Which neurotransmitter is commonly linked to schizophrenia etiology?

Dopamine is commonly linked to the etiology of schizophrenia, making it the correct answer. Research in the field of psychology and neuroscience has indicated that abnormalities in dopamine pathways contribute significantly to the symptoms of schizophrenia. The dopamine hypothesis suggests that overactivity of dopamine transmission, particularly in certain brain regions, is associated with positive symptoms of schizophrenia, such as hallucinations and delusions.

Additionally, antipsychotic medications, which are often used to treat schizophrenia, primarily work by blocking dopamine receptors, further supporting the role of dopamine in the disorder. While other neurotransmitters like serotonin and glutamate have also been implicated in schizophrenia and may influence its symptoms or treatment response, dopamine remains the most recognized neurotransmitter in the etiology of the disorder.