Task: Answer Verification
Input (English): Question: Do freezing of gait subtypes have different cognitive correlates in Parkinson 's disease?
Answer: Aside from pharmacological differences, unresponsive FOG is associated with executive and visuospatial dysfunction implicating frontostriatal pathways while responsive FOG is associated with hallucinations suggesting involvement of posterior cortical regions. Further study and treatment of FOG should include appropriate subtype classification.
Output (English): yes