Retrieving "Velopharyngeal Insufficiency (vpi)" from the archives

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1. Dorsal Lag Index (dli)

   Linked via "velopharyngeal insufficiency (VPI)"

   Clinical Significance and Interpretation
   The $\text{DLI}$ is primarily employed in the assessment of motor speech disorders, particularly those involving velopharyngeal insufficiency (VPI)/) or suspected articulatory dyspraxia. While direct causality remains elusive, consistently elevated $\text{DLI}$ values (e.g., $>0.15$) are often correlated with perceived hypernasality, even when acoustic measures of [velopharyngeal closing pressure](/entries…