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Professor LAW, Sam Po

Professor LAW, Sam Po



Academic Unit of Human Communication, Development, and Information Sciences


B.A. (Boston College), M.A. (Boston University), Ph.D. (Boston University)


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(852) 2241 5981


Room 804B, Meng Wah Complex

Research Expertise

  • Brain and Cognition
  • Communication Sciences and Disorders
  • Language Processing and Dyslexia

Research Interests:
Chinese language disorders include acquired dyslexia and dysgraphia, lexical and sentence processing deficits; Language rehabilitation of individuals with aphasia

  • Erasmus Mundus Visiting Scholar, Joint European Masters Programme in Clinical Linguistics, Potsdam, Germany, 2007.
  1. Principal Investigator of a GRF grant entitled “The role of similarities between L1 and L2 with respect to written word form and orthography-phonology correspondence in L2 visual word processing” (2015-17, $630,714) (Co-I: Dr. Y.-N. Yum)
  2. Principal Investigator of a Seed Grant for International and Cross-Border Collaborative Research Funds entitled “Toward a Multi-Modal and Multi-Level Analysis of Chinese-English Bilingual Aphasic Discourse” (August 2016 – March 2018, $29,881) (Co-I: Dr. Anthony P.H. Kong)
  3. Principal Investigator of a Seed Fund for Basic Research entitled “The role of cognitive stimulation in language rehabilitation of Cantonese-speaking persons with aphasia (PWA)” (May 2017 – April 2019) (Co-I: Ms Winsy Wong)
  4. Principal Investigator of subcontract agreement and co-investigator of a grant funded by the National Institutes of Health (NIH) entitled “Toward a multi-modal and multi-level analysis of Chinese aphasic discourse” (PI: Dr. Anthony Kong, University of Central Florida; Agency contract number: 1 RO1 RDC010398, Project/Dept number at UCF: 18706003, HKU account number: 21009173.14304.10010.420.01, July 2010 – May 2016, USD$414,079 (HK site))
  5. Co-investigator of a GRF grant entitled “Capturing the heterogeneity of developmental dyslexia in Chinese through behavioural profiles and event-related potentials (ERP) measures” (2015-16, $1,102,748) (PI: Dr. I-Fan Su; Co-I: Dr. D. Lau)
  6. Co-investigator of a project entitled “The Hong Kong stroke consortium” funded by the Strategic Research Theme on Neuroscience (PI: Dr. Gary Lau, Department of Medicine, Li Ka Shing Faculty of Medicine; July 2014-June 2017)

Law, S.-P.*, Fung, R., & Kung, C. (2013). An ERP study of good production vis-à-vis poor perception of tones in Cantonese: Implications for top-down speech processing. PLoS ONE, 8(1): e54396. doi:10.1371/journal.pone.0054396


Ng, L. M.-W., Bridges, S., Law, S.-P., & Whitehill, T. (2014). Designing, Implementing and Evaluating an Online Problem-Based Learning (PBL) Environment - A Pilot Study. Clinical Linguistics and Phonetics, 28, 117-130. doi: 10.3109/02699206.2013.807879


Yu, X., Bi, Y., Han, Z., & Law, S.-P.* (2013). An fMRI study of grammatical morpheme processing associated with nouns and verbs in Chinese. PLoS One, 8(10): e74952. doi:10.1371/journal.pone.0074952


Yum, Y.-N., Law, S.-P.*, Su, I.-F., Lau, D., & Mo, J. (2014). An ERP study of effects of regularity and consistency in delayed naming and lexicality judgment in a logographic writing system. Frontiers in Psychology, Language Sciences, 5, article 315. doi: 10.3389/fpsyg.2014.00315


Ou, J., Law, S.-P., Fung, R., & Ho, S. (2014). The role of individual differences in cognitive ability in tone processing in Cantonese: Preliminary findings. Proceedings of the 4th International Symposium of Tonal Aspects of Languages.


Kong, A. P.-H., Law, S.-P., Kwan, C. C.-Y., Lai, C., & Lam, V. (2015). Database of speech and gesture (DOSAGE): A database of forms and functions of gesture use during verbal communication. Journal of Nonverbal Behavior, 39, 93-111. doi:10.1007/s10919-014-0200-6


Law, S.-P.*, Kong, A. P.-H., Lai, L. W.-S., & Lai, C. (2015). Effects of context and word class on lexical retrieval in Chinese speakers with anomic aphasia. Aphasiology, 29, 81-100. doi: 10.1080/02687038.2014.951598


Ou, J., Law, S.-P.*, & Fung, R. (2015). Relationship between individual differences in speech processing and cognitive functions. Psychonomic Bulletin & Review, 22, 1725-1732. doi: 10.3758/s13423-015-0839-y


Kong, A. P.-H., Law, S.-P., Wat, W. K.-C., & Lai, C. (2015). Co-verbal gestures among speakers with aphasia: Influence of aphasia severity, linguistic and semantic skills, and hemiplegia on gesture employment in oral discourse. Journal of Communication Disorders, 56, 88-102.


Yum, Y. N., Su, I.-F., & Law, S.-P. (2015). Early effects of radical position legality in Chinese: An ERP study. Scientific Studies of Reading, 19, 456-467, DOI: 10.1080/10888438.2015.1081204


Law, S.-P.*, & Su, I.-F. (2015). Acquired dyslexia and dysgraphia in Chinese. In R. Sybesma, W. Behr, Z. Handel, C.-T. J. Huang, & J. Myers (Eds.), Encyclopedia of Chinese Language and Linguistics. Leiden, Netherlands: Brill Publishers.


Su, I.-F., & Law, S.-P.* (2015). Neural correlates of character recognition and phonological access. In R. Sybesma, W. Behr, Z. Handel, C.-T. J. Huang, & J. Myers (Eds.), Encyclopedia of Chinese Language and Linguistics. Leiden, Netherlands: Brill Publishers.


Yum Y. N., Law, S.-P.*, Mo, K. N., Lau, D., Su, I.-F., & Shum, S.K.M. (2016). Electrophysiological evidence of sublexical phonological access in character processing by L2 Chinese learners of L1 alphabetic scripts. Cognitive, Affective, and Behavioral Neuroscience,16, 339-352. DOI 10.3758/s13415-015-0394-z


Ou, J. & Law, S.-P.* (2016). Individual differences in processing pitch contour and rise time in adults: A behavioral and electrophysiologicalstudy of Cantonese tone merging. Journal of Acoustical Society of America, 139, 3226.doi: 10.1121/1.4954252


Ou, J., & Law, S.-P.* (2017). Cognitive basis of individual differences in speech perception, production and representations: the role of domain general attentional switching. Attention, Perception, and Psychophysics,79, 945-963. doi:10.3758/s13414-017-1283-z


Kong, A.P.H., Linnik, A., Law, S.-P., & Shum, W. (2018). Measuring discourse coherence in anomic aphasia using rhetorical structure theory. International Journal of Speech-Language Pathology, 20, 406-421. doi:10.1080/17549507.2017.1293158


Yum, Y.-N., Law, S.-P., Lee, C.-F., & Shum, M. S.-K. (2018). Early event-related potentials differences in orthographic processing of native and non-native Chinese readers. Journal of Research in Reading, 41(3), 403-422. doi:10.1111/1467-9817.12115


Kong, A. P.-H., Law, S.-P., & Chak, G. W.-C. (2017). A comparison of co-verbal gestures employment in oral discourse among speakers with fluent and non-fluent aphasia. Journal of Speech, Language, and Hearing Research, 60, 2031-2046. doi:10.1044/2017_JSLHR-L-16-0093


Lai, C. C.-T., Law, S.-P., & Kong, A. P.-H. (2017). A quantitative study of right dislocation in Cantonese spoken discourse. Language and Speech, 60, 633-642. doi:10.1177/0023830916688028


Law, S.-P.*, Kong, A. P.-H., & Lai, C. (2018). An analysis of topics and vocabulary in Chinese oral narratives by normal speakers and speakers with fluent aphasia. Clinical Linguistics and Phonetics, 32, 88-99. doi:10.1080/02699206.2017.1334092


Law, S.-P.*, Yum, Y.-N., & Cheung, G. W.-L. (2017). Neural correlates of concreteness effect in semantic processing of single Chinese characters using mixed-effects modeling. Journal of Neurolinguistics,44, 223-38. doi:10.1016/j.jneuroling.2017.07.001


Law, S.-P.*, & Kong, A. P.-H. (in press). Chinese and aphasia. In The Routledge Handbook of Applied Chinese Linguistics. C.-R. Huang, Z. Jing-Schmidt, & B. Meisterernst (Eds), Routledge.


Kong, A. P.-H., & Law, S.-P. (2018). Cantonese AphasiaBank: An annotated database of spoken discourse and co-verbal gestures by healthy and language-impaired native Cantonese speakers. Behavior Research Methods.


Kong, A. P.-H., Law, S.-P., & Cheung, C. K-Y. (2018). Investigating the roles of co-verbal gestures in facilitating lexical retrieval for production of connected speech among unimpaired speakers and those with aphasia. Aphasiology.

Professional Societies

  1. 09/2000 - present: member, Academy of Aphasia
  2. 04/2009 - present: member, Cognitive Neuroscience Society
  3. 01/2009 - present: member, Psychonomic Society
  4. member,


Knowledge Exchange Activities

  1. 2018-09-01 to 2019-06-30: 2018/19 KE Impact Project Funding: KE-IP-2018/19-39: New clinical techniques and strategies of language rehabilitation for practitioners and caregivers of people with aphasia (PWA) based on Cantonese AphasiaBank ($99,985), KE Project Grant
  2. 2010-12-02 to 2011-06-30: 2010/11 KE Impact Project Funding: KE-IP-2010/11-7: Understanding and communicating with brain-damaged individuals with language impairment (HK$64,188), KE Project Grant


Invited Lectures & Keynote Speeches

  1. 2014-10-01: Anomalous neural correlates of character recognition in Chinese developmental dyslexia - preliminary findingsThe Third Hong Kong Speech and Hearing Symposium, The Chinese University of Hong Kong
  2. 2014-05-01: Acquired and developmental dyslexia in non-alphabetic scripts: the Chinese caseBIT’s 5th Annual World Congress of Neurotalk-2014.
  3. 2012-10-01: Can sluggish shifting of attention lead to reading difficulties in Chinese?Hong Kong Speech & Hearing Symposium, The Chinese University of Hong Kong
  4. 2012-05-01: Are radicals in Chinese characters position general or position specific?Psychology Departmental Seminar, Department of Psychology, The University of Hong Kong
  5. 2012-01-01: Are dyslexic brains wired differently? Cognitive deficits related to reading Chinese in developmental dyslexiathe Global Conference on Disorders in Auditory Processing, Literacy, Language and Related Sciences, The Hong Kong Institute of Education, Hong Kong
  6. 2011-05-01: Cognitive Deficits in Character Recognition in Chinese Developmental Dyslexia: Data from Event-related Potentials and Time Frequency Analysis.Forum on Strategic Research Themes in Community: Communication Disorders, University of Hong Kong
  7. 2010-12-01: Using EEG-based single case study to understand language disorders.Brown Bag Seminar – Division of Speech and Hearing Sciences, University of Hong Kong
  8. 2010-08-01: Orthographic representation of Chinese characters: data from acquired dyslexia and writing development11th Science of Aphasia Conference, Potsdam, Germany
  9. 2010-08-01: The Locus of Orthographic Facilitation Effect in Spoken Word Production: Evidence from Cantonese ChineseLanguage Engineering Laboratory Seminars, Chinese University of Hong Kong
  10. 2009-11-01: Semantic Radical Processing in Chinese Character Identification: Evidence from ERP studies. (Invited Talk)Language Engineering Laboratory Seminars at the Chinese University of Hong Kong, Hong Kong
  11. 2008-07-01: Age-of-acquisition effects on naming characters in two Cantonese dyslexic individualsXXIX International Congress of Psychology, Berlin, Germany
  12. 2006-04-01: Reading real and pseudo-characters with free-standing and non-free-standing phonetic radicals by Cantonese dyslexic individualsInstitute of Cognitive Neuroscience and Learning, Beijing Normal University and Tian'tan Hospital
  13. 2006-02-01: Treatment for naming disorders in Cantonese aphasic individuals with different underlying impairments.4th World Congress for NeuroRehabilitation, Hong Kong
  14. 2004-08-01: Lexically-mediated direct reading route in Chinese: Evidence from surface dyslexic patientsXXVIII Congress of Psychology, Beijing, China



  1. 2011: Journal editor, The Open Journal of Modern Linguistics
  2. 2009: Member of the Editorial Board, The Open Applied Linguistics Journal
  3. 2008: Language disorders in speakers of Chinese


Community Service

  1. 2018-11-01 to 2019-11-01: Chair, Local Arrangements Committee, Academy of Aphasia
  2. 2018-01-01 to 2021-01-01: board of governor, Academy of Aphasia
  3. 2015-11-01 to 2018-11-01: Member, Membership Committee
  4. 2015-02-01 to 2017-02-01: Member, Standing Review Board, Humanities and Social Sciences Panel, Research Grant Council of Hong Kong
  5. 2011-11-01 to 2015-11-01: Member, Nomination Committee, Academy of Aphasia


Teaching List, Current

  1. 2021 S2, SHSC2035, 2A, Cognition and Language Processing
  2. 2021 S2, SHSC5035, 2A, Advanced Studies II: Inter-professional Practice & Multimodal Communication in Adult Settings
  3. 2021 S2, SHSC5036, 2A, Research in Human Development and Communication Disorders II
  4. 2021 S1, SHSC4032, 1A, Aphasia
  5. 2021 S1, SHSC5034, 1A, Research in Human Development and Communication Disorders I
  6. 2020 S2, SHSC2035, 2A, Cognition and Language Processing
  7. 2020 S1, SHSC4032, 1A, Aphasia
  8. 2020 S1, SHSC5034, 1A, Research in Human Development and Communication Disorders I
  9. 2019 S2, SHSC2035, 2A, Cognition and Language Processing
  10. 2019 S2, SHSM6020, 2A, Research issues and methodology in language
  11. 2019 S1, SHSC4032, 1A, Aphasia
  12. 2018 S2, SHSC2035, 2A, Cognition and Language Processing
  13. 2018 S2, SHSM6020, 2A, Research issues and methodology in language
  14. 2018 S1, SHSC4032, 1A, Aphasia


Supervision of Research Postgraduate Students

  1. 2017 PhD Wong Wing Sze, Aphasiology
  2. 2012 PhD Ou Jinghua: Relationships among individual differences in speech perception, speech production, and cognitive functions : a case study of Cantonese tone merger, Linguistics
  3. 2012 MPhil Lai Choi Ting: A quantitative study of information structure and right dislocation in Cantonese spoken discourse, Cantonese Pragmatics
  4. 2010 PhD Yu Xi: Neural representations of Chinese noun and verb processing at the semantic, lexical form, and morpho-syntactic levels, Language Processing in Chinese
  5. 2010 PhD Lai Wing Sze: The production and perception of English lexical stress by Hong Kong Cantonese learners of English, Speech and Hearing Sciences
  6. 2007 MPhil Lui Hoi Ming: The processing units of writing Chinese characters: a developmental perspective, Study on Literacy Development : The Role of Logographeme in Writing Chinese
  7. 2006 MPhil Yeung Ho Yi Olivia: Are executive functions predictive of aphasia treatment outcomes?: data from an ortho-phonological therapy foranomia in Chinese, Chinese Apnasiology
  8. 2003 PhD Kong Pak Hin: A Cantonese linguistic communication measure for evaluating aphasic narrative production, Cantonese Aphasiology


HKU Committee Appointments

  1. 2016-09-01 to 2018-04-30: Board for Professional Doctorates, An Associate or Assistant Dean of the Graduate School
  2. 2016-08-01 to 2018-04-30: Board of Graduate Studies, Up to two Associate Deans of the Graduate School
  3. 2016-08-01 to 2018-04-30: Postgraduate Education, Policy Board of, Dean and Associate Deans of Graduate School
  4. 2015-03-01 to Present: Faculty of Education, Board of the, The teachers who are members of the Faculty and who are full-time employees of the University
  5. 2006-03-01 to 2015-02-28: Faculty of Education, Board of the, The teachers who are members of the Faculty and who are full-time employees of the University
  6. 2005-09-01 to 2006-02-28: Faculty of Education, Board of the, Lecturers in Faculty
  7. 2004-09-01 to 2005-08-31: Faculty of Education, Board of the, Lecturers in Faculty
  8. 2004-07-01 to 2006-06-30: Discontinuation, Committee on, 1 member from each Faculty (Education) from a panel of three in order of precedence for a period of 2 years, renewable up to a maximum of 4 consecutive years, Education Faculty Board
  9. 2001-09-01 to 2004-08-31: Faculty of Education, Board of the, Lecturers in Faculty
  10. 1998-09-01 to 2001-08-31: Faculty of Education, Board of the, Lecturers in Faculty