Final answer:
It is false that cognitive processing deficits can fully explain the cause of schizophrenia; biological factors, genetic risk, and environmental influences also contribute to its development.
Step-by-step explanation:
It is false that deficits in cognitive processing can fully explain the cause of schizophrenia. Schizophrenia involves a complex interplay of genetic and environmental factors. Findings from studies such as Sullivan (2012) suggest that an excitatory/inhibitory imbalance and discoordination between GABAergic and glutamatergic firing might lead to cortical abnormal function, thereby contributing to cognitive deficits. Additionally, a study by Tienari and colleagues in 2004 indicates that adoptees with high genetic risk for schizophrenia were most likely to develop the disorder in disturbed home environments, signifying the interaction between genetic susceptibility and environmental stressors. This underscores the complexity of schizophrenia's etiology, which cannot be reduced to just cognitive processing deficits but includes biological, genetic, and environmental dimensions.