The 4-component dopamine signature (NICC framework)
**Novelty:** Per Russell Barkley at russellbarkley.org and PubMed-indexed dopamine research at pubmed.ncbi.nlm.nih.gov, new = dopamine. Same-as-yesterday = no dopamine. ADHD adults are wired to seek novel input; routine work generates weak dopamine response.
**Interest:** Per the CHADD executive function reference at chadd.org, genuinely-interesting tasks generate strong dopamine. 'Interesting' is subjective + per-person. The implication: ADHD adults are not consistently productive on uninteresting tasks regardless of willpower investment.
**Challenge:** Per APA's research on flow at apa.org, tasks at the edge of capability (slightly hard but achievable) generate the strongest dopamine response. Too easy = boring, no dopamine. Too hard = overwhelming, no dopamine. The narrow Goldilocks zone is where ADHD adults thrive.
**Urgency (deadline pressure):** Per ADDitude Magazine at additudemag.com and the ADDA at add.org, imminent deadlines generate dopamine. This is why ADHD adults often produce best work right before deadlines + procrastinate everything else. Not optimal — the dopamine wiring is real.
**The composite:** Tasks high on all 4 (NICC) = strong dopamine = high completion probability. Tasks low on all 4 = weak dopamine = chronic avoidance. Per Russell Barkley at russellbarkley.org, the NICC composite predicts ADHD task completion better than 'importance' does.