Subjects with CP (Caregiver questionnaire only):  Inclusion Criteria:  Individual 8+ years of age Diagnosis of cerebral palsy  Exclusion Criteria:  -None  Subjects with CP: Core Study (Survey):  Inclusion Criteria:  Individual 8+ years of age Adult subject able to indicate understanding and affirmative consent OR Adult/child subject unable to indicate understanding and affirmative consent AND subject assents AND LAR consents Diagnosis of cerebral palsy CFCS I-III and able to respond unambiguously to at least 65 multiple-choice items  Exclusion Criteria:  -None  Control subjects: Core Study (Survey):  Inclusion Criteria:  Individual 8+ years of age Adult subject able to indicate understanding and affirmative consent OR Adult/child subject unable to indicate understanding and affirmative consent AND subject assents AND LAR consents  Exclusion Criteria:  -Clinically-significant neurologic or developmental diagnosis  Subjects with CP undergoing MRI:  Inclusion Criteria:  Individual 8+ years of age Adult subject able to indicate understanding and affirmative consent OR Adult subject unable to indicate understanding and affirmative consent AND subject assents AND LAR consents Diagnosis of cerebral palsy Clinical imaging demonstrating isolated periventricular white matter injury Clinical judgment that all neurologic symptoms are attributable to non-progressive periventricular white matter injury Able to lie still in scanner for 1.5 hours in at most 2 sessions and be able to have MRI  Exclusion Criteria:  -None  Control subjects undergoing MRI:  Inclusion Criteria:  Individual 8+ years of age Adult subject able to indicate understanding and affirmative consent Able to lie still in scanner for 1.5 hours and be able to have MRI  Exclusion Criteria:  -Clinically-significant neurologic or developmental diagnosis