A post going around says a leading ADHD expert "revolutionised the way we think about ADHD diagnosis" by arguing that ADHD is not about attention at all, but about self-regulation. The researcher behind this idea, Russell Barkley, is real and genuinely influential: a clinical professor of psychiatry, author of 23 books and more than 280 scientific papers, and a recipient of career-achievement awards from the American Psychological Association and the American Academy of Pediatrics. The ideas themselves check out too, when you read his own writing rather than a carousel summary. What does not check out is the framing that this "changes everything."
The Core Idea: Self-Regulation, Not Just Attention
Barkley's argument, laid out in his own guest column on the topic, starts from a simple observation: the most common form of ADHD, Combined Type, involves more than distractibility. It involves difficulty inhibiting actions and words, weak working memory, poor self-awareness, and trouble sustaining motivation toward a goal. These are the ingredients of what psychologists call self-regulation: directing an action at yourself to change your own future behaviour. Barkley's point, first argued in 1994 and developed since, is that each of the specific mental skills grouped under "executive function" (inhibition, working memory, planning, emotional control) is really a form of self-regulation. If ADHD involves deficits in all of these, he argues, then ADHD and "self-regulation deficit disorder" are effectively the same thing wearing two different names.
"A Disorder of Performance, Not of Knowledge"
The line quoted most often from Barkley's work, and the one behind the viral post, is real and accurately quoted: disorders of executive function "create disorders mainly of performance rather than of knowledge or skills." In his own words, the problem is not that someone with ADHD does not know what they should do. It is that knowing does not reliably translate into doing, especially outside the exact moment and place where the action needs to happen. He calls this the "point of performance" - and argues that most classroom and clinical interventions fail because they hand out more knowledge (a lecture, a lesson, a conversation about better habits) when the person's actual deficit is in acting on knowledge they already have.
Time Blindness: Living in "Now" and "Not Now"
The post's "no middle ground between now and not now" is a simplified version of a real Barkley concept: temporal myopia. He compares it to nearsightedness, but for time instead of space. Behaviour stays governed by whatever is close and immediate, while information about longer-term consequences carries little weight. This is a faithful summary of his actual argument, even if "now vs not now" is a popularised phrase rather than his own exact wording.
What This Means in Practice
Barkley does not stop at description. He draws three concrete implications from the model. First, externalize information: since internal, private reminders are weak at controlling behaviour in ADHD, physical cues placed at the point of performance (a sign, a checklist, an alarm) work better than a rule someone is expected to simply remember. Second, externalize time: rather than assigning a project due "in a month," break it into daily steps with immediate feedback, since large temporal gaps are exactly what the ADHD brain struggles to bridge. Third, externalize motivation: because internally generated motivation is weak, external and even artificial rewards (a token system, a small immediate incentive) function like a prosthetic, not a crutch.
Where the Post Overstates It
Two things are missing from the "revolutionised... changes everything" framing. First, by Barkley's own admission in the same piece, "the official name for the disorder will not be changed anytime soon" - this reframing has not altered the formal diagnostic criteria for ADHD, which still center on inattention, hyperactivity and impulsivity. Second, executive-function theory is one influential model among several competing and complementary accounts of ADHD in the research literature, not a single discovery that supersedes the rest. Barkley also leans heavily toward medication in his own conclusions, calling it "the predominant treatment approach" because it is the only intervention shown to temporarily normalize executive function - a stance that reflects his own clinical position, not a settled consensus across the field.
If This Resonates
Whatever the theoretical debate, the practical description, knowing what to do but struggling to actually do it at the right moment, is one many adults with ADHD recognise immediately. If it sounds like your own experience, a validated screener is a more useful next step than a single expert's framework. The ASRS-v1.1 takes about 10 minutes and is free.
Source: Barkley RA. "The Important Role of Executive Functioning and Self-Regulation in ADHD." Guest column, russellbarkley.org, partially based on his book Executive Functioning and Self-Regulation (2012). Quotations are from that piece; the fact-check framing is ours.