Biopsychological perspective on depression generally view that depression could be influenced by both biological and mental factors. We can see it on the example above. Abnormal brain chemistry is the biological factors and not maintaining diet properly is the psychological factor.
The attributions that would represent the above scenario
include external causes and uncontrollability. Attribution is the process by
which entities explain the causes of behavior and events. Attribution theory proposes that the
attributions people make about events and behavior can be classed as either
internal or external.