Mind the Gap: The Cognitive Blind Spot in Epilepsy

Abstract

A Computer-Assisted Rehabilitation Program Improves Self-Management, Cognition, and Quality of Life in Epilepsy: A Randomized Controlled Trial

Duzova US, Seflek Z, Eren F, Ozturk S, Tutar MF. Epilepsy Behav. 2025 Mar;164:110277. doi: 10.1016/j.yebeh.2025.110277. PMID: 39854830.

Objective: This study aimed to evaluate the impact of a computer-assisted rehabilitation program on self-management, cognitive function, and quality of life in people with epilepsy (PwE). Methods: A randomized controlled trial was conducted with 44 PwE (22 intervention, 22 control) at a university hospital's neurology clinic. The intervention group received 12 sessions of the RehaCom program (45 min/session, twice a week for 6 weeks). Data were collected using the “Quality of Life in Epilepsy Inventory (QOLIE),” “Epilepsy Self-Management Scale (ESMS),” and “Moxo test” before and after the intervention. Results: The intervention group showed significant improvements in attention and timing dimensions of the MOXO test and reductions in hyperactivity symptoms compared to the control group (P < 0.05). ESMS scores, including overall self-management, information management, lifestyle management, and safety management subdimensions, significantly increased. Similarly, QOLIE scores, particularly in cognitive functioning, emotional well-being, and energy/fatigue, improved, while seizure worry scores decreased (P < 0.001). Significance: The computer-assisted rehabilitation program enhanced self-management, quality of life, attention, and responsiveness while reducing impulsivity and hyperactivity symptoms in PwE.

Commentary

Historically, epilepsy care has been governed by a deceptively simple metric: seizure control. Cognition, function, and quality-of-life (QOL) have often been relegated to the periphery, acknowledged, and sympathized with, but rarely embraced as modifiable targets in their own right. The randomized-controlled trial by Duzova and colleagues challenges this entrenched hierarchy by posing a more provocative question: what if cognition and self-management are not merely downstream consequences of epilepsy, but actionable leverage points for improving outcomes? ¹

The novelty of the study resides in its deployment of a cognitive intervention previously untested in persons with epilepsy (PWE). The authors demonstrate improvements in cognitive performance, epilepsy self-management, and multiple QOL domains using a computer-assisted cognitive rehabilitation program (RehaCom) in PWE. ¹ At face value, these findings are encouraging. At a deeper level, however, they compel the field to confront an uncomfortable reality: epilepsy care may be cognitively underrehabilitated not because such interventions are ineffective, but because we have historically elected not to intervene.

Cognitive impairment in epilepsy is neither subtle nor rare. Deficits in attention, processing speed, memory, and executive function affect up to 80% of PWE, ² often exerting a greater influence on daily functioning than seizures themselves. Yet cognitive dysfunction continues to be framed as an unfortunate but largely immutable accompaniment to epilepsy, a byproduct of seizures, antiseizure medications, or underlying neuropathology.

The Duzova trial directly disrupts this deterministic framing. ¹ Participants who underwent 12 sessions of cognitive rehabilitation over 6 weeks exhibited robust improvements on attention, hyperactivity, logical memory, and working memory, with clinically meaningful effect sizes. ¹ These findings suggest that cognitive networks retain a degree of plasticity even in the context of chronic epilepsy.

Although this trial was not designed to study late-onset epilepsy (LOE), its implications are arguably most consequential for aging populations. LOE, now the fastest-growing epilepsy subgroup worldwide, is defined as much by cognitive vulnerability as by seizures.^3–6 LOE emerges within a milieu of vascular disease, neurodegeneration, and diminished cognitive reserve,^3,5–7 where executive dysfunction ⁷ and memory deficits may directly compromise self-management and QOL. The observed gains in attention, executive control, and self-management suggest that cognitive rehabilitation may be most impactful when introduced early in LOE, at a stage when cognitive networks are modifiable. In this context, the findings of Duzova et al are particularly salient for LOE, positioning cognitive rehabilitation as a potential disease-intercept strategy to stabilize cognition and daily functioning before irreversible decline becomes clinically apparent.

Perhaps the most distinctive contribution of this study is not the cognitive improvement per se, but its downstream effects on self-management. ¹ Improvements were observed in information management, lifestyle management, and overall self-management scores, ¹ domains that directly influence medication adherence, safety behaviors, and social life.

This observation addresses a persistent blind spot in epilepsy research. Self-management interventions have traditionally focused on education or psychosocial support, often yielding limited and inconsistent effects. ⁸ Findings from Duzova et al suggest, implicitly if not explicitly, that self-management failure may reflect a cognitive limitation masquerading as a behavioral deficit.

Attention, working memory, and executive function are foundational prerequisites for successful self-management. ⁹ Remembering medications, recognizing seizure triggers, and implementing lifestyle modifications all rely on intact cognition. ⁹ Improving cognition, therefore, may amplify the effectiveness of existing self-management strategies, rather than compete with them.

This reframing has important implications. Rather than asking why PWE “fail” to self-manage, we may need to ask whether we have adequately supported the cognitive scaffolding necessary for self-management to succeed.

Equally striking is the magnitude of improvement observed across multiple QOL domains, including emotional well-being, energy, and social participation. ¹ While expectancy effects and the intensive nature of the intervention cannot be dismissed, the breadth of improvement suggests that cognitive rehabilitation may exert effects beyond narrowly defined cognitive domains. Notably, seizure worry decreased despite no reported changes in seizure frequency. ¹ This dissociation reinforces the notion that seizure burden and seizure meaning are not synonymous. Cognitive clarity, improved attention, and enhanced executive control may recalibrate how individuals appraise seizure risk, mitigating anticipatory anxiety even when seizure control is suboptimal.

This distinction is particularly relevant in drug-resistant epilepsy, where seizure freedom may remain elusive. If QOL can be meaningfully improved without eliminating seizures, then epilepsy care must expand its definition of therapeutic success.

Despite its strengths, this trial also exposes critical gaps. The sample size is modest, limiting generalizability; follow-up duration is short, and the intervention is resource-intensive. ¹ Participants were relatively young, cognitively intact by screening measures, and able to attend twice-weekly in-person sessions. These characteristics hardly represent the broader epilepsy population, particularly older adults, individuals with intellectual disability, or those with limited access to specialty care. Moreover, the absence of neuroimaging, electrophysiologic correlates, or long-term follow-up leaves critical mechanistic questions unresolved. ¹ Are cognitive gains accompanied by measurable changes in functional connectivity, network efficiency, or cortical excitability? Do improvements persist once structured training concludes, or do they decay without reinforcement?

These limitations do not diminish the importance of the findings. Rather, they underscore the need for the next generation of studies to be larger, more inclusive, and mechanistically informed.

Where, then, do we go from here? First, cognitive screening and comprehensive neuropsychological assessment should be incorporated into routine clinical care when deficits are suspected on initial screening.

Second, cognitive rehabilitation must be regarded not as an adjunctive afterthought, but as a core therapeutic modality in epilepsy care. Despite mounting evidence of the benefits of neuropsychological rehabilitation and cognitive therapy in PWE, its integration into clinical practice remains limited.^1,10 Moving forward will require a shift beyond proof-of-concept trials toward pragmatic, scalable interventions that can be delivered remotely, personalized algorithmically, and integrated into routine clinical workflows.

Third, future studies should explicitly delineate who stands to benefit most. Cognitive phenotyping, ⁷ long advocated but rarely operationalized in epilepsy, may help identify subgroups particularly responsive to rehabilitation, such as individuals with LOE, frontal network vulnerability, or higher baseline cognitive reserve.

Fourth, cognition should be embedded within precision medicine frameworks alongside imaging and electrophysiology. Cognitive trajectories may serve as early indicators of network instability, treatment response, or neurodegenerative comorbidity, particularly in aging PWE.^3–7

Finally, this work challenges the field to reconsider what constitutes “disease modification” in epilepsy. If an intervention enhances cognition, strengthens self-management, and meaningfully improves QOL, should it be regarded as secondary or transformative?

The trial by Duzova and colleagues does more than establish the feasibility of computer-assisted cognitive rehabilitation in epilepsy. ¹ It reveals a deeper truth: epilepsy care has long underestimated both the brain's capacity for cognitive recovery and the clinical imperative to cultivate it. The question is no longer whether cognition can be rehabilitated in epilepsy, but whether we are willing to expand our therapeutic imagination to fully embrace it.