Below is an instruction from Human. Write a response.
    ### Instruction:
    What are the symptoms of Microcephaly brain defect spasticity hypernatremia ?
    ### Response:
    What are the signs and symptoms of Microcephaly brain defect spasticity hypernatremia? The Human Phenotype Ontology provides the following list of signs and symptoms for Microcephaly brain defect spasticity hypernatremia. If the information is available, the table below includes how often the symptom is seen in people with this condition.
    