Haigh and Buckby reviewed whether ADHD research contains evidence that rhythmic fluctuations in attention differ from those seen in people without ADHD.
What the review did
The paper combined a narrative review of rhythmic-attention research with a systematic review of electrophysiological power studies in ADHD. It identified 15 relevant studies.
Main finding
The most consistent result was actually no difference in spectral power between ADHD and comparison groups.
Among the studies that did report differences, the strongest trend was:
- higher delta and theta power
- lower alpha power
The authors proposed that this pattern could reflect slower attentional oscillations or greater oscillation amplitude in a subgroup of people with ADHD.
Evidence boundary
This is an interesting hypothesis, not an established ADHD biomarker or a clinical explanation for everyday attention problems. The review itself found inconsistency across studies, and the proposed relationship between EEG patterns and attentional rhythms remains inferential.
Do not translate this into claims such as:
- “ADHD brains have slower brain waves”
- “attention comes in predictable waves in ADHD”
- “EEG can diagnose ADHD from these rhythms”
A safer reader-facing formulation is: attention naturally fluctuates, and researchers are studying whether the timing or neural patterns of those fluctuations differ in some people with ADHD. Current evidence is not consistent enough to define a specific ADHD attention rhythm.
Source
Haigh, A., & Buckby, B. (2024). Rhythmic Attention and ADHD: A Narrative and Systematic Review. Applied Psychophysiology and Biofeedback, 49, 185–204. PMID 38198019. https://pubmed.ncbi.nlm.nih.gov/38198019/
Related: Attention and ADHD in Women