Understanding Theory of Mind: A Key Competence in Human Development

The Theory of Mind (ToM) refers to a complex set of cognitive and emotional competences that allow individuals to attribute internal states—such as beliefs, desires, emotions, thoughts, and expectations—to themselves and to others. Thanks to these abilities, humans can interpret and predict behaviors, ensure continuity of the self, and navigate the social world effectively (Premack & Woodruff, 1978; Fonagy & Target, 2002).

Also known as mentalization, mentalistic ability, social understanding, or reflective function, ToM supports a range of essential psychological processes. It allows individuals to:

• Attribute mental states to oneself and others,

• Identify causal reasons behind people’s behaviors,

• Predict future behaviors of others,

• Anticipate the consequences of events,

• Guide one’s own behavior,

• Regulate emotions and control impulses,

• Experience oneself as effective in the world (Fonagy et al., 2002).

Why Theory of Mind Matters

Acquiring a Theory of Mind is a fundamental developmental milestone. Typically, children begin to demonstrate a functioning ToM around the age of four, provided there are no developmental concerns such as disorganized attachment or certain neurodevelopmental disorders (Wellman, Cross, & Watson, 2001). Its development supports not only interpersonal relationships but also the ability to engage in empathy, moral reasoning, and self-reflection (Frith & Frith, 2005).

ToM is also central in adulthood. It underpins communication, conflict resolution, and the ability to negotiate and cooperate (Apperly, 2012). A well-developed ToM is linked with greater social competence, resilience, and adaptive emotional regulation (Hughes & Devine, 2015).

Difficulties in ToM development have been associated with various conditions, including autism spectrum disorders, schizophrenia, borderline personality disorder, and other social-cognitive impairments (Baron-Cohen, Leslie, & Frith, 1985; Sprong et al., 2007; Bateman & Fonagy, 2016). Supporting children in acquiring ToM is therefore essential both for individual well-being and for healthy community relationships.

Stages and Mechanisms of Development

Research shows that ToM does not emerge suddenly, but rather unfolds in stages:

• Infancy (0–2 years): Infants display precursors of ToM, such as joint attention, gaze following, and social referencing (Meltzoff & Brooks, 2001).

• Toddlerhood (2–3 years): Children begin to understand that others have different desires and preferences (Repacholi & Gopnik, 1997).

• Preschool years (3–5 years): False-belief understanding emerges, signaling a major milestone in ToM (Wellman et al., 2001).

• Middle childhood (6–8 years): Children refine perspective-taking and understand more complex mental states, such as second-order beliefs (Perner & Wimmer, 1985).

• Adolescence and adulthood: ToM becomes more nuanced, incorporating abstract concepts like sarcasm, irony, and double-bluff reasoning (Miller, 2009).

Neuroscientific studies have also identified brain regions associated with ToM, such as the medial prefrontal cortex, temporoparietal junction, and superior temporal sulcus (Saxe & Kanwisher, 2003; Schurz et al., 2014). These findings suggest that ToM is not only a developmental milestone but also a neural specialization supporting social cognition.

Supporting the Development of Theory of Mind in Children

Helping boys and girls develop ToM involves creating environments that foster emotional awareness, reflective thinking, and perspective-taking. Some evidence-based strategies include:

1. Engaging in pretend play: Pretend and symbolic play encourage children to adopt different roles and perspectives, which strengthens their mentalizing abilities (Lillard et al., 2013).

2. Reading and discussing stories: Storytelling, particularly involving characters with different emotions and motivations, enhances children’s capacity to infer and reflect on mental states (Adrián, Clemente, & Villanueva, 2007).

3. Encouraging conversations about feelings: Parents, teachers, and caregivers can support ToM development by labeling emotions and discussing the reasons behind behaviors, thereby promoting empathy and perspective-taking (Denham et al., 2012).

4. Secure attachment relationships: Responsive and secure caregiving promotes reflective functioning in children, strengthening their ability to mentalize (Fonagy, Gergely, Jurist, & Target, 2002).

5. Mind-mindedness in parenting: When parents explicitly refer to their child’s thoughts and feelings, they scaffold the child’s ability to recognize internal states in themselves and others (Meins et al., 2002).

6. Educational interventions: Programs that incorporate social-emotional learning and perspective-taking exercises in schools have been shown to improve ToM and empathy (Domitrovich et al., 2017).

Resources for Further Research

For readers interested in deepening their knowledge of Theory of Mind, the following resources are recommended:

• Books and Articles

  • Apperly, I. A. (2012). What is “theory of mind”? Concepts, cognitive processes and individual differences. Quarterly Journal of Experimental Psychology, 65(5), 825–839.

  • Baron-Cohen, S., Leslie, A. M., & Frith, U. (1985). Does the autistic child have a “theory of mind”?Cognition, 21(1), 37–46.

  • Fonagy, P., & Target, M. (2002). Early intervention and the development of self-regulation. Psychoanalytic Inquiry, 22(3), 307–335.

  • Hughes, C., & Devine, R. T. (2015). Individual differences in theory of mind from preschool to adolescence: Achievements and directions. Child Development Perspectives, 9(3), 149–153.

  • Wellman, H. M., Cross, D., & Watson, J. (2001). Meta-analysis of theory-of-mind development: The truth about false belief. Child Development, 72(3), 655–684.

  • Sprong, M., Schothorst, P., Vos, E., Hox, J., & van Engeland, H. (2007). Theory of mind in schizophrenia: Meta-analysis. British Journal of Psychiatry, 191(1), 5–13.

  • Schurz, M., Radua, J., Aichhorn, M., Richlan, F., & Perner, J. (2014). Fractionating theory of mind: A meta-analysis of functional brain imaging studies. Neuroscience & Biobehavioral Reviews, 42, 9–34.

• Practical Guides for Parents and Educators

  • Lillard, A. S., et al. (2013). The impact of pretend play on children’s development: A review of the evidence. Psychological Bulletin, 139(1), 1–34.

  • Meins, E., Fernyhough, C., Russell, J., & Clark-Carter, D. (2002). Security of attachment as a predictor of symbolic and mentalizing capacities: Links via representational play. Developmental Psychology, 38(2), 237–249.

  • Domitrovich, C. E., et al. (2017). Social-emotional competence: An essential factor for promoting positive adjustment and reducing risk in school children. Child Development, 88(2), 408–416.

References

Adrián, J. E., Clemente, R. A., & Villanueva, L. (2007). Mothers' use of cognitive state verbs in picture-book reading and the development of children's understanding of mind: A longitudinal study. Child Development, 78(4), 1052–1067. https://doi.org/10.1111/j.1467-8624.2007.01052.x

Apperly, I. A. (2012). What is “theory of mind”? Concepts, cognitive processes and individual differences. Quarterly Journal of Experimental Psychology, 65(5), 825–839. https://doi.org/10.1080/17470218.2012.676055

Astington, J. W. (2001). The future of theory-of-mind research: Understanding motivational states, the role of language, and real-world consequences. Child Development, 72(3), 685–687. https://doi.org/10.1111/1467-8624.00305

Baron-Cohen, S., Leslie, A. M., & Frith, U. (1985). Does the autistic child have a “theory of mind”? Cognition, 21(1), 37–46. https://doi.org/10.1016/0010-0277(85)90022-8

Bateman, A., & Fonagy, P. (2016). Mentalization-based treatment for personality disorders: A practical guide. Oxford University Press.

Denham, S. A., Bassett, H. H., Zinsser, K., & Wyatt, T. M. (2012). How preschoolers’ social–emotional learning predicts their early school success: Developing theory-promoting, competency-based assessments. Infant and Child Development, 21(6), 667–693. https://doi.org/10.1002/icd.752

Domitrovich, C. E., Durlak, J. A., Staley, K. C., & Weissberg, R. P. (2017). Social-emotional competence: An essential factor for promoting positive adjustment and reducing risk in school children. Child Development, 88(2), 408–416. https://doi.org/10.1111/cdev.12739

Fonagy, P., Gergely, G., Jurist, E. L., & Target, M. (2002). Affect regulation, mentalization, and the development of the self. Other Press.

Fonagy, P., & Target, M. (2002). Early intervention and the development of self-regulation. Psychoanalytic Inquiry, 22(3), 307–335. https://doi.org/10.1080/07351692209348990

Frith, C. D., & Frith, U. (2005). Theory of mind. Current Biology, 15(17), R644–R645. https://doi.org/10.1016/j.cub.2005.08.041

Hughes, C., & Devine, R. T. (2015). Individual differences in theory of mind from preschool to adolescence: Achievements and directions. Child Development Perspectives, 9(3), 149–153. https://doi.org/10.1111/cdep.12124

Lillard, A. S., Lerner, M. D., Hopkins, E. J., Dore, R. A., Smith, E. D., & Palmquist, C. M. (2013). The impact of pretend play on children’s development: A review of the evidence. Psychological Bulletin, 139(1), 1–34. https://doi.org/10.1037/a0029321

Meins, E., Fernyhough, C., Russell, J., & Clark-Carter, D. (2002). Security of attachment as a predictor of symbolic and mentalizing capacities: Links via representational play. Developmental Psychology, 38(2), 237–249. https://doi.org/10.1037/0012-1649.38.2.237

Meltzoff, A. N., & Brooks, R. (2001). “Like me” as a building block for understanding other minds: Bodily acts, attention, and intention. In B. F. Malle, L. J. Moses, & D. A. Baldwin (Eds.), Intentions and intentionality: Foundations of social cognition (pp. 171–191). MIT Press.

Miller, S. A. (2009). Children’s understanding of second-order mental states. Psychological Bulletin, 135(5), 749–773. https://doi.org/10.1037/a0016854

Perner, J., & Wimmer, H. (1985). “John thinks that Mary thinks that...” Attribution of second-order beliefs by 5- to 10-year-old children. Journal of Experimental Child Psychology, 39(3), 437–471. https://doi.org/10.1016/0022-0965(85)90051-7

Premack, D., & Woodruff, G. (1978). Does the chimpanzee have a theory of mind? Behavioral and Brain Sciences, 1(4), 515–526. https://doi.org/10.1017/S0140525X00076512

Repacholi, B. M., & Gopnik, A. (1997). Early reasoning about desires: Evidence from 14- and 18-month-olds. Developmental Psychology, 33(1), 12–21. https://doi.org/10.1037/0012-1649.33.1.12

Saxe, R., & Kanwisher, N. (2003). People thinking about thinking people: The role of the temporo-parietal junction in “theory of mind.” NeuroImage, 19(4), 1835–1842. https://doi.org/10.1016/S1053-8119(03)00230-1

Schurz, M., Radua, J., Aichhorn, M., Richlan, F., & Perner, J. (2014). Fractionating theory of mind: A meta-analysis of functional brain imaging studies. Neuroscience & Biobehavioral Reviews, 42, 9–34. https://doi.org/10.1016/j.neubiorev.2014.01.009

Sprong, M., Schothorst, P., Vos, E., Hox, J., & van Engeland, H. (2007). Theory of mind in schizophrenia: Meta-analysis. British Journal of Psychiatry, 191(1), 5–13. https://doi.org/10.1192/bjp.bp.107.035899

Tomasello, M. (1999). The cultural origins of human cognition. Harvard University Press.

Wellman, H. M., Cross, D., & Watson, J. (2001). Meta-analysis of theory-of-mind development: The truth about false belief. Child Development, 72(3), 655–684. https://doi.org/10.1111/1467-8624.00304

Zunshine, L. (2006). Why we read fiction: Theory of mind and the novel. Ohio State University Press.