2/25 Late Diagnosis and Identity
- Devon Tonneson

- Feb 25
- 1 min read
What happens when you receive a diagnosis years — or decades — after you first struggled?
For many neurodivergent students, ADHD or autism is recognized late: in high school, in college, in graduate school, or even adulthood. A late diagnosis can bring relief, validation, anger, grief, clarity — sometimes all at once.
This week, DNA will explore the psychology of late diagnosis and identity reconstruction, grounded in research that explicitly examines adult ADHD and autism recognition.
We’ll draw from:
Lewis, L. F. (2016). Exploring the experience of self-diagnosis of autism spectrum disorder in adults. Archives of Psychiatric Nursing, 30(5), 575–580. https://doi.org/10.1016/j.apnu.2016.03.009
Stenner, P., Dancey, C. P., & Watts, S. (2019). The understanding of their diagnosis among adults diagnosed with autism in adulthood: A qualitative study. Autism, 23(5), 1101–1112. https://doi.org/10.1177/1362361318793118
Leedham, A., Thompson, A. R., Smith, R., & Freeth, M. (2020). “I was exhausted trying to figure it out”: The experiences of females receiving an autism diagnosis in middle to late adulthood. Autism, 24(1), 135–146. https://doi.org/10.1177/1362361319853442
We’ll discuss:
Why so many neurodivergent people are diagnosed late — especially women and marginalized groups
The emotional arc of late diagnosis: relief, grief, anger, reframing
Reinterpreting childhood experiences through a new lens
The tension between “This explains everything” and “Why didn’t anyone see this sooner?”
How diagnosis reshapes academic identity, relationships, and self-trust
The difference between medical labels and self-identification
Guiding questions:
How does naming something change how we relate to ourselves?
Is diagnosis an ending — or a beginning?
What parts of your past make more sense now?
