: 10.1371/journal.pone.0049233.
  • Nakagawa, R., Matsunaga, E., Okanoya, K., & Matsushima, Y. (2012).
    Vocalizations in a Japanese wild-derived laboratory mouse KOR1: Development, behavioral contexts, and sound characteristics.
    Acoustical Science and Technlogy, 33(1), 52-55.
  • Okanoya, K. (2012).
    Behavioural factors governing song complexity in bengalese finches.
    International Journal of Comparative Psychology, 25, 44-59.
  • Secora, K. R., Peterson, J. R., Urbano, C. M., Chung, B., Okanoya, K., & Cooper, B. G. (2012).
    Syringeal specialization of frequency control during song production in the Bengalese Finch (Lonchura striata domestica).
    PLoS One, 7(3), e34135.
  • Shibata, M., Fuchino, Y., Naoi, N., Kohno, S., Kawai, M., Okanoya, K., et al. (2012).
    Broad cortical activation in response to tactile stimulation in newborns.
    Neuroreport, 23(6), 373-377.
  • Sun, F., Hoshi-Shiba, R., Abla, D., & Okanoya, K.(2012).
    Neural correlates of abstract rule learning: An event-related potential study.
    Neuropsychologia, 50, 2617-2624.
  • Suzuki, K., Yamada, H., Kobayashi, T., & Okanoya, K.(2012)
    Decreased fecal corticosterone levels due to domestication: a comparison between the white-backed munia (Lonchura striata) and its domesticated strain, the Bengalese finch (Lonchura striata var. domestica) with a suggestion for complex song evolution.
    Journal of Experimental Zoology Part A: Ecological Genetics and Physiology, 317 (9), 561-570.
  • ten Cate, C., & Okanoya, K.(2012).
    Revisiting the syntactic abilities of nonhuman animals: natural vocalizations and artificial grammar learning.
    Philosophical Transactions of the Royal Society B,367, 1984-1994.
  • Yamazaki, Y., Suzuki, K., Inada, M., Iriki, A., & Okanoya, K.(2012).
    Sequential learning and rule abstraction in Bengalese finches.
    Animal Cognition, 15(3), 369-377.
  • Yosida, S., & Okanoya, K. (2012).
    Bilateral lesions of the medial frontal cortex disrupt recognition of social hierarchy during antiphonal communication in naked mole-rats (Heterocephalus glaber).
    Journal of Comparative Physiology A, 198, 109-117.

2011

  • Aucouturier, J.-J., Nonaka, Y., Katahira, K., & Okanoya, K. (2011).
    Segmentation of expiratory and inspiratory sounds in baby cry audio recordings using Hidden Markov Models.
    Journal of the Acoustical Society of America,130(5),2969-2977.
  • Berwick, R. C., Okanoya, K., Beckers, G. J. L., & Bolhuis, J. J. (2011).
    Songs to syntax: the linguistics of birdsong.
    Trends in Cognitive Sciences, 15(3), 113-121.
  • Hara, K., Katahira, K., Okanoya, K., & Okada, M.(2011).
    Statistical mechanics of on-line node-perturbation learning.
    IPSJ Transactions on Mathematical Modeling and Its Applications, 4, 72-81.
  • Hasegawa, A., Okanoya, K., Hasegawa, T. & Seki, Y. (2011).
    Rhythmic synchronization tapping to an audio-visual metronome in budgerigars.
    Scientific Reports, 1, 120. DOI:10.1038/srep00120
  • Katahira, K., Fujimura, T., Okanoya, K., & Okada, M. (2011).
    Decision making based on emotional images.
    Frontiers in Emotion Science, 2, 311.
  • Katahira, K., Okanoya, K., & Okada, M. (2011).
    Effects of synaptic weight diffusion on learning in decision making netwroks.
    Advances in Neural Information Processing Systems, 23, 1081-1089.
  • Katahira, K., Suzuki, K., Okanoya, K., & Okada, M. (2011).
    Complex sequencing rules of birdsong can be explained by simple hidden markov processes.
    PLoS ONE, 6(9), e24516. doi:10.1371/journal.pone.0024516
  • Kudo, N., Nonaka, Y., Mizuno, N., Mizuno, K., & Okanoya, K.(2011).
    On-line statistical segmentation of a non-speech auditory stream in neonates as demonstrated by event-related brain potentials.
    Developmental Science, 14, 1100-1106.
  • Matsunaga, E., Kurotani, T., Suzuki, K., & Okanoya, K.(2011).
    Type-II cadherins modulate neural activity in cultured rat hippocampal neurons.
    Neuroreport, 22, 629-632.
  • Matsunaga, E., Nambu, S., Iriki, A., & Okanoya, K.(2011).
    Expression pattern of cadherins in Naked mole rat (Heterocephalus glaber) suggests innate cortical diversification of the cerebrum.
    Journal of Comparative Neurology, 519, 1736-1747.
  • Matsunaga, E., & Okanoya, K.(2011).
    Comparative gene expression analysis among vocal learners (bengalese finch and budgerigar) and non-learners (quail and ring dove) reveals variable cadherin expressions in the vocal system.
    Frontiers in neuroanatomy, 5, 28.
  • Matsunaga, E., Suzuki, K., Kobayashi, T., & Okanoya, K. (2011).
    Comparative analysis of mineralocorticoid receptor expression among vocal learners (Bengalese finch and budgerigar) and non-vocal learners (quail and ring dove) has implications for the evolution of avian vocal learning.
    Development, Growth & Differentiation, 53, 961-970.
  • Matsunaga, E., Suzuki, K., Kato, S, Kurotani, T., Kobayashi, K., & Okanoya, K. (2011).
    Dynamic expression of cadherins regulates vocal development in a songbird
    PLoS ONE,6(9), e25272.
  • Saito H., Katahira. K., OKanoya, K., & Okada, M.(2011).
    Statistical mechanics of structural and temporal credit assignment effects on learning in neural networks.
    Physical Review E, 83, 051125.
  • Suzuki K, Matsunaga E, Kobayashi T, Okanoya K.(2011).
    Expression patterns of mineralocorticoid and glucocorticoid receptors in Bengalese finch (Lonchura striata var. domestica) brain suggest a relationship between stress hormones and song-system development.
    Neuroscience,194, 72-83.
  • Tobari Y, Iijima N, Tsunekawa K, Osugi T, Haraguchi S, Ubuka T, Ukena K, Okanoya K, Tsutsui K, Ozawa H. (2011).
    Identification, localisation and functional implication of 26RFa orthologue peptide in the brain of Zebra Finch (Taeniopygia guttata).
    Journal of Neuroendocrinology, 23,791-803.
  • Tobari, Y., Okumura, T., Tani, J., & Okanoya, K. (2011).
    A direct neuronal connection between the telencephalic nucleus robustus arcopallialis and the nucleus nervi hypoglossi, pars tracheosyringealis in Bengalese finches (Lonchura striata var. domestica) .
    Neuroscience Research,71, 361-368.
  • Yamashita, Y., Okumura, T., Okanoya, K., & Tani, J. (2011).
    Cooperation of deterministic dynamics and random noise in production of complex syntactical avian song sequences: a neural network model.
    Frontiers in computational neuroscience, 5, 18.
  • Kikusui, T., Nakanishi, K., Nakagawa, R., Nagasawa, M., Mogi, K., & Okanoya, K.(2011).
    Cross fostering experiments suggest that mice songs are innate.
    PLoS ONE, 6(3), e17721.
  • Uekita, T., & Okanoya, K.(2011).
    Hippocampus lesions induced deficits in social and spatial recognition in Octodon degus.
    Behavioral Brain Research, 219, 302-309.

2010

  • Johan J. Bolhuis, Kazuo Okanoya, & Constance Scharff. (2010).
    Twitter evolution: converging mechanisms in birdsong and human speech.
    Nature Reviews Neuroscience, 11, 747-759.
  • Kamiyama, K., Katahira, K., Abla, D., Hori, K., & Okanoya, K. (2010).
    Music playing and memory trace: Evidence from event-related potentials.
    Neuroscience Research, 67, 334-340.
  • Katahira, K., Nishikawa, J., Okanoya, K., & Okada, M. (2010).
    Extracting state transition dynamics from multiple spike trains using Hidden Markov Models with correlated poisson distribution.
    Neural Computation, 22, 2369-2389.
  • Katahira, K., Cho, T., Okanoya, K., & Okada, M. (2010).
    Optimal node perturbation in linear perceptrons with uncertain eligibility trace.
    Neural Networks, 23, 219-225.
  • Kato, Y., Hasegawa, T., & Okanoya, K. (2010).
    Song preference of female Bengalese finches as measured by operant conditioning.
    Journal of Ethology, 28. 447-453.
  • Kato, Y., Kato, M., Hasegawa, T., & Okanoya, K. (2010).
    Song memory in female birds: neuronal activation suggests phonological cording.
    NeuroReport?, 21. 404-409.
  • Katsushima, K., Nishida, C., Yosida, S., Kato, M., Okanoya, K., & Matsuda, Y. (2010).
    A multiplex PCR assay for molecular sexing of the naked mole-rat (Heterocephalus glaber).
    Molecular Ecology Resources, 10, 222-224.
  • Kato, M & Okanoya, K. (2010).
    Molecular characterization of the song control nucleus HVC in Bengalese finch brain.
    Brain Research, 1360. 56-76.
  • Suge, R., & Okanoya, K. (2010).
    Perceptual chunking in the self-produced songs of Bengalese finches (Lonchura striata var. domestica).
    Animal Cognition, 13, 515-523.
  • Takahasi, M. & Okanoya, K. (2010).
    Song learning in wild and domesticated strains of White-rumped Munia, Lonchura striata, compared by cross-fostering procedures: domestication increases song variability by decreasing strain-specific bias.
    Ethology, 116, 396-405.
  • Takahasi, M., Yamada, H. & Okanoya, K. (2010).
    Statistical and prosodic cues for song segmentation learning by Bengalese Finches (Lonchura striata var. domestica).
    Ethology, 116, 481-489.
  • Tobari, Y., Iijima, N., Tsunekawa, K., Osugi, T., Okanoya, K., Tsutsui, K. & Ozawa, H. (2010).
    Identification of gonadotropin-inhibitory hormone in the zebra finch (Taeniopygia guttata): peptide isolation, cDNA cloning and brain distribution.
    Peptides, 31, 816-826.
  • Yamazaki, Y., Yokochi, H., Tanaka, M., Okanoya, K., & Iriki, A. (2010).
    Potential role of monkey inferior parietal neurons coding action semantic equivalences as precursors of parts of speech.
    Social Neuroscience, 5, 105-117.

2009

  • Abla, D., & Okanoya, K. (2009).
    Visual statistical learning of shape sequences: An ERP study.
    Neuroscience Research, 64, 185-190.
  • *Kakishita, Y., *Sasahara, K., Nishino, T,, Takahasi, M., & Okanoya, K. (2009).
    Ethological Data Mining: An Automata-based Approach to Extract Behavioral Units and Rules.
    Data Mining and Knowledge Discovery, 18, 446-471.(*equal contribution)
  • Matsunaga, E., & Okanoya, K. (2009).
    Vocal control area-related expression of neuropilin-1, plexin-A4, and the ligand semaphorin-3A has implications for the evolution of the avian vocal system.
    Development, Growth & Differentiation, 51, 45-54.
  • Matsunaga, E. & Okanoya, K. (2009)
    Evolution and diversity in avian vocal system; An Evo-Devo model from the morphological and behavioral perspectives.
    Development, Growth & Differentiation, 51, 355-367.
  • Morisaka, T., & Okanoya, K. (2009).
    Cognitive tactics of Bengalese finch (Lonchura striata var. domestica) for song discrimination in a go/no-go operant task.
    Journal of Ethology, 27, 11-18.
  • Seki, Y., & Okanoya, K. (2009).
    The effect of sound location in a song discrimination task in Bengalese finches (Lonchura striata var. domestica).
    Journal of Ethology, 27, 407-411.
  • Soma, M., Hiraiwa-Hasegawa, M., & Okanoya, K. (2009).
    Early ontogenetic effects on song quality in the Bengalese finch (Lonchura striata var. domestica): laying order, sibling competition and song syntax.
    Behavioral Ecology and Sociobiology, 63, 363-370.
  • Soma, M., Hiraiwa-Hasegawa, M., & Okanoya, K. (2009).
    Song-learning strategies in the Bengalese finch: do chicks choose tutors based on song complexity?
    Animal Behaviour, 78, 1107-1113.
  • Yosida, S., & Okanoya, K. (2009).
    Naked mole-rat is sensitive to social hierarchy encoded in antiphonal vocalization.
    Ethology, 115, 823-831.

2008

  • Morisaka T., Katahira K., & Okanoya K. (2008)
    Variability in preference for conspecific songs with syntactical complexity in female Bengalese finches: towards an understanding of song evolution.
    Ornithological Science, Vol. 7, pp. 75-84.
  • Seki, Y. & Okanoya, K. (2008)
    The effect of sound location in a song-discrimination task by Bengalese finches (Lonchura striata var. domestica).
    Journal of Ethology.
  • Abla D., & Okanoya K. (2008)
    Statistical segmentation of tone sequences activates the left inferior frontal cortex: a near-infrared spectroscopy study.
    Neuropsychologia, Vol. 46, pp. 2787-2795.
  • Nishikawa J., Okada M., & Okanoya K. (2008)
    Population coding of song element sequence in the Bengalese finch HVC.
    European Journal of Neuroscience, Vol. 27, No. 12, pp. 3273-3283.
  • Seki Y, Suzuki K, Takahasi M, & Okanoya K. (2008)
    Song Motor control organizes acoustic patterns on two levels in Bengalese Wnches (Lonchura striata var. domestica).
    Journal of Comparative Physiology. A, Vol. 194, No. 6, pp. 533-543.
  • Matsunaga, E. & Okanoya, K. (2008)
    Vocal area-related expression of the androgen receptor in the budgerigar (Melopsittacus undulatus) brain.
    Brain research, Vol. 1208, pp. 87-94.
  • Katahira K., Abla D., Masuda S. & Okanoya K. (2008)
    Feedback-based error monitoring processes during musical performance: An ERP study.
    Neuroscience Research, Vol. 61, pp. 120-128.
  • Seki Y. & Okanoya K. (2008)
    Functional evidence for internal feedback in the songbird brain nucleus HVC.
    Neuroreport, Vol. 19, pp. 679-682.
  • Okanoya K., Tokimoto N, Kumazawa N., Hihara S., Iriki A. (2008)
    Tool-use training in species of rodent: the emergence of an optimal motor strategy and functional understanding.
    PLoS One, Vol. 3, pp. e1860-1 – e1860-8.
  • Abla D., Katahira K., and Okanoya K. (2008)
    Online assessment of statistical learning by event-related potentials.
    Journal of Cognitive Neuroscience, Vol. 20, No. 6, pp. 952-964.
  • Matsunaga, E. & Okanoya, K. (2008)
    Expression analysis of cadherins in the songbird brain: relationship to vocal system development.
    Journal of Comparative Neurology, Vol. 508, pp. 329-342.
  • Seki, Y., & Okanoya, K. (2008)
    Sex difference in the audio-visual discrimination learning by Bengalese finches (Lonchura striata var. domestica).
    Journal of Comparative Psychology, Vol. 122, No. 1, pp. 26-34.
  • Soma, M., Hasegawa, T. & Okanoya, K. (2008)
    Genetic and developmental effects, and morphological influences on the acoustic structure of individual distance calls in female Bengalese finches Lonchura striata var. domestica.
    Journal of Avian Biology, Vol. 39, pp. 101-107.

2007

  • Katahira K., Okanoya K., and Okada M. (2007)
    A neural network model for generating complex birdsong syntax.
    Biological Cybernetics 97 pp.441-448.
  • Okanoya K. (2007)
    Language evolution and an emergent property.
    Current Opinion in Neurobiology 17: 271-276.
  • Fujii, N., Abla, D., Kudo, N., Hihara, S., Okanoya, K. & Iriki, A.(2007)
    Prefrontal activity during koh-do incense discrimination.
    Neuroscience Research 59 pp.257-264.
  • Okumura, T., Okanoya, K., and Tani, J. (2007)
    Application of light-cured dental adhesive resin for mounting electrodes or microdialysis probes in chronic experiments.
    Journal of Visualized Experiments, 6.
  • Soma, M., Saito, D. S., Hasegawa, T. & Okanoya, K. (2007)
    Sex-specific maternal effect on egg mass, laying order, and sibling competition in the Bengalese finch (Lonchura striata var. domestica).
    Behavioral Ecology and Sociobiology 61 pp.1695-1705.
  • Yosida S. Kobayasi KI. Ikebuchi M. Ozaki R. and Okanoya K.(2007)
    Antiphonal vocalization of a subterranean rodent, the Naked Mole-Rat(Heterocephalus glaber)
    Ethology 113 pp.703-710.
  • Katahira K. Kawamura M. Okanoya K. and Okada M. (2007)
    Retrieval of branching sequences in an associative memory model with common external input and bias input.
    Journal of the Physical Society of Japan 76 pp.044804-1 – 044804-8.

2006

  • Soma, M., Takahasi, M., Ikebuchi, M., Yamada, H., Suzuki, M., Hasegawa, T. & Okanoya, K. (2006)
    Early rearing conditions affect the development of body size and song in Bengalese finches.
    Ethology 112: 1071-1078.
  • Seki, Y., Okanoya. K. (2006)
    Effects of visual stimulation on the auditory responses of the HVc song control nucleus in anesthetized Bengalese Finches.
    Ornithological Science 5: 39-46.
  • Tobari Y., Okumura T., Tani J. and Okanoya K.(2006)
    Non-singing female Bengalese finches (Lonchura striata var. domestica) possess neuronal projections connecting a song learning region to a song motor region.
    Ornithological Science 5: 47-55.
  • Soma, M., Takahasi, M., Hasegawa, T. & Okanoya, K. (2006)
    Trade-offs and correlations among multiple song traits in Bengalese finches.
    Ornithological Science 5: 77-84.
  • Takahasi M., Kagawa H., Ikebuchi M. and Okanoya K. (2006)
    Case studies of song and call learning by a hybrid Bengalese-Zebra Finch and Bengalese-fostered Zebra Finches: Assessing innate factors in vocal learning.
    Ornithological Science 5: 85-94.
  • Nishikawa J. and Okanoya K. (2006)
    Dynamical neural representation of song syntax in Bengalese Finch: a model study.
    Ornithological Science 5: 95-103.

2005

  • Takahasi Miki, Ikebuchi Maki & Okanoya Kazuo (2005)
    Spatiotemporal properties of visual stimuli for song induction in Bengalese finches.
    NeuroReport? 16: 1339-1343.
  • Yasko Tobari, Koji Z. Nakamura & Kazuo Okanoya (2005)
    Sex differences in the telencephalic song control circuitry in Bengalese finches (Lonchura striata var. domestica).
    Zoological Science 22: 1089-1094.

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