Oct 6, 2026 · 50 min
Inherited dementia tests identity, family and hope
Special Episode: Robert Kolker & The Vanishing Family
The conversation shows how inherited frontotemporal dementia turns genetic uncertainty, caregiving and early detection into deeply personal stakes.
- 1Frontotemporal dementia can alter personality and relationships before families recognize the changes as neurological disease.
- 2A 50/50 inheritance risk creates a painful choice between genetic knowledge and the psychological burden of not knowing.
- 3Emerging treatments and earlier detection offer cautious hope for preventing symptoms in people carrying disease-linked mutations.
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Barb’s decision to avoid genetic testing captures the psychological torture of living with a 50/50 risk of developing inherited FTD.
The brief
Erin Welsh interviews Robert Kolker about The Vanishing Family, his account of a family confronting inherited, early-onset frontotemporal dementia and its effects on identity and relationships.
The family’s story shows why FTD is often mistaken for personal failure: behavioral changes can precede diagnosis, while relatives debate whether they reflect character, family traits or disease.
Learning about a 50/50 inheritance risk creates a brutal choice between testing and uncertainty, especially for relatives who fear losing memory, identity and continuity of self.
Kolker traces dementia’s shift from spiritual explanations to neurological accounts, including how Phineas Gage helped reshape ideas about the brain’s role in personality.
The episode also examines caregiving, research priorities and why FTD remains poorly recognized, despite families’ hopes for tau-targeting drugs and preventive treatment.
Its cautious optimism rests on earlier detection: therapies given before symptoms appear could eventually change what inherited dementia means for at-risk families.
Books & mentions
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