Genetic explanation of unipolar depression

Unipolar Depression

A type of depression characterized by a persistent feeling of sadness without any manic episodes.

Genetic predisposition

The inherited tendency to develop a condition such as unipolar depression based on genetic factors.

Monozygotic twins

Identical twins that share 100% of their genes.

Dizygotic twins

Fraternal twins that share approximately 50% of their genes.

Diathesis-stress model

A psychological theory that explains how genetic predisposition and environmental stressor interact to trigger depression.

Serotonin transporter gene

A gene that influences the transport of serotonin in the brain, linked to reactions to stress and the development of depression.

Deterministic explanation

An explanation that suggests a fixed outcome based on genetic composition, implying that individuals have no control over their condition.

Reductionist explanation

An approach that oversimplifies a complex issue by focusing solely on genetic factors and neglecting other influences such as environmental or social factors.

Strength of genetic explanation

Reduces stigma surrounding mental health by suggesting that depression may be genetically inherited.

Weakness of genetic explanation

Oversimplifies the complexity of depression by attributing it solely to genetic causes without considering other influencing factors.