Living abroad changes who you are. Why? The neuroscience behind identity shift

Series "The Neuroscience of Expat Identity" — Part 2/3

Last update 14/04/2026

Source: Sandrine Gelin-Lamrani, Founder and Director at G&L Shift, certified coachs in Barcelona, Spain. Professionnel Coaching 3.0. for conscious leadership, inclusive team management, interpersonal & intercultural communication, international carreers & global mobility

In Part 1, we introduced the "in-between" state expats experience when home no longer feels like home aka Third Culture Identity. Today, we dive deeper: Why does this transformation happen?

The answer lies at the intersection of neuroscience, psychology, and culture.

Your brain when living abroad

When you move abroad, your brain fundamentally reorganizes its neural architecture.

Neuroplasticity (the brain's ability to form new connections throughout life) kicks into overdrive during cultural immersion.

Every time you:

✅ Navigate ambiguous social situations

✅ Decode indirect communication

✅ Suppress your natural reactions to adapt

✅ Learn new language structures

...your brain creates new pathways and prunes old ones.

A landmark study by Maguire et al. (2000) showed that London taxi drivers developed enlarged hippocampi (the brain's navigation center) after years of navigating complex routes. Similarly, multilingual individuals show increased gray matter density in language processing regions.

Expatriation is cognitive navigation on steroids. Living abroad, you're learning new ways of being.

How culture rewires your values

The World Values Survey (tracking attitudes across 100+ countries since 1981) reveals that cultures differ profoundly in what they prioritize:

🔸 Individualism vs. Collectivism: Is the individual or the group the primary unit?

🔸 Power Distance: Should hierarchies be respected or questioned?

🔸 Uncertainty Avoidance: Is ambiguity threatening or energizing?

🔸 Long-term vs. Short-term Orientation: Planning decades ahead or living in the present?

When you live in a culture that prizes different values, your own value system shifts. This is cognitive adaptation.

Research by Erin Meyer (INSEAD) shows that expats often become "cultural chameleons", unconsciously adjusting their communication style, decision-making process, and emotional expression based on context.

Monument vs. Flexible Self

Vivian Vignoles (University of Sussex) identifies two models of selfhood across cultures:

Monument Self (Western):

✅ Stable, unchanging core

✅ Defined by personal traits ("I am ambitious")

✅ Consistency across contexts valued

Flexible Self (Eastern):

✅ Fluid, context-dependent

✅ Defined by roles and relationships ("I am a daughter, colleague, friend")

✅ Adaptation across contexts valued

Expats often undergo a shift from monument to flexibility, not because they're adopting Eastern philosophy, but because living between cultures demands it.

This can feel disorienting for those raised in monumentalist cultures. "I don't know who I am anymore" often means: "I can no longer define myself through a single, stable lens."

The cost of identity transformation

This transformation often triggers friction. Common challenges include:

❌ Reverse culture shock: Feeling alienated in your passport country

❌ Imposter syndrome: Not feeling "authentic" in any culture

❌ Relationship strain: Growing apart from non-expat friends/family

❌ Decision fatigue: Constantly code-switching drains cognitive resources

However, research also shows significant benefits:

✅ Enhanced creativity: Exposure to multiple perspectives boosts innovation

✅ Superior problem-solving: Cultural flexibility improves adaptive thinking

✅ Stronger empathy: Understanding multiple worldviews deepens emotional intelligence

✅ Career advantage: Global companies increasingly value cultural agility

Conclusion

Living abroad, your brain is not betraying you. By changing, it's doing exactly what evolution designed it to do: adapt to survive and thrive in new environments.

In Part 3/3, we'll explore how to navigate this transformation consciously — with practical strategies and the role of professional coaching in integrating your expanded identity.

Email: sandrine.gelin@glshift.com

LinkedIn: www.linkedin.com/in/sandrinelamrani

Make an appointment: https://www.glshift.com/book-online

Web Site: www.glshift.com

Author: Sandrine Gelin-Lamrani, Founder and Director at G&L Shift, certified coachs in Barcelona, Spain. Professionnel Coaching 3.0. for conscious leadership, inclusive team management, interpersonal & intercultural communication, international carreers & global mobility