Cognitive deficits’ profiles of attention and executive functions in epilepsy versus psychogenic non-epileptic seizure patients: A preliminary cross-sectional study
Psychogenic non-epileptic seizures (PNES) resemble epileptic seizures (ES) but lack the associated brain electrical disruptions. Their underlying mechanism remains elusive, even though cognitive deficits are commonly reported in both ES and PNES patients. This preliminary cross-sectional study compared attention and executive functions in 20 patients with ES (ES group) and 18 with PNES or comorbid PNES and ES (PNES group) using the Stroop task and attentional network task (ANT). Both groups exhibited a significant Stroop effect, with no significant differences between them. In the ANT assessment, the ES group had significantly slower reaction times (RTs) in non-tone conditions compared to in-tone conditions (P < 0.05). Meanwhile, the PNES group displayed no significant difference in RTs between these conditions, indicating a more pronounced alerting effect in the ES compared to PNES group. No significant disparities emerged in executive control and orientation between the groups. The findings underscore differences in attentional processing between these groups, emphasizing the clinical significance of understanding these cognitive deficits for accurate diagnosis and tailored neuropsychological rehabilitation.
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