Final answer:
Schizophrenia and autism are complex neurodevelopmental disorders not caused by childhood experiences or vaccinations. Schizophrenia involves genetic and environmental factors and neurotransmitter issues, while the causes of autism are largely genetic and not fully understood.
Step-by-step explanation:
The question addresses the causes of schizophrenia and autism, two distinct neurodevelopmental disorders. In the context of causation, we know that schizophrenia and autism are not caused by bad experiences during childhood or by vaccinations. Regarding schizophrenia, it involves a complex interplay of genetic and environmental factors, malfunctioning neurons, and issues with neurotransmitters such as dopamine and glutamate. Proper treatment usually entails antipsychotic medications. On the other hand, autism spectrum disorders (ASD) have causes that are largely unknown, with genetic variations contributing to the condition. Large-scale studies have debunked the myth that vaccinations cause ASD, which had originated from a retracted paper with falsified data.
There is clear evidence that both conditions are not the results of childhood experiences or vaccinations. While environmental factors can influence the likelihood of developing schizophrenia alongside genetic predispositions, there is no credible evidence linking either condition to experiences in childhood such as trauma or bad experiences or to routine childhood vaccinations.