Alexithymia

Alexithymia is characterized by difficulty in recognizing and expressing one's emotional experiences.

The term was first used in the 1970s by psychotherapist Peter Sifneos to describe a group of people who had difficulty expressing their emotions. They may also be more prone to stress-related issues and have difficulties coping with stress in general.

Studies find the prevalence of alexithymia in autistics to range from 50% to 66% compared to a 10% prevalence in the neurotypical population (1,2).

1. Alexithymia in autistics has been associated with several negative outcomes.Social communication difficulties: Difficulty expressing emotions and interpreting the emotions of others, can interfere with social communication; which may be particularly pronounced in autistics, who already experience social communication difficulties (3).
2. Reduced quality of life due to the negative impact on social relationships (4)
3. Increased anxiety and depression: One study found that alexithymia was a significant predictor of depression in autistic adults (5).
4. Greater risk for negative outcomes: In a longitudinal study of autistic children those with higher levels of alexithymia were found to have a higher risk for negative outcomes such as anxiety, depression, and behavioral problems over time (6).

References

(1) Tsolaki, A., Batrinos, M. L., & Karekla, M. (2020). Alexithymia in Autism Spectrum Disorder: A Systematic Review. Journal of Autism and Developmental Disorders, 50(8), 2630-2645.

(2) Bird, G., Cook, R., Lewis, J., & Press, C. (2010). The Reinforcement Sensitivity Theory of Personality in Children and Adolescents with High-Functioning Autism. Journal of Autism and Developmental Disorders, 40(8), 1024-1031.

(3) Hobson, J. A., & Hobson, R. P. (2011). Identification and the mind's eye. In J. A. Hobson, & J. W. Russell (Eds.), The approximate mind: Dissociative mind in philosophy, neuroscience, and cognitive science (pp. 85-103). Oxford University Press.

(4) Grynspan, O., Weiss, P. L., Perez-Diaz, F., & Gal, E. (2018). Alexithymia and autistic traits predict health-related quality of life in individuals with high-functioning autism. Journal of Autism and Developmental Disorders, 48(5), 1525-1537.

(5) Trevisan, D. A., Birmingham, E., & Grossi, D. (2016). Alexithymia in autism spectrum disorder: A systematic review. Journal of Autism and Developmental Disorders, 46(4), 1303-1315.

(6) Hill, E. L., Berthoz, S., & Frith, U. (2014). Brief report: Cognitive processing of own emotions in individuals with autistic spectrum disorder and in their relatives. Journal of Autism and Developmental Disorders, 44(9), 2297-2304.