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IMAGES OF THE MULTILINGUAL BRAIN: THE EFFECT OF AGE OF SECOND LANGUAGE ACQUISITION

Published online by Cambridge University Press:  01 March 2008

Elise Wattendorf  and
Julia Festman
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Abstract

Is it the age of second language acquisition (AoA) that primarily determines the manner of cerebral representation of multiple languages in the brain, or is it proficiency? Here, we review recent neuroimaging studies that aimed at investigating AoA effects by comparing early with late (usually with L2 acquisition onset after 6 years of age) bilinguals during a variety of language tasks on a number of languages. Most studies did indeed report AoA effects. Of particular interest is that the region mainly found to functionally differ between early and late bilinguals is the left inferior frontal gyrus, which was modulated during syntactic processing, word generation, and sentence generation. Additionally, differences were observed in gray-matter density of the posterior parietal cortex as well as in right-hemisphere involvement. Interestingly, despite some convergence of findings from a localizational point of view, underlying causes of organizational and functional differences for the effect of AoA on bilingual language processing still remain to be uncovered. Hypotheses currently used for explaining activation differences are described (notably cortical efficiency, executive control, neuroanatomical changes, and right-hemisphere involvement) in relation to AoA and language proficiency.

Type
Research Article
Information
Annual Review of Applied Linguistics , Volume 28 , March 2008 , pp. 3 - 24
Copyright
Copyright © Cambridge University Press 2008

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References

ANNOTATED REFERENCES

Hull, R., & Vaid, J. (2007). Bilingual language lateralization: A meta-analytic tale of two hemispheres. Neuropsychologia, 45, 1987–2008.Google Scholar
Kim, K. H. S., Relkin, N. R., Lee, K. M., & Hirsch, J. (1997). Distinct cortical areas associated with native and second languages. Nature, 388, 171–174.Google Scholar
Mechelli, A., Crinion, J. T., Noppeney, U., O'Doherty, J., Ashburner, J., Frackowiak, R. S., et al. (2004). Structural plasticity in the bilingual brain: Proficiency in a second language and age at acquisition affect grey-matter density. Nature, 431, 757.CrossRefGoogle Scholar
Wartenburger, I., Heekeren, H. R., Abutalebi, J., Cappa, S. F., Villringer, A., & Perani, D. (2003). Early setting of grammatical processing in the bilingual brain. Neuron, 37, 159–170.CrossRefGoogle ScholarPubMed
Abutalebi, J., & Green, D. (2007). Bilingual language production: The neurocognition of language representation and control. Journal of Neurolinguistics, 20, 242–275.CrossRefGoogle Scholar
Albert, M., & Obler, L. K. (1978). The bilingual brain. New York: Academic Press.Google Scholar
Balaguer, R. D., Sebastián-Gallés, N., Diaz, B., & Rodriguez-Fornells, A. (2005). Morphological processing in early bilinguals: An ERP study of regular and irregular verb processing. Cognitive Brain Research, 25, 312–327.CrossRefGoogle Scholar
Birdsong, D. (2006). Age and second language acquisition and processing: A selective overview. In Gullberg, M. and Indefrey, P. (Eds.), The cognitive neuroscience of second language acquisition (pp. 9–49). Malden, MA: Blackwell.Google Scholar
Bookheimer, S. (2002). Functional MRI of language: New approaches to understanding the cortical organization of semantic processing. Annual Review of Neuroscience, 25, 151–188.Google Scholar
Briellmann, R. S., Saling, M. M., Connell, A. B., Waites, A. B., Abbott, D. F., & Jackson, G. D. (2004). A high-field functional MRI study of quadri-lingual subjects. Brain and Language, 89, 531–542.Google Scholar
Calabrese, P., Neufeld, H., Falk, A., Markowitsch, H. J., Muller, C., Heuser, L., et al. (2001). Word generation in bilinguals: fMRI study with implications for language and memory processes. Fortschritte der Neurologie Psychiatrie, 69, 42–49.Google Scholar
Carter, C. S., Braver, T. S., Barch, D. M., Botvinick, M. M., Noll, D., & Cohen, J. D. (1998). Anterior cingulate cortex, error detection, and the online monitoring of performance. Science, 280, 747–749.CrossRefGoogle ScholarPubMed
Chee, M. W. L., Caplan, D., Soon, C. S., Sriram, N., Tan, E. W. L., Thiel, T., et al. (1999). Processing of visually presented sentences in Mandarin and English studied with fMRI. Neuron, 23, 127–137.Google Scholar
Chee, M. W. L., Hon, N., Lee, H. L., & Soon, C. S. (2001). Relative language proficiency modulates BOLD signal change when bilinguals perform semantic judgments. NeuroImage, 13, 1155–1163.CrossRefGoogle ScholarPubMed
Chee, M. W. L., Weekes, B., Lee, K. M., Soon, C. S., Schreiber, A., Hoon, J. J., et al. (2000). Overlap and dissociation of semantic processing of Chinese characters, English words, and pictures: Evidence from fMRI. NeuroImage, 12, 392–403.CrossRefGoogle ScholarPubMed
Clahsen, H., & Felser, C. (2006). How native-like is non-native language processing? Trends in Cognitive Sciences, 10, 564–570.Google Scholar
Coggins, P. E., Kennedy, T. J., & Armstrong, T. A. (2004). Bilingual corpus callosum variability. Brain and Language, 89, 69–75.CrossRefGoogle ScholarPubMed
Colombo, J. (1982). The critical period concept: Research, methodology, and theoretical issues. Psychological Bulletin, 91, 260–275.Google Scholar
Crosson, B., Benefield, H., Cato, M. A., Sadek, J. R., Moore, A. B., Wierenga, C. E., et al. (2003). Left and right basal ganglia and frontal activity during language generation: Contributions to lexical, semantic, and phonological processes. Journal of the International Neuropsychological Society, 9, 1061–1077.Google Scholar
Curtis, C. E., & D'Esposito, M. (2003). Persistent activity in the prefrontal cortex during working memory. Trends in Cognitive Sciences, 7, 415–423.Google Scholar
De Bleser, R., Dupont, P., Postler, J., Bormans, G., Speelman, D., Mortelmans, L., et al. (2003). The organisation of the bilingual lexicon: A PET study. Journal of Neurolinguistics, 16, 439–456.Google Scholar
De Bot, K. (2008). The imaging of what in the multilingual mind? Second Language Research, 24, 111–133.Google Scholar
Dehaene, S., Dupoux, E., Mehler, J., Cohen, L., Paulesu, E., Perani, D., et al. (1997). Anatomical variability in the cortical representation of first and second language. NeuroReport, 8, 3809–3815.Google Scholar
Dufour, R., & Kroll, J. F. (1995). Matching words to concepts in 2 languages: A test of the concept mediation model of bilingual representation. Memory and Cognition, 23, 166–180.Google Scholar
Eigsti, I. M., & Schuh, J. M. (2008). Neurobiological underpinnings of language in autism spectrum disorders. Annual Review of Applied Linguistics, 28, this issue.Google Scholar
Ellis, N. C., & Laporte, N. (1997). Contexts of acquisition: Effects of formal instruction and naturalistic exposure on second language acquisition. In de Groot, A. M. B. & Kroll, J. F., Tutorials in bilingualism: Psycholinguistic perspectives (pp. 53–83). Hillsdale, NJ: Erlbaum.Google Scholar
Fabbro, F. (2001). The bilingual brain: Cerebral representation of languages. Brain and Language, 79, 211–222.Google Scholar
Francis, W. F. (2003). Discussion of colloquium panel on recent investigations of the bilingual brain. Presented at the 4th International Symposium on Bilingualism, Tempe, AZ.Google Scholar
Frenck-Mestre, C., Anton, J. L., Roth, M., Vaid, J., & Viallet, F. (2005). Articulation in early and late bilinguals’ two languages: Evidence from functional magnetic resonance imaging. NeuroReport, 16, 761–765.Google Scholar
Friederici, A. D., Seinhauer, K., & Pfeiffer, E. (2001). Brain signatures of artificial language processing: Evidence challenging the critical period hypothesis. Proceedings of the National Academy of Sciences, 99, 529–534.Google Scholar
Gaser, C., & Schlaug, G. (2003). Brain structures differ between musicians and non-musicians. Journal of Neuroscience, 23, 9240–9245.CrossRefGoogle ScholarPubMed
Golestani, N., Paus, T., & Zatorre, R. J. (2002). Anatomical correlates of learning novel speech sounds. Neuron, 35, 997–1010.CrossRefGoogle ScholarPubMed
Green, D., Crinion, J., & Price, C. (2006). Convergence, degeneracy and control. In Gullberg, M. & Indefrey, P. (Eds.), The cognitive neuroscience of second language acquisition (pp. 99–125). Malden, MA: Blackwell.Google Scholar
Green, D. (2008). Bilingual aphasia: Adapted language networks and their control. Annual Review of Applied Linguistics, 28, this issue.Google Scholar
Grosjean, F. (1982). Life with two languages. An introduction to bilingualism. Cambridge, MA: Harvard University Press.Google Scholar
Grossman, M., Cooke, A., DeVita, C., Lee, C., Alsop, D., Detre, J., et al. (2003). Grammatical and resource components of sentence processing in Parkinson's disease: An fMRI study. Neurology, 60, 775–781.Google Scholar
Hernandez, A. E., & Meschyan, G. (2006). Executive function is necessary to enhance lexical processing in a less proficient L2: Evidence from fMRI during picture naming. Bilingualism: Language and Cognition, 9, 177–188.Google Scholar
Indefrey, P. (2006). A meta-analysis of hemodynamic studies on first and second language processing: Which suggested differences can we trust and what do they mean? Language Learning, 56, 279–304.Google Scholar
Jeong, H., Sugiura, M., Sassa, Y., Yokoyania, S., Horie, K., Sato, S., et al. (2007). Cross-linguistic influence on brain activation during second language processing: An fMRI study. Bilingualism: Language and Cognition, 10, 175–187.Google Scholar
Klein, D., Milner, B., Zatorre, R. J., Zhao, V., & Nikelski, J. (1999). Cerebral organization in bilinguals: A PET study of Chinese-English verb generation. NeuroReport, 10, 2841–2846.CrossRefGoogle ScholarPubMed
Lamm, C., Bauer, H., Vitouch, O., & Gstattner, R. (1999). Differences in the ability to process a visuo-spatial task are reflected in event-related slow cortical potentials of human subjects. Neuroscience Letters, 269, 137–140.CrossRefGoogle ScholarPubMed
Lee, H., Devlin, J. T., Shakeshaft, C., Stewart, L. H., Brennan, A., Glensman, J., et al. (2007). Anatomical traces of vocabulary acquisition in the adolescent brain. Journal of Neuroscience, 27, 1184–1189.CrossRefGoogle ScholarPubMed
Lenneberg, E. H. (1967). Biological foundations of language. New York: Wiley.CrossRefGoogle Scholar
Lucas, T. H., McKhann, G. M., & Ojemann, G. A. (2004). Functional separation of languages in the bilingual brain: A comparison of electrical stimulation language mapping in 25 bilingual patients and 117 monolingual control patients. Journal of Neurosurgery, 101, 449–457.CrossRefGoogle Scholar
Mahendra, N., Plante, E., Magloire, J., Milman, L., & Trouard, T. P. (2003). FMRI variability and the localization of languages in the bilingual brain. NeuroReport, 14, 1225–1228.CrossRefGoogle ScholarPubMed
Marian, V., & Spivey, M. (2003). Bilingual and monolingual processing of competing lexical items. Applied Psycholinguistics, 24, 173–193.CrossRefGoogle Scholar
Mummery, C. J., Ashburner, J., Scott, S. K., & Wise, R. J. S. (1999). Functional neuroimaging of speech perception in six normal and two aphasic subjects. Journal of the Acoustical Society of America, 106, 449–457.Google Scholar
Neubauer, A. C., Grabner, R. H., Freudenthaler, H. H., Beckmann, J. F., & Guthke, H. (2004). Intelligence and individual differences in becoming neurally efficient. Acta Psychologica, 116, 55–74.Google Scholar
Neville, H., & Bavelier, D. (2002). Human brain plasticity: Evidence from sensory deprivation and altered language experience. Plasticity in the Adult Brain: From Genes to Neurotherapy, 138, 177–188.Google Scholar
Ofan, R. H., & Zohary, E. (2007). Visual cortex activation in bilingual blind individuals during use of native and second language. Cerebral Cortex, 17, 1249–1259.CrossRefGoogle ScholarPubMed
Pallier, C., Dehaene, S., Poline, J. B., LeBihan, D., Argenti, A. M., Dupoux, E., et al. (2003). Brain imaging of language plasticity in adopted adults: Can a second language replace the first? Cerebral Cortex, 13, 155–161Google Scholar
Paradis, M. (1994). Neurolinguistic aspects of implicit and explicit memory: Implications for bilingualism and SLA. In Ellis, N. (Ed.), Implicit and explicit language learning (pp. 393–419). London: Academic Press.Google Scholar
Paradis, M. (2004). A neurolinguistic theory of bilingualism. Amsterdam, Philadelphia: John Benjamins.Google Scholar
Parks, R. W., Loewenstein, D. A., Dodrill, K. L., Barker, W. W., Yoshii, F., Chang, J. Y., et al. (1988). Cerebral metabolic effects of a verbal fluency test: A PET scan study. Journal of Clinical and Experimental Neuropsychology, 10, 565–575.Google Scholar
Penfield, W., & Roberts, L. (1959). Speech and brain mechanisms. Princeton, NJ: Princeton University Press.Google Scholar
Perani, D., & Abutalebi, J. (2005). The neural basis of first and second language processing. Current Opinion in Neurobiology, 15, 202–206.Google Scholar
Perani, D., Abutalebi, J., Paulesu, E., Brambati, S., Scifo, P., Cappa, S. F., et al. (2003). The role of age of acquisition and language usage in early, high-proficient bilinguals: An fMRI study during verbal fluency. Human Brain Mapping, 19, 170–182.CrossRefGoogle ScholarPubMed
Perani, D., Dehaene, S., Grassi, F., Cohen, L., Cappa, S. F., Dupoux, E., et al. (1996). Brain processing of native and foreign languages. NeuroReport, 7, 2439–2444.CrossRefGoogle ScholarPubMed
Perani, D., Paulesu, E., Galles, N. S., Dupoux, E., Dehaene, S., Bettinardi, V., et al. (1998). The bilingual brain: Proficiency and age of acquisition of the second language. Brain, 121, 1841–1852.CrossRefGoogle ScholarPubMed
Price, C. J. (2000). The anatomy of language: Contributions from functional neuroimaging. Journal of Anatomy, 197, 335–359.CrossRefGoogle ScholarPubMed
Price, C. J., Moore, C. J., & Frackowiak, R. S. J. (1996). The effect of varying stimulus rate and duration on brain activity during reading. NeuroImage, 3, 40–52.CrossRefGoogle ScholarPubMed
Pu, Y. L., Liu, H. L., Spinks, J. A., Mahankali, S., Xiong, J. H., Feng, C. M., et al. (2001). Cerebral hemodynamic response in Chinese (first) and English (second) language processing revealed by event-related functional MRI. Magnetic Resonance Imaging, 19, 643–647.Google Scholar
Reiterer, S., Hemmelmann, C., Rappelsberger, P., & Berger, M. L. (2005). Characteristic functional networks in high- versus low-proficiency second language speakers detected also during native language processing: An explorative EEG coherence study in 6 frequency bands. Cognitive Brain Research, 25, 566–578.CrossRefGoogle ScholarPubMed
Rodriguez-Fornells, A., Balaguer, R. D., & Munte, T. F. (2006). Executive control in bilingual language processing. Language Learning, 56, 133–190.Google Scholar
Schreuder, R., & Weltens, B. (1993). The bilingual lexicon. Amsterdam: John Benjamins.Google Scholar
Segalowitz, N., & Hulstijn, J. (2005). Automaticity in bilingualism and second language learning. In Kroll, J. F. & de Groot, A. B. B. (Eds.), Handbook of bilingualism: Psycholinguistic approaches (pp. 371–388). New York: Oxford University Press.Google Scholar
Stowe, L. A., Haverkort, M., & Zwarts, F. (2005). Rethinking the neurological basis of language. Lingua, 115, 997–1042.CrossRefGoogle Scholar
Tan, L. H., Spinks, J. A., Feng, C. M., Siok, W. T., Perfetti, C. A., Xiong, J. H., et al. (2003). Neural systems of second language reading are shaped by native language. Human Brain Mapping, 18, 158–166.CrossRefGoogle ScholarPubMed
Tatsuno, Y., & Sakai, K. L. (2005). Language-related activations in the left prefrontal regions are differentially modulated by age, proficiency, and task demands. Journal of Neuroscience, 25, 1637–1644.Google Scholar
Thompson-Schill, S. L., D'Esposito, M., Aguirre, G. K., & Farah, M. J. (1997). Role of left inferior prefrontal cortex in retrieval of semantic knowledge: A reevaluation. Proceedings of the National Academy of Sciences, 94, 14792–14797.CrossRefGoogle ScholarPubMed
Urbanik, A., Binder, M., Sobiecka, B., & Kozub, J. (2001). FMRI study of sentence generation by early bilinguals differing in proficiency level. Rivista di Neuroradiologia, 14, 11–16.Google Scholar
Vingerhoets, G., Van Borsel, J., Tesink, C., Van Den Noort, M., Deblaere, K., Seurinck, R., et al. (2003). Multilingualism: An fMRI study. NeuroImage, 20, 2181–2196.Google Scholar
Warburton, E., Wise, R. J. S., Price, C. J., Weiller, C., Hadar, U., Ramsay, S., et al. (1996). Noun and verb retrieval by normal subjects studies with PET. Brain, 119, 159–179.CrossRefGoogle ScholarPubMed
Yetkin, O., Yetkin, F. Z., Haughton, V. M., & Cox, R. W. (1996). Use of functional MR to map language in multilingual volunteers. American Journal of Neuroradiology, 17, 473–477.Google Scholar
Abutalebi, J., & Green, D. (2007). Bilingual language production: The neurocognition of language representation and control. Journal of Neurolinguistics, 20, 242–275.CrossRefGoogle Scholar
Albert, M., & Obler, L. K. (1978). The bilingual brain. New York: Academic Press.Google Scholar
Balaguer, R. D., Sebastián-Gallés, N., Diaz, B., & Rodriguez-Fornells, A. (2005). Morphological processing in early bilinguals: An ERP study of regular and irregular verb processing. Cognitive Brain Research, 25, 312–327.CrossRefGoogle Scholar
Birdsong, D. (2006). Age and second language acquisition and processing: A selective overview. In Gullberg, M. and Indefrey, P. (Eds.), The cognitive neuroscience of second language acquisition (pp. 9–49). Malden, MA: Blackwell.Google Scholar
Bookheimer, S. (2002). Functional MRI of language: New approaches to understanding the cortical organization of semantic processing. Annual Review of Neuroscience, 25, 151–188.Google Scholar
Briellmann, R. S., Saling, M. M., Connell, A. B., Waites, A. B., Abbott, D. F., & Jackson, G. D. (2004). A high-field functional MRI study of quadri-lingual subjects. Brain and Language, 89, 531–542.Google Scholar
Calabrese, P., Neufeld, H., Falk, A., Markowitsch, H. J., Muller, C., Heuser, L., et al. (2001). Word generation in bilinguals: fMRI study with implications for language and memory processes. Fortschritte der Neurologie Psychiatrie, 69, 42–49.Google Scholar
Carter, C. S., Braver, T. S., Barch, D. M., Botvinick, M. M., Noll, D., & Cohen, J. D. (1998). Anterior cingulate cortex, error detection, and the online monitoring of performance. Science, 280, 747–749.CrossRefGoogle ScholarPubMed
Chee, M. W. L., Caplan, D., Soon, C. S., Sriram, N., Tan, E. W. L., Thiel, T., et al. (1999). Processing of visually presented sentences in Mandarin and English studied with fMRI. Neuron, 23, 127–137.Google Scholar
Chee, M. W. L., Hon, N., Lee, H. L., & Soon, C. S. (2001). Relative language proficiency modulates BOLD signal change when bilinguals perform semantic judgments. NeuroImage, 13, 1155–1163.CrossRefGoogle ScholarPubMed
Chee, M. W. L., Weekes, B., Lee, K. M., Soon, C. S., Schreiber, A., Hoon, J. J., et al. (2000). Overlap and dissociation of semantic processing of Chinese characters, English words, and pictures: Evidence from fMRI. NeuroImage, 12, 392–403.CrossRefGoogle ScholarPubMed
Clahsen, H., & Felser, C. (2006). How native-like is non-native language processing? Trends in Cognitive Sciences, 10, 564–570.Google Scholar
Coggins, P. E., Kennedy, T. J., & Armstrong, T. A. (2004). Bilingual corpus callosum variability. Brain and Language, 89, 69–75.CrossRefGoogle ScholarPubMed
Colombo, J. (1982). The critical period concept: Research, methodology, and theoretical issues. Psychological Bulletin, 91, 260–275.Google Scholar
Crosson, B., Benefield, H., Cato, M. A., Sadek, J. R., Moore, A. B., Wierenga, C. E., et al. (2003). Left and right basal ganglia and frontal activity during language generation: Contributions to lexical, semantic, and phonological processes. Journal of the International Neuropsychological Society, 9, 1061–1077.Google Scholar
Curtis, C. E., & D'Esposito, M. (2003). Persistent activity in the prefrontal cortex during working memory. Trends in Cognitive Sciences, 7, 415–423.Google Scholar
De Bleser, R., Dupont, P., Postler, J., Bormans, G., Speelman, D., Mortelmans, L., et al. (2003). The organisation of the bilingual lexicon: A PET study. Journal of Neurolinguistics, 16, 439–456.Google Scholar
De Bot, K. (2008). The imaging of what in the multilingual mind? Second Language Research, 24, 111–133.Google Scholar
Dehaene, S., Dupoux, E., Mehler, J., Cohen, L., Paulesu, E., Perani, D., et al. (1997). Anatomical variability in the cortical representation of first and second language. NeuroReport, 8, 3809–3815.Google Scholar
Dufour, R., & Kroll, J. F. (1995). Matching words to concepts in 2 languages: A test of the concept mediation model of bilingual representation. Memory and Cognition, 23, 166–180.Google Scholar
Eigsti, I. M., & Schuh, J. M. (2008). Neurobiological underpinnings of language in autism spectrum disorders. Annual Review of Applied Linguistics, 28, this issue.Google Scholar
Ellis, N. C., & Laporte, N. (1997). Contexts of acquisition: Effects of formal instruction and naturalistic exposure on second language acquisition. In de Groot, A. M. B. & Kroll, J. F., Tutorials in bilingualism: Psycholinguistic perspectives (pp. 53–83). Hillsdale, NJ: Erlbaum.Google Scholar
Fabbro, F. (2001). The bilingual brain: Cerebral representation of languages. Brain and Language, 79, 211–222.Google Scholar
Francis, W. F. (2003). Discussion of colloquium panel on recent investigations of the bilingual brain. Presented at the 4th International Symposium on Bilingualism, Tempe, AZ.Google Scholar
Frenck-Mestre, C., Anton, J. L., Roth, M., Vaid, J., & Viallet, F. (2005). Articulation in early and late bilinguals’ two languages: Evidence from functional magnetic resonance imaging. NeuroReport, 16, 761–765.Google Scholar
Friederici, A. D., Seinhauer, K., & Pfeiffer, E. (2001). Brain signatures of artificial language processing: Evidence challenging the critical period hypothesis. Proceedings of the National Academy of Sciences, 99, 529–534.Google Scholar
Gaser, C., & Schlaug, G. (2003). Brain structures differ between musicians and non-musicians. Journal of Neuroscience, 23, 9240–9245.CrossRefGoogle ScholarPubMed
Golestani, N., Paus, T., & Zatorre, R. J. (2002). Anatomical correlates of learning novel speech sounds. Neuron, 35, 997–1010.CrossRefGoogle ScholarPubMed
Green, D., Crinion, J., & Price, C. (2006). Convergence, degeneracy and control. In Gullberg, M. & Indefrey, P. (Eds.), The cognitive neuroscience of second language acquisition (pp. 99–125). Malden, MA: Blackwell.Google Scholar
Green, D. (2008). Bilingual aphasia: Adapted language networks and their control. Annual Review of Applied Linguistics, 28, this issue.Google Scholar
Grosjean, F. (1982). Life with two languages. An introduction to bilingualism. Cambridge, MA: Harvard University Press.Google Scholar
Grossman, M., Cooke, A., DeVita, C., Lee, C., Alsop, D., Detre, J., et al. (2003). Grammatical and resource components of sentence processing in Parkinson's disease: An fMRI study. Neurology, 60, 775–781.Google Scholar
Hernandez, A. E., & Meschyan, G. (2006). Executive function is necessary to enhance lexical processing in a less proficient L2: Evidence from fMRI during picture naming. Bilingualism: Language and Cognition, 9, 177–188.Google Scholar
Indefrey, P. (2006). A meta-analysis of hemodynamic studies on first and second language processing: Which suggested differences can we trust and what do they mean? Language Learning, 56, 279–304.Google Scholar
Jeong, H., Sugiura, M., Sassa, Y., Yokoyania, S., Horie, K., Sato, S., et al. (2007). Cross-linguistic influence on brain activation during second language processing: An fMRI study. Bilingualism: Language and Cognition, 10, 175–187.Google Scholar
Klein, D., Milner, B., Zatorre, R. J., Zhao, V., & Nikelski, J. (1999). Cerebral organization in bilinguals: A PET study of Chinese-English verb generation. NeuroReport, 10, 2841–2846.CrossRefGoogle ScholarPubMed
Lamm, C., Bauer, H., Vitouch, O., & Gstattner, R. (1999). Differences in the ability to process a visuo-spatial task are reflected in event-related slow cortical potentials of human subjects. Neuroscience Letters, 269, 137–140.CrossRefGoogle ScholarPubMed
Lee, H., Devlin, J. T., Shakeshaft, C., Stewart, L. H., Brennan, A., Glensman, J., et al. (2007). Anatomical traces of vocabulary acquisition in the adolescent brain. Journal of Neuroscience, 27, 1184–1189.CrossRefGoogle ScholarPubMed
Lenneberg, E. H. (1967). Biological foundations of language. New York: Wiley.CrossRefGoogle Scholar
Lucas, T. H., McKhann, G. M., & Ojemann, G. A. (2004). Functional separation of languages in the bilingual brain: A comparison of electrical stimulation language mapping in 25 bilingual patients and 117 monolingual control patients. Journal of Neurosurgery, 101, 449–457.CrossRefGoogle Scholar
Mahendra, N., Plante, E., Magloire, J., Milman, L., & Trouard, T. P. (2003). FMRI variability and the localization of languages in the bilingual brain. NeuroReport, 14, 1225–1228.CrossRefGoogle ScholarPubMed
Marian, V., & Spivey, M. (2003). Bilingual and monolingual processing of competing lexical items. Applied Psycholinguistics, 24, 173–193.CrossRefGoogle Scholar
Mummery, C. J., Ashburner, J., Scott, S. K., & Wise, R. J. S. (1999). Functional neuroimaging of speech perception in six normal and two aphasic subjects. Journal of the Acoustical Society of America, 106, 449–457.Google Scholar
Neubauer, A. C., Grabner, R. H., Freudenthaler, H. H., Beckmann, J. F., & Guthke, H. (2004). Intelligence and individual differences in becoming neurally efficient. Acta Psychologica, 116, 55–74.Google Scholar
Neville, H., & Bavelier, D. (2002). Human brain plasticity: Evidence from sensory deprivation and altered language experience. Plasticity in the Adult Brain: From Genes to Neurotherapy, 138, 177–188.Google Scholar
Ofan, R. H., & Zohary, E. (2007). Visual cortex activation in bilingual blind individuals during use of native and second language. Cerebral Cortex, 17, 1249–1259.CrossRefGoogle ScholarPubMed
Pallier, C., Dehaene, S., Poline, J. B., LeBihan, D., Argenti, A. M., Dupoux, E., et al. (2003). Brain imaging of language plasticity in adopted adults: Can a second language replace the first? Cerebral Cortex, 13, 155–161Google Scholar
Paradis, M. (1994). Neurolinguistic aspects of implicit and explicit memory: Implications for bilingualism and SLA. In Ellis, N. (Ed.), Implicit and explicit language learning (pp. 393–419). London: Academic Press.Google Scholar
Paradis, M. (2004). A neurolinguistic theory of bilingualism. Amsterdam, Philadelphia: John Benjamins.Google Scholar
Parks, R. W., Loewenstein, D. A., Dodrill, K. L., Barker, W. W., Yoshii, F., Chang, J. Y., et al. (1988). Cerebral metabolic effects of a verbal fluency test: A PET scan study. Journal of Clinical and Experimental Neuropsychology, 10, 565–575.Google Scholar
Penfield, W., & Roberts, L. (1959). Speech and brain mechanisms. Princeton, NJ: Princeton University Press.Google Scholar
Perani, D., & Abutalebi, J. (2005). The neural basis of first and second language processing. Current Opinion in Neurobiology, 15, 202–206.Google Scholar
Perani, D., Abutalebi, J., Paulesu, E., Brambati, S., Scifo, P., Cappa, S. F., et al. (2003). The role of age of acquisition and language usage in early, high-proficient bilinguals: An fMRI study during verbal fluency. Human Brain Mapping, 19, 170–182.CrossRefGoogle ScholarPubMed
Perani, D., Dehaene, S., Grassi, F., Cohen, L., Cappa, S. F., Dupoux, E., et al. (1996). Brain processing of native and foreign languages. NeuroReport, 7, 2439–2444.CrossRefGoogle ScholarPubMed
Perani, D., Paulesu, E., Galles, N. S., Dupoux, E., Dehaene, S., Bettinardi, V., et al. (1998). The bilingual brain: Proficiency and age of acquisition of the second language. Brain, 121, 1841–1852.CrossRefGoogle ScholarPubMed
Price, C. J. (2000). The anatomy of language: Contributions from functional neuroimaging. Journal of Anatomy, 197, 335–359.CrossRefGoogle ScholarPubMed
Price, C. J., Moore, C. J., & Frackowiak, R. S. J. (1996). The effect of varying stimulus rate and duration on brain activity during reading. NeuroImage, 3, 40–52.CrossRefGoogle ScholarPubMed
Pu, Y. L., Liu, H. L., Spinks, J. A., Mahankali, S., Xiong, J. H., Feng, C. M., et al. (2001). Cerebral hemodynamic response in Chinese (first) and English (second) language processing revealed by event-related functional MRI. Magnetic Resonance Imaging, 19, 643–647.Google Scholar
Reiterer, S., Hemmelmann, C., Rappelsberger, P., & Berger, M. L. (2005). Characteristic functional networks in high- versus low-proficiency second language speakers detected also during native language processing: An explorative EEG coherence study in 6 frequency bands. Cognitive Brain Research, 25, 566–578.CrossRefGoogle ScholarPubMed
Rodriguez-Fornells, A., Balaguer, R. D., & Munte, T. F. (2006). Executive control in bilingual language processing. Language Learning, 56, 133–190.Google Scholar
Schreuder, R., & Weltens, B. (1993). The bilingual lexicon. Amsterdam: John Benjamins.Google Scholar
Segalowitz, N., & Hulstijn, J. (2005). Automaticity in bilingualism and second language learning. In Kroll, J. F. & de Groot, A. B. B. (Eds.), Handbook of bilingualism: Psycholinguistic approaches (pp. 371–388). New York: Oxford University Press.Google Scholar
Stowe, L. A., Haverkort, M., & Zwarts, F. (2005). Rethinking the neurological basis of language. Lingua, 115, 997–1042.CrossRefGoogle Scholar
Tan, L. H., Spinks, J. A., Feng, C. M., Siok, W. T., Perfetti, C. A., Xiong, J. H., et al. (2003). Neural systems of second language reading are shaped by native language. Human Brain Mapping, 18, 158–166.CrossRefGoogle ScholarPubMed
Tatsuno, Y., & Sakai, K. L. (2005). Language-related activations in the left prefrontal regions are differentially modulated by age, proficiency, and task demands. Journal of Neuroscience, 25, 1637–1644.Google Scholar
Thompson-Schill, S. L., D'Esposito, M., Aguirre, G. K., & Farah, M. J. (1997). Role of left inferior prefrontal cortex in retrieval of semantic knowledge: A reevaluation. Proceedings of the National Academy of Sciences, 94, 14792–14797.CrossRefGoogle ScholarPubMed
Urbanik, A., Binder, M., Sobiecka, B., & Kozub, J. (2001). FMRI study of sentence generation by early bilinguals differing in proficiency level. Rivista di Neuroradiologia, 14, 11–16.Google Scholar
Vingerhoets, G., Van Borsel, J., Tesink, C., Van Den Noort, M., Deblaere, K., Seurinck, R., et al. (2003). Multilingualism: An fMRI study. NeuroImage, 20, 2181–2196.Google Scholar
Warburton, E., Wise, R. J. S., Price, C. J., Weiller, C., Hadar, U., Ramsay, S., et al. (1996). Noun and verb retrieval by normal subjects studies with PET. Brain, 119, 159–179.CrossRefGoogle ScholarPubMed
Yetkin, O., Yetkin, F. Z., Haughton, V. M., & Cox, R. W. (1996). Use of functional MR to map language in multilingual volunteers. American Journal of Neuroradiology, 17, 473–477.Google Scholar