Neuroplasticity and Language Learning: Functional Brain Changes in Uzbek-English Bilingual Students

The neuroplastic consequences of second language acquisition constitute a rapidly expanding domain within cognitive neuroscience, yet the specific functional brain changes associated with learning English among Uzbek-dominant bilingual students remain largely uncharacterized in the empirical literature. The present systematic review and evidence-based synthesis addresses this gap by examining the functional neural correlates of Uzbek-English language learning, with particular focus on the structural divergences between Uzbek — a Turkic, SOV, agglutinative language — and English — an Indo-European, SVO, analytic language — as sources of cross-linguistic interference with distinctive neuroplastic consequences. Drawing on 84 primary neuroimaging studies, 11 meta-analyses, and 6 systematic reviews, the synthesis characterizes a four-stage proficiency-gradient neuroplastic trajectory for Uzbek-English learners, identifies seven recurrent learning difficulty categories traceable to specific neurolinguistic mechanisms, and derives pedagogically actionable recommendations for English language instruction in Uzbek educational contexts. Findings indicate that the typological distance between Uzbek and English generates particularly demanding inhibitory control requirements during morphosyntactic and phonological processing, with predicted hyperactivation of the left inferior frontal gyrus, anterior cingulate cortex, and right prefrontal compensatory regions at early and intermediate proficiency stages. The Adaptive Control Hypothesis, the Declarative/Procedural Model, and the Revised Hierarchical Model are evaluated for their explanatory adequacy and identified limitations with respect to this underrepresented bilingual population. Theoretical extensions and a prioritized empirical research agenda are proposed.