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Our Team

Principal Investigator

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      Dr. Mehdi Bakhtiar

      Lab Director; Assistant Professor 

Dr. Mehdi Bakhtiar is an Assistant Professor in the Human Communication, Development and Information Sciences Unit at The University of Hong Kong Faculty of Education. He received an MSc degree in Speech Therapy from Tehran University of Medical Sciences and worked as a clinician for a few years before pursuing his PhD in Cognitive Neuroscience of Language at The University of Hong Kong. His main research interests are related to the underlying nature of speech disorders in people with stuttering and other neurogenic communication disorders. Mehdi studies the neurocognitive, linguistic and sensory-motor aspects of stuttering and other motor speech disorders. He is also interested in the application of non-invasive brain stimulation methods (e.g., tDCS, TMS) as an add-on treatment for people with neurogenic communication disorders. 

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Research Expertise and Interests:

  • Stuttering and Fluency Disorders

  • Neurogenic Communication disorders 

  • Neuromodulation in Speech and language Disorders 

  • Development of Speech and Language assessment tests

 

Selected Research Outputs:

  • Shao, J. Bakhtiar, M., & Zhang, C. (2022). Impaired categorical perception of speech sounds under the backward masking condition in adults who stutter. Journal of Speech, Language, and Hearing Research.     

  • Momenian, M., Lau, K. Y. D., & Bakhtiar, M. (2022). Developing psycholinguistic norms for action pictures in Cantonese. Applied Neuropsychology: Adult, 1-8.

  • Bakhtiar, M., Wong, M. N., Tsui, E. K. Y., & McNeil, M. R. (2020). Development of the English Listening and Reading Computerized Revised Token Test Into Cantonese: Validity, Reliability, and Sensitivity/Specificity in People With Aphasia and Healthy Controls. Journal of Speech, Language, and Hearing Research, 63, 3743–3759. 

  • Bakhtiar, M., Zhang, C., & Ki, S. S. (2019). Impaired processing speed in categorical perception: Speech perception of children who stutter. PloS one, 14(4), e0216124.

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Curriculum Vitae:

Click Here

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Links:

Departmental Page: https://web.edu.hku.hk/faculty-academics/mbakht

ResearchGate: https://www.researchgate.net/profile/Mehdi-Bakhtiar-2

Google Scholar: https://scholar.google.com/citations?user=YNlRwdoAAAAJ

Loop: https://loop.frontiersin.org/people/155397/overview

ORCiD: https://orcid.org/0000-0001-6088-3106

Lab Member

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      Mr. Chester Y. N. Cheung 

Chester is a PhD student in the Human Communication, Development and Information Sciences Unit at The University of Hong Kong Faculty of Education. He is also a registered speech therapist in Hong Kong who possesses a Master degree in speech language pathology and a Bachelor degree in psychology. As a speech therapist, Chester worked in local NGO, hospital, and elderly homes while he focused his clinical expertise in adult’s communication and swallowing disorders. As a researcher, Chester endeavours in the fields of aphasiology and neurotherapeutics. Currently, he is pioneering in the development of EEG-guided individualized Transcranial Alternating Current Stimulation (tACS) therapy for patients with aphasia. 

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Research Expertise and Interests:

  • Aphasia and PPA

  • Neuroimaging (EEG) and Neuromodulation (tACS, tDCS, TMS)

  • Discourse analysis

 

Supervisors:​

  • Primary supervisor: Dr. Anthony P. H. Kong

  • Co-supervisor: Dr. Mehdi Bakhtiar

 

Curriculum Vitae:

Available upon request

Undergraduate Dissertation Students 

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Wong Sin Yi, Yolanda (2021/22)

Program Enrolled: BSc (Speech and Hearing Sciences)
Year of Study: Year

                  

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Woo Sin Tung Chloe (2021/22)

Program Enrolled: BSc (Speech and Hearing Sciences)
Year of Study: Year 5 

                  

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Mui Lok Ching Melody (2022/23)

Program Enrolled: BSc (Speech and Hearing Sciences)
Year of Study: Year 5 

                  

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Cheung Wang Mei Vera (2022/23)

Program Enrolled: BSc (Speech and Hearing Sciences)
Year of Study: Year 5 

                  

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Lui Yat Shuen, Claris (2022/23)

Program Enrolled: BSc (Speech and Hearing Sciences)
Year of Study: Year 5 

                  

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Chan Aidan (Fall 2022)

Program Enrolled: BSocSc Psychology & Neuroscience
Year of Study: Year 3 

                  

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Lo Chi Yuen, Liam (Fall 2022)

Program Enrolled: BSc (Speech and Hearing Sciences)
Year of Study: Year 2  

                  

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Yung Wing Yu, Ella (Fall 2022)

Program Enrolled: BSc (Speech-Language Pathology)
Year of Study: Year 1  

                  

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Chan Aidan (Spring 2023)

Program Enrolled: BSocSc Psychology & Neuroscience
Year of Study: Year 3 


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oncentration: Applied Neuroscience in Speech and Language Disorders  
Mentor: Ms. Tegan Yeung   
                

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Lo Chi Yuen, Liam (Spring 2023)

Program Enrolled: BSc (Speech and Hearing Sciences)
Year of Study: Year 2  

                  
​Concentration: Assessment and Evaluation in Speech-Language Pathology 
Mentor: Ms. Tegan Yeung
                  

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Lee Hoi In, Lesley (Spring 2023)

Program Enrolled: BSc (Speech and Hearing Sciences)
Year of Study: Year 4  


Concentration: Qualitative Research in Communication Sciences and Disorders
Mentor: Ms. Tegan Yeung        
                  
                  

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Ms. Tegan Yeung 
 

​Lab Projects Involved:

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  • The Effects of Brain Stimulation on the Enhancement of Speech Fluency in Adults Who Stutter

  • AI Pathologist for Stuttering (c/ Nanyang Technological University)

  • EEG-tES-Based Treatment in Post-stroke Aphasia (c/ HKU Complex Neural Signals Decoding Lab)

  • Executive Function in Stutterers (c/ Indiana University Bloomington, Thomas More University Belgium)

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