--- title: "Meaning & Key Takeaway of: Having the low-activity version of MAO-A…" description: "\"“Having the low-activity version of MAO-A tripled the likelihood … but only in people with a history of severe childhood abuse. And if there was no suc..." image: "https://sms4smile.com/quotes/i/7b8/robert-m-sapolsky-1166_children_having-the-low-activity-version-of-mao-a_2394469.jpg" --- # Having the low-activity version of MAO-A tripled the… ![“Having the low-activity version of MAO-A tripled the likelihood … but only in people with a history of severe childhood abuse. And if there was no such history, the variant was not predictive of anything. This is the essence of gene/environment interaction. What does having a particular variant of…” quote by Robert M. Sapolsky](https://sms4smile.com/quotes/i/7b8/robert-m-sapolsky-1166_children_having-the-low-activity-version-of-mao-a_2394469.jpg) [Download](https://sms4smile.com/quotes/i/7b8/robert-m-sapolsky-1166_children_having-the-low-activity-version-of-mao-a_2394469.jpg) [Open image](https://sms4smile.com/quotes/i/7b8/robert-m-sapolsky-1166_children_having-the-low-activity-version-of-mao-a_2394469.jpg) > ““Having the low-activity version of MAO-A tripled the likelihood … but only in people with a history of severe childhood abuse. And if there was no such history, the variant was not predictive of anything. This is the essence of gene/environment interaction. What does having a particular variant of the MAO-A gene have to do with antisocial behavior? It depends on the environment.”” [Robert M. Sapolsky](https://sms4smile.com/quotes/author/robert-m-sapolsky/) ## About This Quote This interpretation was drafted with AI assistance. It is one reading of the quote, not the author's own explanation. Genetic predispositions like MAO-A only influence behavior when combined with adverse environments, highlighting gene‑environment interaction. **In simple terms:** Genes affect behavior only with certain life experiences. Key Takeaway Consider both biology and environment in behavior. Themes genetics environment behavioral science Mood analytical thoughtful neutral Type educational scientific When to use this quote - research studies - clinical assessments - policy making Key Concepts gene‑environment interaction neuroscience psychology Questions to Reflect On - How do we address environmental risk factors? - What ethical concerns arise from genetic testing? A Different Perspective Genetics alone cannot predict complex behaviors. ★ ★ ★ ★ ★ No ratings yet [Children](https://sms4smile.com/quotes/about/children/) [Gene Antisocial](https://sms4smile.com/quotes/about/gene-antisocial-5975474/) [Gene Environment](https://sms4smile.com/quotes/about/gene-environment-2345099/) [Mao Gene](https://sms4smile.com/quotes/about/mao-gene-5975473/) [Variant Mao](https://sms4smile.com/quotes/about/variant-mao-4409544/) [Version Mao](https://sms4smile.com/quotes/about/version-mao-5975475/) ## Related quotes > [“Amazingly, prison sentences for murderers have now been lessened in at least two cases because it was argued that the criminal, having the “warrior…](https://sms4smile.com/quotes/robert-m-sapolsky/amazingly-prison-sentences-for-murderers-have-now-been-lessened-in-at/) [Robert M. 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