HCS Research Seminar – Dr Arpita Bose – Thursday 10th May 2018

HCS Research Seminar – THURSDAY 10th May2018

Speaker:    Dr Arpita Bose, School of Psychology and Clinical Language Sciences, University of Reading

Title:    Language Production in Bilingual Aphasia:  Data from South-Asian languages

Venue:     Elmfield Lecture Theatre 1, Elmfield Building, Northumberland Road

Time:    13:00–14:30

Half the world’s population is bilingual. Bilingual aphasia is defined as the loss of one or both languages in bilingual individuals resulting from left hemisphere damage. An increasing bi/multilingual population alongside neurological disorders being the leading cause of long-term disability increases the importance of studying bilingual aphasia, its nature, assessment and rehabilitation (Kiran, 2017).

In this talk, I will present data from bilingual aphasia from language production tasks in South-Asian language combinations (e.g., Bengali-English, Hind-English, Kannada-English). Although a large proportion of the global populace speak these languages, in the neuropsychology and aphasia literature, bilingual aphasia investigation in these languages remains under-represented (Beveridge & Bak, 2011).

I will present data on three themes from my research.
First, using simple word production tasks and paradigms (e.g., verbal fluency, blocked cyclic naming), I explore the interaction of lexical and executive control processes to identify the nature of word production impairments in bilingual aphasia.

Second, exploiting the linguistic similarities/differences between the languages (e.g., cognate words, words with similar meaning and forms vs. non-cognate words, words with similar meaning but different forms), I investigate how the manifestation of impairments are influenced by structural differences, language proficiency and executive control processes.

Third, moving beyond single-word production, I present code-switching data from narrative production, to explore the type and frequency of code-switching in bilingual aphasia and its implications for understanding grammatical class deficit in bilingual aphasia. These lines of research stands to inform the nature, assessment and rehabilitation of bilingual aphasia.