What ADHD Time Blindness Means
“Time blindness” is a popular description of difficulty sensing the passage of time, anticipating how long an activity will take, noticing an approaching deadline, or coordinating behavior with future events. In ADHD discussions, it often refers to the experience of becoming absorbed in one activity while an appointment approaches, chronically underestimating preparation or transition time, or knowing that a deadline matters but having difficulty organizing action early enough to meet it. These experiences are clinically meaningful when they cause repeated impairment. The label itself is not a formal ADHD diagnostic criterion, a separate disorder, or a validated stand-alone clinical diagnosis.
The scientific terms are more precise. Temporal processing includes duration discrimination, estimation, production, reproduction, temporal prediction, and the organization of behavior in time. Time management includes planning, prioritization, prospective remembering, scheduling, checking progress, and switching activities at appropriate moments. A person can have difficulty in one domain and perform adequately in another. The relationship between laboratory timing performance and everyday missed deadlines is important, but neither construct can be substituted automatically for the other. Marx et al., 2022; Mette, 2023.
ADHD is a neurodevelopmental condition characterized by persistent developmentally inappropriate inattention and/or hyperactivity-impulsivity with clinically significant functional consequences. Poor time management may arise from core symptoms, executive-function demands, sleep disturbance, emotional state, environmental conditions, or a combination of mechanisms. A diagnosis requires a developmental and clinical assessment across settings, with alternative explanations and coexisting conditions considered. NIMH ADHD overview; NICE guideline NG87.
The Scientific Constructs Behind the Everyday Label
Duration discrimination
Duration discrimination asks whether one interval lasted longer than another. Experiments may present two tones, flashes, or other events separated by fractions of a second or a few seconds. The outcome is often a threshold for correctly distinguishing durations. This measure probes perceptual timing under carefully controlled conditions and does not directly measure punctuality, the capacity to maintain a calendar, or commitment to a future goal.
Time estimation
In verbal estimation, a participant experiences an interval and reports its duration, such as “seven seconds.” Estimation may be prospective, when the person knows before the interval that its duration will be judged, or retrospective, when the question comes afterward. Prospective judgments recruit ongoing attention to passing time; retrospective judgments depend more heavily on memory for the event and its contents. These methods can yield different patterns within the same participant. A child study comparing the two found greater retrospective overestimation in the ADHD group, illustrating why a statement that ADHD always causes underestimation is scientifically inaccurate. Prospective and retrospective time estimation study.
Time production and reproduction
In production, a participant indicates when a requested duration has elapsed; in reproduction, the participant recreates an interval presented earlier. Successful performance requires instructions to be maintained, attention to remain organized, response timing to be controlled, and sometimes counting strategies. A short reproduction might reflect a rapidly accumulating subjective sense of time, but it can also arise from attentional lapses, impulsive responding, altered counting, or motivational effects. These tasks are therefore informative about a system of processes rather than a single universally measurable inner clock. Marx et al., 2022.
Time-based prospective memory
Prospective memory means remembering to carry out an intended action later. Time-based prospective memory requires executing it at or near a specified moment: joining a call at 2 p.m., checking an oven after 20 minutes, or beginning a departure routine in time for a train. The person must retain the intention, monitor the relevant time, and interrupt the ongoing activity. A 2025 virtual-reality study of 71 children with ADHD and 71 comparison children found poorer time-based prospective-memory performance associated especially with less strategic clock monitoring, rather than simply fewer checks overall. This finding points toward the organization of time monitoring as a potentially modifiable pathway, while remaining a finding from a specific pediatric study. Scientific Reports study, 2025.
Time management and future-oriented behavior
Time management concerns the coordination of multiple intervals with goals: forecasting how long steps will take, building buffers, distributing work over days, beginning at an appropriate point, and stopping one task to begin another. Working memory, inhibition, motivation, planning, and context can all influence the outcome. Being able to discriminate a 500-millisecond interval is conceptually different from leaving the house on time; the common word “time” does not establish that these abilities share a unique cause. Research should measure and analyze both whenever their relationship is claimed. Mette, 2023; NICE guideline NG87.
What Meta-Analyses Actually Show
A 2022 meta-analysis by Marx and colleagues pooled 55 studies of ADHD and perceptual timing. Across duration discrimination, estimation, production, and reproduction paradigms, the authors reported significant group differences, including poorer discrimination of very brief intervals and greater variability in estimating durations of several seconds. Several patterns were consistent with an accelerated internal-clock account, while other task differences implicated attention and delay-related motivation. The study's searches extended through September 2020, and its findings concern aggregated experimental tasks, rather than a clinical test for “time blindness.” Marx et al., 2022.
Metcalfe, McFeaters, and Voyer's 2024 systematic review and meta-analysis synthesized 824 effect sizes and reported a mean standardized difference of Hedges' g = 0.688 in time-perception outcomes. Age moderated the association. The relation with working memory differed across the pediatric and adult subsamples, while ADHD presentation moderated effects in adult samples. This supports a meaningful group-level association and simultaneously challenges the assumption that all age groups, task types, and symptom presentations behave alike. The effect size describes an aggregated research contrast; it is not the expected impairment of every person with ADHD. Metcalfe et al., 2024.
A separate pediatric meta-analysis pooled 27 empirical studies, comprising 1,620 participants with ADHD and 1,249 controls. It found poorer average timing accuracy and precision, with evidence of greater overestimation in some tasks; age and gender moderated results. This pediatric evidence reinforces the significance of timing differences in development, yet it cannot directly determine adult functioning or identify an individual child's diagnosis. Pediatric time-perception meta-analysis.
The adult literature warrants particular care. Mette's 2023 review found relatively few adult studies over the preceding decade, with inconsistent results across time estimation, reproduction, and management. A Czech adult study comparing groups with differing ADHD symptom severity did not find clear task-specific differences in time perception, despite strong popular expectations. Taken together, positive meta-analytic group effects and negative individual studies show heterogeneity in populations, tasks, comparison groups, statistical adjustment, and how “time perception” is operationalized. Mette, 2023; Ptáček et al., 2022.
Why Timing Results Differ Between Studies
Interval length and task design
The cognitive demands of judging a fraction of a second differ from those of reproducing one minute or predicting a project's duration. Short intervals emphasize sensory and motor timing; longer intervals increasingly invite attention shifts, explicit counting, memory, and expectation. Even within one task, longer durations can magnify estimation error. Researchers often compare group means, whereas everyday difficulties may be driven by highly variable performance across situations. These are separate statistical questions. Marx et al., 2022; Ptáček et al., 2022.
Attention, working memory, and response control
Maintaining the instructions, monitoring an interval, resisting distractions, and deciding when to respond all influence laboratory scores. Some studies adjust for these processes or include separate measures; others do not. A 2025 case-control study of 94 children found that selective attention and response speed predicted timing accuracy within its ADHD sample. Its cross-sectional design and limited age range support a mechanistic hypothesis rather than proving a universal causal sequence. The influence of working memory also appears to differ with development. Child timing and cognitive-process study, 2025; Metcalfe et al., 2024.
Sampling, medication, and co-occurring conditions
Recruitment from specialist clinics, schools, community surveys, or adult self-report cohorts produces different combinations of ADHD severity, age, comorbidity, and referral history. Stimulant treatment status and sleep may affect performance, but protocols for withholding medication are inconsistent. Learning disorders, anxiety, depression, and sleep conditions can also change attention, arousal, pace, and temporal judgments. A finding obtained in a carefully selected clinical sample should not be presented as a universally specific feature of ADHD. Mette, 2023; NIMH ADHD overview.
Theories of Timing Differences in ADHD
Internal-clock and scalar expectancy models
One influential family of theories describes temporal judgment through an internal timing process, accumulation of pulses, memory for reference durations, and comparison between observed and expected intervals. The model helps organize findings such as duration overestimation or shortened reproduction and generates experiments about clock speed or variability. It is a theoretical representation of timing behavior, not a demonstrated literal clock that runs uniformly fast in every ADHD brain. Evidence for a faster-clock interpretation in some tasks coexists with findings that favor attention and response-related mechanisms. Marx et al., 2022.
Attention-gate and dynamic-attending accounts
Attention-gate models propose that timing quality depends partly on how consistently attention is allocated to temporal information. When attention shifts elsewhere, the experienced or recorded interval may be distorted. Dynamic-attending accounts emphasize the coordination of attention with the temporal structure of events. These perspectives can explain why predictable cues, competing stimuli, and strategy change performance without requiring a single immutable perceptual deficit. Evidence remains dependent on task and age. Child timing and cognitive-process study, 2025.
Executive control and working memory
Working memory supports the maintenance of a goal or duration while information changes. Inhibitory control helps a person withhold a premature response or interrupt an absorbing activity when a time cue arrives. Planning links the present action to future steps. ADHD-associated executive difficulties can therefore amplify both laboratory timing problems and real-world scheduling difficulties. Yet neuropsychological impairment is heterogeneous: a person may display pronounced functional difficulties with relatively typical scores in one cognitive test. See the published encyclopedia chapters on ADHD and Working Memory, ADHD and Impulse Control, and ADHD and Executive Dysfunction.
Delay aversion, reward, and state regulation
Time is also a motivational quantity. Waiting for a distant reward can make a task feel aversive, while immediate feedback can sustain performance. Delay-aversion and state-regulation models propose partly distinct context-dependent mechanisms of ADHD behavior. A person may postpone an unpleasant task despite knowing exactly how long it takes, or rapidly complete one with immediate incentives. This is a different explanatory proposition from inaccurate perceptual discrimination. Sonuga-Barke et al., 2010.
Developmental and network explanations
Timing recruits distributed networks including cortico-striatal, frontocerebellar, motor, and attentional systems. Some neuroimaging studies report atypical activation during temporal tasks in ADHD groups, but samples can be small and comparisons sometimes reveal neural differences without corresponding deficits on a behavioral measure. These findings guide mechanistic research; they do not provide an imaging biomarker for an individual or establish that one circuit explains missed deadlines. Neural interference and timing study.
How Time Difficulties Appear in Daily Life
Underestimating preparation, travel, and transitions
The period required to leave home includes locating keys, collecting materials, changing clothes, walking to transportation, and handling interruptions. People commonly think about the main task while omitting setup and transition costs. ADHD-related distractibility and shifting difficulties may magnify those omissions. Time estimation for a familiar short interval and realistic forecasting of a multi-step morning routine are distinct abilities; interventions should identify which step actually fails.
Missing the right moment to start
A long-term assignment may be understood intellectually but remain insufficiently salient until its deadline is near. Beginning requires converting a distant target into an immediate next action, remembering the target amid competing activities, tolerating uncertainty about duration, and repeating effort without immediate reward. Failure to start does not demonstrate a defective internal clock by itself. The relevant clinical formulation may involve planning, task initiation, reward sensitivity, avoidance, or environmental overload, with different supports for different patterns.
Losing track of time during engagement
People with and without ADHD can become deeply engaged in absorbing tasks and underestimate the time spent. In ADHD communities the term “hyperfocus” often describes intense, difficult-to-interrupt engagement. Its boundaries, measurement, and diagnostic status remain unsettled. An episode of sustained absorption can coexist with other periods of distractibility; neither alone identifies a specific timing mechanism. A useful assessment asks what captures attention, which external reminders are present, and how reliably the person shifts tasks when necessary.
Forgetting actions that must happen later
A person may correctly estimate how long a task lasts yet forget to begin it at the intended time. This is a prospective-memory problem. Clock cues, reminders with explicit action instructions, and preparation of needed materials address future intention retrieval. The 2025 virtual-reality findings particularly suggest that strategic monitoring of time, rather than indiscriminate checking, deserves more study as a target of support. Prospective-memory study, 2025.
Relationships and shared schedules
Repeated lateness can create practical burdens and conflict in families, friendships, workplaces, and partnerships. A scientific formulation records the observable sequence: when an appointment was made, how it was stored, whether a reminder was noticed, how transition time was calculated, and what interfered with departure. Collaborative scheduling and explicit shared expectations often make the problem measurable. ADHD provides relevant context but should not erase the interpersonal impact or determine responsibility by itself. NICE guideline NG87.
Children, Adolescents, and Adults
In childhood, temporal judgments, executive processes, self-monitoring, and use of external schedules develop together. The adults around a child provide substantial scaffolding: bells, meal routines, transportation, classroom transitions, and reminders. Timing deficits in a pediatric experiment have to be interpreted against age-appropriate developmental expectations, learning demands, and the particular interval being tested. Pediatric meta-analyses provide stronger quantitative coverage than much of the available adult literature. Pediatric time-perception meta-analysis.
Adolescence often brings larger assignments, simultaneous classes, independent travel, shifting sleep schedules, and more complex social obligations. A young person may succeed with strong school structure but encounter impairment when external cues decrease. Effective support respects growing autonomy by teaching use of planning tools and involving the adolescent in the choice of prompts, rather than simply increasing surveillance. Diagnosis and treatment decisions remain age-specific and clinically supervised. NICE guideline NG87.
In adulthood, occupational deadlines, financial obligations, caregiving, shift work, and relationships create substantial demands for prospective memory and temporal coordination. Self-reported lateness should be evaluated alongside work conditions, stress, sleep, mood, and longstanding ADHD symptoms. The current adult empirical literature is mixed enough that a single perceptual-timing score cannot stand in for a comprehensive assessment. Adult treatment planning should measure functioning in the person's own contexts. Mette, 2023; NIMH adult ADHD guidance.
Clinical Assessment: What Can and Cannot Be Concluded
Begin with impairment and developmental history
A clinician investigating chronic lateness or time-management complaints asks when the difficulties emerged, where they occur, and what consequences they have had. Useful examples include missed shifts, unfinished schoolwork, medication adherence problems, dangerous rushing, and repeated failures to transition between tasks. An ADHD assessment also addresses persistent inattention and/or hyperactivity-impulsivity, childhood onset, duration, pervasiveness, impairment, and competing conditions. “Time blindness” alone does not satisfy these requirements. NIMH ADHD overview; NICE guideline NG87.
Rating scales, interviews, and observation
Validated ADHD rating scales can collect symptom information systematically, while interviews and collateral accounts establish chronology, context, and impact. Time-use diaries and deadline logs may illuminate concrete bottlenecks and track support needs, even when they are not validated as diagnostic instruments. Information from multiple settings is especially important in children. In adults, childhood reports, records, and informants may clarify whether impairment represents a persistent developmental pattern. See ADHD and Neuropsychological Testing: Uses and Diagnostic Limits.
Laboratory timing tasks are research measures
Duration discrimination, estimation, and reproduction tests can characterize cognitive performance. Their scores overlap between people with and without ADHD. Published group-average differences do not supply clinical sensitivity, specificity, or cutoff values sufficient to diagnose the condition in an individual. A clinician may use neuropsychological evaluation to explore strengths, learning differences, or functional needs, while the diagnosis remains clinical. Claims that a simple online “time blindness test” diagnoses ADHD exceed the current evidence. Metcalfe et al., 2024; NIMH ADHD overview.
Consider other explanations and co-occurring conditions
Sleep restriction and circadian misalignment can produce morning lateness, sluggish processing, and poor self-monitoring. Anxiety may provoke excessive time checking or avoidance. Depression may impair initiation and prospective memory. Autism, learning disorders, substance use, high workload, changing shifts, and stressful circumstances can produce overlapping patterns, with or without ADHD. Sudden onset or major changes in timing abilities should prompt assessment for relevant medical, neurological, sleep, or psychiatric causes. The clinical question is how these factors interact in this person's life. NIMH ADHD overview; NICE guideline NG87.
Interventions and the Quality of Their Evidence
Treat the diagnosed condition and the specific functional difficulty
Evidence-based ADHD care is multimodal and age-sensitive, combining psychoeducation, environmental adaptations, behavioral interventions, school or work support, and—when indicated—clinician-managed medication. Treatment aims include improved function, quality of life, and reduced impairment, as well as symptom control. A complaint about time does not automatically indicate a need for medication or prove that a medicine will normalize experimental timing scores. The NICE ADHD guideline recommends structured shared treatment planning and attention to educational, occupational, and psychological needs.
Time cues and assistive tools
Visible clocks, timers, alarms, calendar notifications, countdown displays, advance departure prompts, and written step lists externalize information that is otherwise easy to lose during an activity. Their mechanism is practical: make the next relevant time boundary salient and specify what action follows it. A reminder labeled “leave now with bag and keys” may be easier to execute than an ambiguous alert. These are low-risk accommodations that can be individually trialed and monitored. Their common-sense usefulness should be distinguished from claims that any particular commercial app has proven disease-specific therapeutic efficacy.
Time-skill training and intervention trials
A randomized study of 38 medication-stable children with ADHD, aged 9 to 15, compared time-processing training plus time-assistive devices with an educational intervention. At follow-up, trained children improved more on an assessed time-processing measure, and parents reported better daily time management; children did not report a statistically significant improvement in their own daily-time-management ratings. This is promising but small pediatric evidence, not a universal protocol or a definitive estimate of real-world adult treatment benefit. Wennberg et al., 2018.
A larger randomized trial of organizational skills interventions in elementary-school children with ADHD tested approaches for organization, time management, and planning. The study supports structured, teachable behavioral methods and external reinforcement for specific functional difficulties. Its outcomes concern child organization skills in a treated population rather than isolated laboratory timing mechanisms. Abikoff et al., 2013.
ADHD-focused psychotherapy and behavioral support
For adults with significant continuing impairment, structured ADHD-focused psychological treatment, including cognitive behavioral therapy elements, can address planning, cognitive habits, adherence, avoidance, and routines. Clinical care should define goals and identify supports that the patient can actually sustain. In children, developmentally appropriate parent training, behavioral methods, and educational collaboration often provide the environment in which time-management skills can be practiced. These interventions address broader ADHD functioning; their clinical evidence must not be recast as proof that all recipients acquire a normal subjective internal clock. NICE guideline NG87.
Medication and timing outcomes
Stimulant and nonstimulant medicines have evidence for reducing ADHD symptoms in appropriately selected patients, and medication may indirectly assist with attention, inhibition, task completion, and organization. Some experimental studies investigate changes in timing tasks during medication, but heterogeneous paradigms and age groups prevent a general statement that medication specifically cures “time blindness.” Medication selection, baseline health assessment, monitoring, adverse effects, and adjustment belong to trained prescribers using age-appropriate guidance. NICE guideline NG87.
Practical Strategies Organized by Mechanism
When the main problem is underestimating task length
Record actual durations of repeated activities for several days, including setup, interruptions, transitions, and cleanup. Compare predictions with observations, then create a realistic planning estimate and a separate buffer. Reviewing the discrepancy is more useful than merely being told to “try harder to be on time.” For unfamiliar projects, divide work into visible steps and estimate each step separately. This is a functional self-management strategy consistent with structured planning approaches, rather than an independently validated diagnostic procedure.
When the main problem is failing to notice time passing
Place a clock or timer where it remains visible during the task. Use a first reminder early enough to prepare, then a clear transition signal. Adjust frequency until prompts are actionable rather than becoming ambient noise. A reminder system should specify the next behavior, the location of materials, and the consequences of deferring action. Experiment with tactile, visual, or auditory cues according to context and sensory preferences.
When the problem is remembering a future action
Create the reminder at the moment an appointment is made; store both the event and the earlier departure or preparation time. Link intention to a concrete cue: “When the 4:30 alarm sounds, close the document and put on shoes.” Where possible, stage required materials in advance. For children, shared cueing by caregivers and teachers can gradually be replaced with supported self-monitoring as the child develops independence. The science of prospective memory supports investigating the quality and timing of monitoring rather than simply adding more alarms. Prospective-memory study, 2025.
When avoidance or delayed initiation dominates
Identify the smallest meaningful first action and put it on the schedule rather than recording only the final deadline. Break a distant goal into short intervals with intermediate feedback. Consider the role of task aversion, anxiety, complexity, and weak immediate incentives. If persistent avoidance reflects depression, trauma, anxiety, or another co-occurring condition, the intervention must address that condition as well. A precise functional analysis prevents the time-blindness label from masking an actionable explanation.
When shared schedules generate conflict
Agree on which events require fixed departure times, who records changes, and when a reminder should trigger a specific action. Separate preparation time from travel time and create contingency plans for predictable delays. Evaluate improvement by observable outcomes—missed appointments, actual departure times, forgotten tasks, and distress—not by whether someone reports “feeling time” differently. NICE guideline NG87.
Limits, Unresolved Questions, and Research Priorities
Time perception is a family of cognitive processes. The field needs studies that jointly measure laboratory timing, prospective memory, real-world digital or diary-based time management, and functional impairment in the same well-characterized participants. Such work could clarify which mechanisms account for everyday difficulties and which represent largely independent findings. Research should evaluate within-person variability, developmental changes, medication status, sleep, learning differences, anxiety, and socioeconomic or organizational demands.
Meta-analyses improve precision but are limited by the studies that enter them. Different task protocols, interval lengths, control groups, statistical adjustments, and definitions of ADHD contribute heterogeneity. Publication bias, smaller studies, and incomplete reporting should be assessed whenever interpreting an apparently consistent effect. Larger adult studies and longitudinal studies of children into adulthood remain important, particularly when estimating the predictive value of timing tasks for educational and occupational outcomes. Metcalfe et al., 2024; Mette, 2023.
Treatment research also needs explicit outcome separation: improving perceived temporal accuracy, time-management behavior, ADHD symptom scales, and quality of life are not interchangeable results. Trials of time-cue technology should include active comparators, independent functional outcomes, longer follow-up, accessibility assessments, and harms such as notification fatigue. A strong intervention may improve punctuality without altering millisecond duration discrimination; this would still be a valid functional achievement. Conversely, an improved laboratory score without meaningful daily benefit should be reported accordingly. Wennberg et al., 2018.
Frequently Asked Questions
Is time blindness an official ADHD symptom?
“Time blindness” is a descriptive popular term, not an individual DSM diagnostic criterion or a stand-alone disorder. The underlying experiences may relate to established ADHD symptoms and functional impairments. Clinical diagnosis depends on a broader developmental pattern, symptom thresholds, pervasiveness, and interference with functioning. NIMH ADHD overview.
Does every person with ADHD perceive time incorrectly?
No. Meta-analyses show average differences across groups and tasks, while individuals vary widely. Some people with ADHD perform within typical ranges on particular timing tests, and a person without ADHD can experience serious time-management difficulties. Age, task design, attention, and co-occurring conditions alter findings. Metcalfe et al., 2024; Mette, 2023.
Does ADHD always make people underestimate duration?
No. Depending on the paradigm and interval, studies report overestimation, shortened reproduction, increased variability, or negligible differences. Underestimating the time required to complete a project is a planning problem and should be distinguished from estimating how long a controlled stimulus lasted. Marx et al., 2022.
Can a time-perception test diagnose ADHD?
A timing test can assess performance on its specified task. There is no established stand-alone laboratory “time blindness test” that replaces structured clinical evaluation. Rating scales are screening or assessment aids, and a qualified clinician must integrate developmental history, impairment, multiple settings, and differential diagnosis. NICE guideline NG87.
Are alarms and time-management apps evidence-based treatments?
External cues are reasonable practical supports and are consistent with clinical recommendations to use environmental modifications. A small randomized pediatric trial of time-skill training with assistive devices produced encouraging results, but broad claims about commercial tools require their own controlled evidence. Effectiveness should be evaluated for the individual and the actual outcome sought. Wennberg et al., 2018; NICE guideline NG87.
Can medication solve ADHD-related time difficulties?
Appropriate ADHD medication may improve core symptoms and facilitate organization for some people. A general promise that it cures the popular construct “time blindness” goes beyond present evidence. Treatment must be individualized, monitored, and considered alongside behavioral and environmental measures. NICE guideline NG87.
Scientific Conclusion
ADHD and time blindness refers to an important cluster of temporal and executive difficulties, but its popular name covers multiple separable constructs. Evidence from systematic reviews and meta-analyses supports group-level alterations in duration processing and related tasks. The magnitude and direction of an individual's difficulty depend on developmental stage, task demands, cognition, motivation, and context. Everyday punctuality, prospective memory, project estimation, and temporal discrimination require related but distinct kinds of explanation. A scientifically grounded approach identifies the specific difficulty, assesses ADHD through accepted clinical methods, considers co-occurring influences, and matches intervention to measurable functional outcomes. Marx et al., 2022; Metcalfe et al., 2024.
Related Articles
Cluster ADHD and Executive Function — The scientific overview of ADHD, executive functions, diagnosis, development, and treatment.
ADHD and Executive Dysfunction: Cognitive Control in Daily Life — How goal maintenance, planning, and control influence everyday functioning.
ADHD and Working Memory: Forgetfulness and Cognitive Load — The distinct roles of short-term goal maintenance and cognitive load.
ADHD and Impulse Control: Inhibition and Decision Making — Response inhibition, delayed outcomes, and decision processes.
ADHD and Neuropsychological Testing: Uses and Diagnostic Limits — Interpreting cognitive test results within comprehensive clinical assessment.
References
A naturalistic virtual reality task reveals difficulties in time-based prospective memory and strategic time-monitoring in children with ADHD. (2025). Scientific Reports. https://doi.org/10.1038/s41598-025-08944-w
Abikoff, H., et al. (2013). Remediating organizational functioning in children with ADHD: Immediate and long-term effects from a randomized controlled trial. Journal of Consulting and Clinical Psychology. https://doi.org/10.1037/a0029648
Marx, I., Cortese, S., Koelch, M. G., and Hacker, T. (2022). Meta-analysis: Altered perceptual timing abilities in attention-deficit/hyperactivity disorder. Journal of the American Academy of Child and Adolescent Psychiatry, 61, 866–880. https://doi.org/10.1016/j.jaac.2021.12.004
Metcalfe, K. B., McFeaters, C. D., and Voyer, D. (2024). Time-perception deficits in attention-deficit/hyperactivity disorder: A systematic review and meta-analysis. Developmental Neuropsychology, 49, 1–24. https://doi.org/10.1080/87565641.2023.2293712
Mette, C. (2023). Time perception in adult ADHD: Findings from a decade—A review. International Journal of Environmental Research and Public Health, 20, 3098. https://doi.org/10.3390/ijerph20043098
National Institute for Health and Care Excellence. (2018; updated 2019). Attention deficit hyperactivity disorder: Diagnosis and management (NG87). https://www.nice.org.uk/guidance/ng87/chapter/recommendations
National Institute of Mental Health. (n.d.). ADHD in adults: Four things to know. https://www.nimh.nih.gov/health/publications/adhd-what-you-need-to-know
National Institute of Mental Health. (n.d.). Attention-deficit/hyperactivity disorder: What you need to know. https://www.nimh.nih.gov/health/publications/attention-deficit-hyperactivity-disorder-what-you-need-to-know
Neural mechanisms of interference control and time discrimination in attention-deficit/hyperactivity disorder. (2010). https://pubmed.ncbi.nlm.nih.gov/20410728/
Prospective and retrospective verbal time estimation in children with ADHD. (2023). https://pmc.ncbi.nlm.nih.gov/articles/PMC10697718/
Ptáček, R., et al. (2022). Attention-deficit/hyperactivity disorder and time perception in adults: Findings from the National Czech Study. Medical Science Monitor, 28, e936849. https://doi.org/10.12659/MSM.936849
Sonuga-Barke, E. J. S., Wiersema, J. R., van der Meere, J., and Roeyers, H. (2010). Context-dependent dynamic processes in attention deficit/hyperactivity disorder: Differentiating common and unique effects of state regulation deficits and delay aversion. Neuropsychology Review. https://doi.org/10.1007/s11065-009-9115-0
Time perception deficits in attention deficit hyperactivity disorder: The role of working memory, attention and reaction time. (2025). https://pubmed.ncbi.nlm.nih.gov/40923673/
Time perception deficits in children and adolescents with ADHD: A meta-analysis. (2021). https://pubmed.ncbi.nlm.nih.gov/33302769/
Wennberg, B., Janeslätt, G., Kjellberg, A., and Gustafsson, P. A. (2018). Effectiveness of time-related interventions in children with ADHD aged 9–15 years: A randomized controlled study. European Child and Adolescent Psychiatry, 27, 329–342. https://doi.org/10.1007/s00787-017-1052-5