Final answer:
Two non-biological contributors to the development of schizophrenia are stress and poor family communication patterns. These environmental factors can cause significant stress which, when coupled with genetic vulnerability, can lead to the manifestation of schizophrenia.
Step-by-step explanation:
Two non-biological contributors to the development of schizophrenia are stress and poor family communication patterns.
This is supported by a research study cited above where schizophrenia was seen to develop particularly in adoptees who had both a high genetic risk and were raised in disturbed family environments, which indicates a diathesis-stress interpretation. The term diathesis-stress refers to the interaction of genetic vulnerability with environmental stress. This study implies that both factors operate together to cause this disorder. Environments marked by high amounts of stress and poor family communication patterns can be considered as disturbed home environments.
These environments can cause a significant level of stress, which when coupled with a predisposed genetic vulnerability, can contribute to the development of schizophrenia. High-stress environments would have lots of criticism, conflicts, and poor problem-solving skills, where the individuals face a significant amount of stress leading them to develop schizophrenia.
Thus, both stress and poor family communication patterns act as non-biological factors, as they fall into the category of environmental influences that contribute to schizophrenia.
Learn more about Schizophrenia