研究紹介

Uther, M., Ylinen, S., Latvala, A., Akahane-Yamada, R., & Iverson, P.,
Training of English vowel perception by Finnish speakers to focus on spectral rather than durational cues, the 155th Meeting of the Acoustical Society of America,
2008年7月3日, Paris, France

Tajima, K., Kato, H., Rothwell, A., Akahane-Yamada, R., & Munhall, K.G.,
Training English listeners to perceive phonemic length contrasts in Japanese, J. Acoust. Soc. Am. 123 397, 2008

Ikuma, Y., & Akahane-Yamada, R.,
Effects of learners' L2 proficiency and acoustic/semantic contexts of stimuli on the phoneme identification training,
4th Joint Meeting of the Acoustical Society of America and the Acoustical Society of Japan,
2006年11月30日, Honolulu, Hawaii, USA

Kato, H., Tajima, K., Rothwell, A., Akahane-Yamada, R., & Munhall, K.G.,
Categorization of phonemic length contrasts in Japanese by native and non-native listeners,
4th Joint Meeting of the Acoustical Society of America and the Acoustical Society of Japan,
2006年11月30日, Honolulu, Hawaii, USA

Tajima, K., Kato, H., Rothwell, A., Akahane-Yamada, R., & Munhall, K.G.,
Effects of exposure and training on perception of Japanese length contrasts by English listeners, 4th Joint Meeting of the Acoustical Society of America and the Acoustical Society of Japan,
2006年11月30日, Honolulu, Hawaii, USA

Kawahara, H., & Akahane-Yamada, R.,
STRAIGHT as a research tool for L2 study: How to manipulate segmental and supra-segmental features, 4th Joint Meeting of the Acoustical Society of America and the Acoustical Society of Japan,
2006年11月29日, Honolulu, Hawaii, USA

Akahane-Yamada, R., Adachi, T., & Kawahara, H.,
Tools for speech perception, production, and training studies: Web-based second language training system, and a speech resynthesis system, 4th Joint Meeting of the Acoustical Society of America and the Acoustical Society of Japan,
2006年11月29日, Honolulu, Hawaii, USA

Daniel Callan, Jeff Jones, Akiko Callan and Reiko Akahane-Yamada,
"Neural Processes Underlying Perception and Production of a Difficult Non-native Phonetic Contrast,"
6th International Seminar on Speech Production (2003.12)

Kanae Nishi, Reiko Akahane-Yamada, Rieko Kubo, and Winifred Strange,
"Acoustic comparisons of Japanese and English vowels produced by native speakers of Japanese,"
J. Acoust. Soc. Am. 114, No.4, Pt2 of 2, p.2364 (Abstracts of 146th Meeting of the Acoustical Society of America,)(2003.11)

Sachiko Koyama, Srikantan Nagarajan, Timothy Roberts, and Atsuko Gunji, Reiko Akahane-Yamada, John Houde, and Micheal Merzenich,
"Effects of exposure to muliple languages in early life: An MEG study using adult American English speakers,"
International Conference on Auditory Conrtex 2003, pp.31 (2003.9)

Hiroaki Kato, Masumi Nukina, Hideaki Kawahara and Reiko Akahane-Yamada,
"Influence of recording equipment on the identification of second language phoneme contrasts,"
8th Europian Conference on Speech Communication and Technology (Eurospeech 2003),
pp.3157-3160 (2003.9)

Katsura Aoyama, James E. Flege, Susan G. Guion, and Reiko Akahane-Yamada, and Tsuneo Yamada,
"Foreign accent in English words produced by Japanese children and adults,"
Proc. 15th Int. Congress of Phonetic Sciences (ICPhS 2003), pp.3201-3204(2003.8)

Hiroaki Kato, Makiko Muto, Minoru Tsuzaki and Yoshihiro Sagisaka,
"Relationship between control precision and perceptual sensitivity to segmental durations,"
15th International Congress of Phonetic Sciences (ICPhS 2003), CD-ROM pp.2043-2046 (2003.8)

Keiichi Tajima, Hiroaki Kato, Amanda Rothwell and Kevin Munhall,
"Perception of phonemic length contrasts in Japanese by native and non-native listeners,"
15th International Congress of Phonetic Sciences (ICPhS 2003), pp.1585-1588 (2003.8)

Daniel Callan and Reiko Akahane-Yamada,
"Cerebro-Cerebellar connectivity implicated with perceptual learning of the English /r-l/ phonetic contrast by native Japanese speakers,"
15th International Congress of Phonetic Sciences (ICPhS 2003), CD-ROM, pp.2533-2536 (2003.8)

Daniel Callan, Jeff Jones, Akiko Callan and Reiko Akahane-Yamada,
"Neural Processes Underlying Native and Second-Language Phonetic Perception,"
Ninth Annual Meeting of the Organization for Human Brain Mapping (OHBM) (2003.6)

河原英紀, 松井久美,
"Auditory morphing based on an elastic perceptual distance metric in an interference-free time-frequency representation,"
ICASSP'03 IEEE International Conference on Acoustics, Speech and Signal Processing, SPEECH-L11.4 Vol.I of ?, Speech Processing I. I-256-259 (2003.4)

Reiko Akahane-Yamada, Tomoko Takada and Rieko Kubo,
"Effect of age on perceptual learning of second-language phonetic contrasts,"
J. Acoust. Soc. Am. 112, No.5, Pt.2 of 2, p.2386
(Abstracts of 144th Meeting of Acoustical Sciety of America,
First Pan-American / Iberian Meeting on Acoustics) (2002.12)

Amanda Rothwell and Reiko Akahane-Yamada,
"Does semantic context help Japanese speakers to identify English /r/ and /l/?"
J. Acoust. Soc. Am. 112, No.5, Pt.2 of 2, p.2386
(Abstracts of 144th Meeting of Acoustical Sciety of America,
First Pan-American / Iberian Meeting on Acoustics) (2002.12)

Daniel Callan, Keiichi Tajima, Akiko Callan, Rieko Kubo, Shinobu Masaki and Reiko Akahane-Yamada,
"Learning-Induced Neural Plasticity Associated with Acquisition of a Difficult Second-language Phonetic contrast,"
J. Acoust. Soc. Am. 112, No.5, Pt.2 of 2, p.2236
(Abstracts of 144th Meeting of Acoustical Society of America, First Pan-American / Iberian Meeting on Acoustics)(2002.12)

Keiichi Tajima, Reiko Akahane-Yamada and Tsuneo Yamada,
"Perceptual learning of second-language syllable rhythm by elderly listeners,"
Proc. 7th International Conference on Spoken Language Processing (ICSLP) 2002, pp.249-252 (2002.09)

Reiko Akahane-Yamada and Robert A. Fox,
"Development of a large-scale English speech database,"
Proc. Linguistics and Phonetics (LP) 2002, pp.70-80 (2002.9)

Sachiko Koyama, Tomoyuki Naito, Atsuko Gunji and Reiko Akahane-Yamada,
Timothy P.L.Roberts, Hirooki Yabe, Shoko Oiwa, Rieko Kubo, and Ryusuke Kakigi,
"Perceptual Asymmetry in Speech Sound Perception Revealed by Cortical Magnetic Responses,"
Society for Neuroscience 31st Annual Meeting (2001.11)

Hiroaki Kato, Keiichi Tajima and Reiko Akahane-Yamada,
"Native and non-native perception of phonemic length contrasts in Japanese,"
J. Acoust. Soc. Am. 110, No.5, Pt.2 of 2, pp.26-28
(Abstracts of 142nd Meeting Acoustical Society of America) (2001.11)

Daniel Callan, Keiichi Tajima, Akiko Callan, Reiko Akahane-Yamada, and Shinobu Masaki,
"Neural Processes Underlying Perceptual Learning of a Difficult Second Language Phonetic Contrast,"
Eurospeech 2001 Scandinavia (2001.9)

Keiichi Tajima, Donna Erickson and Reiko Akahane-Yamada,
"Perceptual training of syllable structure in a second language,"
Proc. 15th General Meeting of the Phonetic Society of Japan, pp.127-132 (2001.9)

Donna Erickson, Keiichi Tajima, Reiko Akahane-Yamada, and Tsuneo Yamada,
"Computer-aided prosody training for perception of English syllables,"
Proc. The Foreign Language Education and Technology (FLEAT) Conference IV, pp.117-124 (2001.7)

Sachiko Koyama, Atsuko Gunji, Reiko Akahane-Yamada, Timothy P.L.Roberts, Hirooki Yabe, Rieko Kubo, Shoko Oiwa and Ryusuke Kakigi,
"Change in Mismatch Fields Associated with Foreign Speech Perception Learning,"
CNS Annual Meeting Program 2001, p.99 (2001.3)

Rieko Kubo, Reiko Akahane-Yamada, and Tsuneo Yamada,
"Influence of aging on Perceptual Learning of Second-Language Phonetic Contrasts,"
J. Acoust. Soc. Am. 108, No.5, Pt.2 of 2, p.2653
(Abstracts of Joint 140th Meeting ASA/NOISE-CON 2000) (2000.11)

Keiichi Tajima, Daniel E. Callan, Akiko Callan, Rieko Kubo, Reiko Akahane-Yamada, Sachiko Koyama and Shinobu Masaki,
"Neural Processes Underlying Perception of the English /r/-/l/ Contrast by Native Japanese Speakers before and after Identification Training: An fMRI Study,"
J. Acoust. Soc. Am. 108, No.5, Pt.2 of 2, p.2652
(Abstracts of Joint 140th Meeting ASA/NOISE-CON 2000)(2000.11)

Ryo Komaki, Keiichi Tajima, Reiko Akahane-Yamada, and Youngon Choi,
"Cross-linguistic perceptual assimilation of American English /r/-/l/ by Korean speakers and Japanese speakers,"
J. Acoust. Soc. Am. 108, No.5, Pt.2 of 2, p.2652
(Abstracts of Joint 140th Meeting ASA/NOISE-CON 2000)(2000.11)

Keiichi Tajima, Donna Erickson, Kyoko Nagao and Reiko Akahane-Yamada,
"Factors affecting native Japanese speakers' production of intrusive (epenthetic) vowels in English words,"
Proc. International Conference on Spoken Language Processing (ICSLP) 2000,III, pp.558-561 (2000.10)

Sachiko Koyama, Hiroshi Yabe, Reiko Akahane-Yamada, Atsuko Gunji, Rieko Kubo, Shoko Oiwa and Ryusuke Kakigi,
"MMMm by the contrast between /l/ and /r/ in Japanese subjects: A vowel masked preceding foreign consonants,"
Second International Congress on Mismatch Negativity and its Clinical Applications (2000.6)

Reiko Akahane-Yamada, Erik McDermott, Takahiro Adachi and Hideki Kawahara,
"Effect of Computer-Assisted Training on Production of English /r/ and /l/ by Japanese,"
J. Acoust. Soc. Am. 106, No.4, p.2154
(Abstracts of 138th Meeting Acoustical Society of America) (1999.11)

Rieko Kubo, Reiko Akahane-Yamada and Hideki Kawahara,
"Using Resynthesized Speech in /r/-/l/ Production and Perception Training,"
J. Acoust. Soc. Am. 106, No.4, p.2150
(Abstracts of 138th Meeting Acoustical Society of America) (1999.11)

Donna Erikson and Reiko Akahane-Yamada,
"Syllable counting and mora units in language perception,"
Abstracts of 14th Int. Congress of Phonetic Sciences (ICPhS)'99, p.71
Proc. 14th International Congress on Phonetic Sciences (ICPhS)'99, Vol.2, pp.1479-1482 (1999.9)

Reiko Akahane-Yamada,
"Toward further understanding of second language speech learning: An approach utilizing speech technology,"
J. Acoust. Soc. Am. 105, No.2, p.1032
(Abstracts of 137th Meeting Acoustical Society of America)(1999.3)

Reiko Akahane-Yamada, Erik McDermott, Takahiro Adachi, Hideki Kawahara and John S. Pruitt,
"Computer-based second language production training by using spectrographic representation and HMM-based speech recognition scores,"
Abstract 5th International Conference on Spoken Language Processing (ICSLP)'98, We5C6, pp.1-236
Proc. 5th International Conference on Spoken Language Processing (ICSLP)'98, 5, pp.1747-1750 (1998.11)

Reiko Akahane-Yamada, Takahiro Adachi, Hideki Kawahara, John S. Pruitt and Erik McDermott
"Toward the optimization of computer-based second language production training,"
Speech Technology in Language Learning, pp.111-114 (1998.5)

Reiko Akahane-Yamada, Winifred Strange, Jesica C. Downs-Pruitt and Yasushi Masuda,
"Modification of L2 vowel production by intensive perception training as evaluated by acoustic analysis and native speakers,"
J. Acoust. Soc. Am. 103, No.5, Pt.2, 5pSC26, p.3089,
Proc. Congress on Acoustics and 135th Meeting Acoustical Society of America 4, pp.2971-2972 (1998.6)

Hideki Kawahara and Reiko Akahane-Yamada,
"Perceptual effects of spectral envelope and F0 manipulations using STRAIGHT method,"
J. Acoust. Soc. Am. 103, No.5, Pt.2, 1aSC27, p.2776,
Proc. Congress on Acoustics and 135th Meeting Acoustical Society of America 1, pp.255-256 (1998.6)

Jesica C. Downs-Pruitt, Reiko Akahane-Yamada, Reiko Mazuka and Akiko Hayashi,
"The effect of immersion on second language productions: The acquisition of American English /r/ and /l/ by Japanese children,"
J. Acoust. Soc. Am. 103, No.5, Pt.2, 5pSC25, p.3089
Proc. Congress on Acoustics and 135th Meeting Acoustical Society of America 4, pp.2969-2970 (1998.6)

John S. Pruitt, Reiko Akahane-Yamada, and Winifred Strange,
"Perceptual assimilation of Hindi dental and retroflex stop-consonants by native English and Japanese speakers,"
J. Acoust. Soc. Am. 103, No.5, Pt.2, 5pSC36, p.3091,
Proc. Congress on Acoustics and 135th Meeting Acoustical Society of America 4, pp.2991-2992 (1998.6)

Rieko Kubo, John S. Pruitt and Reiko Akahane-Yamada,
"Isolating the critical segment of AE /r/ and /l/ to enhance non-native perception,"
J. Acoust. Soc. Am. 103, No.5, Pt.2, 5pSC23, p.3089
Proc. Congress on Acoustics and 135th Meeting Acoustical Society of America 4, pp.2965-2966 (1998.6)

Susan G. Guion, James E. Flege, Reiko Akahane-Yamada, and Jesica C. Downs-Pruitt,
"Acquisition of English phonetic categories by Japanese speakers: Evidence from categorical discrimination tests,"
J. Acoust. Soc. Am. 103, No.5, Pt.2, 5pSC27, pp.3089-3090,
Proc. Congress on Acoustics and 135th Meeting Acoustical Society of America 4, pp.2973-2974 (1998.6)

Mieko Ueno, Patrice S. Beddor and Reiko Akahane-Yamada,
"Is allophonic variation in Japanese /r/ a factor in Japanese
listeners' difficulty in perceiving English /r-l/?,"
J. Acoust. Soc. Am. 103, No.5, Pt.2, 5pSC41, p.3092,
Proc. Congress on Acoustics and 135th Meeting Acoustical Society of America 4, pp.3001-3002 (1998.6)

John S. Pruitt, Hideki Kawahara, Reiko Akahane-Yamada, and Rieko Kubo,
"Methods of enhancing speech stimuli for perceptual training: Exaggerated articulation, context truncation, and "STRAIGHT" re-synthesis,"
Speech Technology in Language Learning, pp.107-110 (1998.5)

Reiko Akahane-Yamada and Yoh'ichi Tohkura,
"Effects of audio and audio/visual training on speech communication by non-native listeners,"
International Symposium on Speech Perception by Non-Native Listeners,
American Speech-Language Hearing Association (ASHA) Convention Program, p.269 (1997.11)

Reiko Akahane-Yamada, Ann R. Bradlow, David B. Pisoni and Yoh'ichi Tohkura,
"Effects of audio/visual training on the identification of English /r/ and /l/ by Japanese speakers,"
J. Acoust. Soc. Am.102, No.5, Pt.2, p.3137
(Abstracts of 134th meeting of Acoustical Society of America) (1997.11)

Winifred Strange and Reiko Akahane-Yamada,
"Effects of identification training on Japanese adults' perception of American English vowels,"
J. Acoust. Soc. Am.102, No.5, Pt.2, p.3137
(Abstracts of 134th meeting of Acoustical Society of America) (1997.11)

Reiko Akahane-Yamada, Takahiro Adachi, and Hideki Kawahara,
"Toward the optimization of training for a second language speech perception,"
Proc. ASVA'97 -International Symposium on Simulation, Visualization and
Auralization for Acoustic Research and Education-, pp.565-570 (1997.4)

Reiko Akahane-Yamada,
"Learning Non-Native Speech Contrasts: What Laboratory Training Studies Tell Us,"
J. Acoust. Soc. Am. 100, No.4 Pt.2, p.2728
Proc. ASA/ASJ Third Joint Meeting, 3pSC21, pp.953-958 (1996.10)

Ann R. Bradlow and Reiko Akahane-Yamada,
"Three Converging Tests of Improvement in Speech Production after Perceptual Identification Training on a Non-Native Phonetic Contrast,"
J. Acoust. Soc. Am. 100, No.4 Pt.2, p.2725
(Abstracts of ASA/ASJ Third Joint Meeting) (1996.10)

Reiko Akahane-Yamada, Yoh'ichi Tohkura, Ann R. Bradlow and David B. Pisoni,
"Does training in speech perception modify speech production?,"
Proc. 4th International Conference on Spoken Language Processing (ICSLP) '96,
Philadelphia, pp.606-609 (1996.10)

Winifred Strange, Reiko Akahane-Yamada, Brett H. Fitzgerald and Rieko Kubo
"Assimilation of American English vowels by Japanese listeners,"
Proc. 4th International Conference on Spoken Language Processing (ICSLP) '96,
Philadelphia, pp.2458-2461 (1996.10)

Diane Kewley-Port, Reiko Akahane-Yamada and Kiyoaki Aikawa,
"Intelligibility and acoustic correlates of Japanese accented English vowels,"
Proc. 4th International Conference on Spoken Language Processing (ICSLP) '96,
Philadelphia, pp.450-453 (1996.10)

James S. Magnuson and Reiko Akahane-Yamada,
"Acoustic correlates to the effects of talker variability on the
perception of English /r/ and /l/ by Japanese listeners,"
Proc. 4th International Conference on Spoken Language Processing (ICSLP) '96,
Philadelphia, pp.2518-2521 (1996.10)

Shinobu Masaki, Reiko Akahane-Yamada, Mark K. Tiede, Yasuhiro, Shimada and Ichiro Fujimoto,
"An MRI-based analysis of the English /r/ and /l/ articulations by native English and Japanese speakers,"
Proc. 4th International Conference on Spoken Language Processing (ICSLP) '96,
Philadelphia, pp.1581-1584 (1996.10)

Tsuneo Yamada, Reiko A. Yamada and Winifred Strange,
"Perceptual learning of Japanese moraic syllables by native speakers of American English"
Int. J. Psychology, 31, Issues 3 and 4,
Abstract of the XXVI International Congress of Psychology, 284.73, p.204 (1996.8)

Reiko A. Yamada, Winifred Strange, Brett H. Fitzgerald and Rieko Kubo,
"Effects of speech style on the perceptual assimilation of American English vowels by Japanese speakers,"
Abstracts of 131st Meeting of the Acoustical Society of America,
J. Acoust. Soc. Am. 99, No.4 Pt.2, p.2548 (1996.4)

Ann R. Bradlow, David B. Pisoni, Reiko Akahane-Yamada and Yoh'ichi Tohkura,
"Perception and production of the English /r/-/l/ contrast by Japanese speakers: Relationship between performance and learning in the two domains,"
J. Acoust. Soc. Am. 98, No.5 Pt.2, 2892-2893
(Abstracts of 130th Meeting of the Acoustical Society of America) (1995.11)

Ann R. Bradlow, David B. Pisoni, Reiko Akahane-Yamada and Yoh'ichi Tohkura,
"Acquisition of the English /r/-/l/ contrast by Japanese speakers: effects of training in perception on production,"
Proc. the XIIIth International Congress of Phonetic Sciences (ICPhS) '95, 4, pp.562-565, Stockholm, Sweden (1995.8)

Tsuneo Yamada, Reiko Akahane-Yamada and Winifred Strange,
"Perceptual learning of Japanese mora syllable by native speakers of American English: Effects of training stimulus sets and initial states,"
Proc. the XIIIth International Congress of Phonetic Sciences (ICPhS)'95, 1, pp.322-325, Stockholm, Sweden (1995.8)

James S. Magnuson and Reiko Akahane-Yamada,
"The effects of talker variability on the acquisition of non-native speech contrasts,"
Proc. the XIIIth International Congress of Phonetic Sciences (ICPhS)'95, 1, pp.306-309, Stockholm, Sweden (1995.8)

Reiko Akahane-Yamada, Yoh'ichi Tohkura, Ann R. Bradlow and David B. Pisoni,
"Effects of perceptual learning on the production of a non-native contarast,"
J. Acoust. Soc. Am. 97, No.5, Pt.2, p. 3418,
(Abstracts of 129th Meeting of the Acoustical Society of America) (1995.5)

James S. Magnuson, Reiko Akahane-Yamada, Yoh'ichi Tohkura and Ann R. Bradlow,
"Testing the importance of talker variability in non-native speech contrast training,"
J. Acoust. Soc. Am. 97, No.5, Pt.2, p. 3417,
(Abstracts of 129th Meeting of the Acoustical Society of America) (1995.5)

Reiko Akahane- Yamada, Winifred Strange, James S. Magnuson, John S. Pruitt and William D. Clarke III.,
"The Intelligibility of Japanese Speakers' Productions of American English /r/, /l/ and /w/, as Evaluated by Native Speakers of American English,"
Proc. 3rd International Conference on Spoken Language Processing (ICSLP'94),
Yokohama,4, S32-21 pp.2023-2026, (Poster presented at ICSLP'94) (1994.9)

James S. Magnuson, Reiko Akahane-Yamada, and Howard C. Nusbaum,
"Are Representations Available for Talker Identification Available for Talker Normalization?,"
Proc. 3rd International Conference on Spoken Language Processing (ICSLP'94),
Yokohama, 4, S21-14, pp.1175-1179, (Poster presented at ICSLP'94) (1994.9)

Kiyoaki Aikawa and Reiko Akahane- Yamada,
"Comparative Study of Spectral Representations in Measuring the English /r/-/l/ Acoustic Perceptual Dissimilarity,"
Proc. 3rd International Conference on Spoken Language Processing (ICSLP'94),
Yokohama, 4, S32-25, pp.2039-2042, (Poster presented at ICSLP'94) (1994.9)

Tsuneo Yamada, Reiko A.kahane-Yamada and Winifred Strange,
"Perceptual Learning of Japanese Mora Syllables by Native Speakers of American English: An Analysis of Acquisition Processes of Speech Perception in Second Language Learning,"
Proc. 3rd International Conference on Spoken Language Processing (ICSLP'94),
Yokohama, 4, S32-17, pp.2007-2010 (Poster presented at ICSLP'94) (1994.9)

James S. Magnuson and Reiko Akahane-Yamada,
"Talker Variability and the Identification of American English /r/ and /l/ by Native Japanese Listeners,"
J. Acoust. Soc. Am. 95, 5, Pt.2, p.2872,
(Poster presented at the Spring meeting of the Acoustical Society of America, Cambridge, MA.) (1994.6)

Kiyoaki Aikawa and Reiko Akahane-Yamada,
"A New Masked Spectrum Representation Applied to English /r/-/l/ Dissimilarity Measurement,"
J. Acoust. Soc. Am. 94, No.3, Pt.2,4pSP4, p.1864
(Abstracts of 126th Meeting of Acoustical Society of America) (1993.10)

Reiko Akahane-Yamada,
"Effect of Extended Training on /r/ and /l/ Identification by Native Speakers of Japanese,"
J. Acoust. Soc. Am. 93, No.4, Pt.2, p.2391
(Abstracts of 125th Meeting of the Acoustical Society of America) (1993.4)

David B. Pisoni, Scott E. Lively, Reiko Akahane-Yamada, Yoh'ichi Tohkura and Tsuneo Yamada,
"Training Japanese Listeners to Identify English /r/ and /l/ : A Replication and Extension,"
J. Acoust Soc. Am. 93, No.4, Pt.2 p.2391,
(Abstracts of 125th Meeting of the Acoustical Society of America) (1993.4)

Reiko Akahane-Yamada and Yoh'ichi Tohkura,
"Age Effect on Acquisition of Non-native Phonemes: Perception of English /r/ and /l/ for Native Speakers of Japanese,"
Proc. the XIIth International Congress of Phonetic Sciences, 4, pp.450-453 (1991)

Reiko Akahane-Yamada and Yoh'ichi Tohkura,
"Perception and Production of Syllable-initial English /r/ and /l/ by Native Speakers of Japanese,"
Proc. International Conference on Spoken Language Processing (ICSLP)'90, Kobe, pp.757-760 (1990)

Reiko Akahane-Yamada, Yoh'ichi Tohkura and Noriko Kobayashi,
"Perceptual Characteristics of English Syllable-Initial /r, l/ for Japanese Listeners,"
J. Acoust. Soc. Am. 86, Suppl.1, S102, (1989)