ADHD and Temporality: A Desynchronized Way of Being in the World

Journal of Attention Disorders, 2012

Objective: ADHD is often associated with difficulties in planning and time management. In this study, the authors examined the hypothesis that these functional problems in ADHD reflect systematic biases in temporal orientation. Method: To test this hypothesis, adults with ADHD (n = 30) and healthy controls (n = 60) completed the Swedish version of the Zimbardo Time Perspective Inventory (S-ZTPI). Results: Although a majority of the ADHD participants were tested under stimulant medication, they showed significant differences in all the six subscales of the S-ZTPI. Logistic regression analysis, with age, education, depression, and response inhibition as covariates, showed that the Future Positive Scale was the primary predictor of ADHD status. Conclusion: These findings suggest that ADHD is associated with systematic biases in habitual time orientation and that these differences may contribute to functional problems in ADHD. (J. of Att. Dis. 2011; XX(X) 1-XX)

Medical Science Monitor, 2019

Departmental sources Attention deficit hyperactivity disorder (ADHD) is a lifelong neurodevelopmental disorder that can affect many areas of the daily life of individuals and is associated with poor health outcomes and with debilitating deficits in executive function. Recently, increasing numbers of research studies have begun to investigate the associations between neural and behavioral manifestations of ADHD. This review summarizes recent research on the perception of time in ADHD and proposes that this symptom is a possible diagnostic characteristic. Controlled studies on time perception have compared individuals with ADHD with typically developing controls (TDCs) and have used methods that include the Zimbardo Time Perspective Inventory (ZTPI). Practical approaches to time perception and its evaluation have shown that individuals with ADHD have difficulties in time estimation and discrimination activities as well as having the feeling that time is passing by without them being able to complete tasks accurately and well. Although ADHD has been associated with neurologic abnormalities in the mesolimbic and dopaminergic systems, recent studies have found that when individuals with ADHD are treated medically, their perception of time tends to normalize. The relationship between ADHD and the perception of time requires greater attention. Further studies on time perception in ADHD with other abnormalities, including executive function, might be approaches that refine the classification and diagnosis of ADHD and should include studies on its varied presentation in different age groups.

Perspectives in Biology and Medicine, 2025

This article examines the lived experiences of ADHDers with respect to time perception, through the lens of a neuroqueer temporality framework and its representation in graphic medicine. By close-reading autobiographical comics digitally posted by Pina Varnel (ADHD Alien), Dani Donovan, Heidi Burton, and Cecil, the article studies key elements of ADHD time perception, including time blindness, the now/not now dichotomy, the waiting mode, and the state of hyperfocus. ADHDers’ perception of time is nonlinear and present-oriented, diverging from neuronormative temporal expectations. In visualizing the nuanced differences in temporal perception and their impact on ADHD self, the article contributes to the discussion of diverse ways of perceiving and interacting with the world. By recognizing these differences, the article aligns with the neurodiversity paradigm and calls for understanding ADHD as a way of being, breaking the vicious cycle of moral judgments and assumptions of intentionality based on invisible but legitimate differences in temporal perception.

Medical Science Monitor, 2021

Attention-Deficit/Hyperactivity Disorder (ADHD) is classically associated with symptoms that include inattentiveness, hyperactivity, and impulsivity together with a variety of other observable externalized symptoms. ADHD has also been associated with specific internalized cognitive symptoms, including restlessness and emotional impulsivity. This disorder has been recognized as a lifelong condition and can be recognized by a variety of unique cognitive phenomena. In addition to the frequently ignored affective symptoms exhibited by individuals diagnosed with ADHD, problems with time perception have been noted, although these are considered to be secondary issues. Temporal shifts in cognitive processing, however, may be at the very root of ADHDrelated symptoms, given the importance of coordinated signal translation in the construction of behavior. In this review, we consider the evidence that suggests that differences in time perception are a central symptom in adults with ADHD. Some of these differences include the feeling of time moving faster, which causes difficulties in prospective time tasks and inaccuracies in time estimation tasks. We analyze the literature from both neurological and psychological perspectives and include an assessment of tools that can be administered via computer to measure time perception. We also suggest several computer-based methods that might be used to address problems with time perception in both children and adults. We strongly recommend the inclusion of ADHD symptoms associated with time perception in the next revision of the Diagnostic and Statistical Manual of Mental Disorders (DSM) published by the American Psychiatric Association.

Journal of Neural Transmission, 2010

A time-processing deficit has been proposed as a neuropsychological candidate endophenotype for Attention Deficit Hyperactivity Disorder (ADHD), but its developmental trajectory still needs to be explored. In the present study, children (N = 33) and adults (N = 22) with ADHD were compared to normal controls on two time-processing tasks. For time reproduction, ADHD-related impairment was found in the full group, but not when adults were analyzed separately. For the discrimination of brief intervals, children and adults with ADHD showed different patterns of deficit. We conclude that in ADHD some time-processing deficits are still present in adults, but may take on age-related different forms.

Journal of Child Psychology and Psychiatry, 2002

Background: Deficits have been found previously in children with ADHD on tasks of time reproduction, time production and motor timing, implicating a deficit in temporal processing abilities, which has been interpreted as either secondary or primary to core executive dysfunctions. The aim of this study was to explore further the abilities of hyperactive children in skills of time estimation, using a range of time perception tasks in different temporal domains. Method: Time estimation was tested in a verbal estimation task of 10 seconds. Time reproduction was also acquired for two time intervals of 5 and 12 seconds. A temporal discrimination task aimed to determine the idiosyncratic threshold of minimum time interval (in milliseconds) necessary to distinguish two intervals differing by approximately 300 milliseconds. Twenty-two children diagnosed with ADHD were compared to 22 healthy children, matched for age, handedness and working memory skills. Results: Children with ADHD were significantly impaired in their time discrimination threshold: on average, time intervals had to be 50 ms longer for the hyperactive children in order to be discriminated when compared with controls. Children with ADHD also responded earlier on a 12-second reproduction task, which however only approached significance after controlling for IQ and short-term memory. No group differences were found for the 5-second time reproduction or verbal time estimation tasks. Conclusions: The findings suggest that children with ADHD perform poorly on time reproduction tasks which load heavily on impulsiveness and attentional processes and they also suggest that these children may have a perceptual deficit of time discrimination, which may only be detectable in brief durations which differ by several hundred milliseconds. A temporal perception deficit in the range of milliseconds in ADHD may impact upon other functions such as perceptual language skills and motor timing.

Attention-deficit hyperactivity disorder (ADHD) has been associated with anomalies in dopamine systems. Recent advances in the understanding of the core cognitive deficits in ADHD suggest that dopamine dysfunction might be expressed through shortened time scales in reward-based learning. Here this perspective is extended by the conjecture that temporal span in working memory systems might generally be shortened. As a test of this conjecture the authors focus on the implicit memory system involved in rhythmic movement, assessing the minimum tempo at which rhythmic feeling can be sustained in adults with diagnosed ADHD and in a control group of normal adults. The authors found that people with ADHD do in fact have a rhythm cut-off that is faster in tempo than those without ADHD. This finding is consistent with the idea that impaired dopamine dynamics have systemic consequences for cognitive function, essentially recalibrating the clock that sets the time scale for the subjective experience of temporal events.

Advances in Neurodevelopmental Disorders, 2022

Objectives The purpose of this theoretical analysis of current research on ADHD is to provide an account integrating executive functional profiles with its broader structural neurodevelopmental profile. Methods Comparative theoretical analyses between executive functional deficit disorder models of ADHD and results from default mode network fMRI data. This was followed by an analysis of the temporal profile of ADHD and phase synchronous neural assemblies. Results Comparative analyses suggest disparities within executive functional deficit disorder models and discontinuities between executive functional and structural profiles of ADHD. Analysis of the temporal signature of ADHD provides a potential avenue for integrating different profiles by means of anchoring executive functions within inherent diachronic neurocognitive organization. Conclusions The analyses provided suggest that executive functional deficits in ADHD arise from much broader idiosyncrasies, rooted within the inherent diachronic organization of neurocognitive function, and whose challenges must be understood in conjunction with socio cultural environmental factors.

Special and Gifted Education

Attention Deficit Hyperactivity Disorder (ADHD) is a condition that is diagnosed in a constantly growing number of individuals in the Western world. This chapter provides a short overview of the shift in the conceptualization of ADHD drawing on the five Diagnostic and Statistical Manuals (DSMs). The authors argue that focusing on the concept of timing and understanding time in ADHD may allow teachers and parents to look beyond using pharmaceutics as the first course of treatment. The chapter concludes with a case study that showcases the experience of timing domains in ADHD.