Inclusion Criteria:  Postnatal age < or = 28 days; cEEG monitoring at least 24hours monitoring; Suspected seizures； Abnormal movement; Brain infarction； Risk of Intracranial hemorrhage; Abnormality of brain MRI or ultrasound; Hypoxic-ischemic encephalopathy or suspected Hypoxic-ischemic encephalopathy; Central nervous system (CNS) or systemic infections; Suspected genetic diseases or Positive genetic diagnoses;  Exclusion Criteria:  The neonates with head scalp defect, scalp hematoma, edema and other contraindications which are not suitable for cEEG monitoring during hospitalization.