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Background <p>Binge eating and binge-eating disorder (BED) have been closely linked to emotion dysregulation and ADHD symptoms, whereas mental fatigue has received comparatively limited direct attention. The relative importance and interplay of these self-regulatory processes remain poorly understood. Network analysis offers a framework for identifying central and bridging processes within complex symptom systems.</p> Methods <p>In a psychiatric outpatient sample (<i>N</i> = 279), binge-eating severity, mental fatigue, emotion regulation difficulties, and ADHD symptoms were examined using a regularized partial correlation network. Binge-eating severity was modeled as a continuous variable for network and mediation analyses; established cutoff scores were additionally used for descriptive group comparisons. Centrality and bridge metrics were estimated, network stability was evaluated, and a theory-informed exploratory mediation analysis was conducted.</p> Results <p>Binge-eating severity was not among the most central nodes in the network but occupied a bridging position between emotional and cognitive symptom domains. Mental fatigue showed the strongest associations with binge-eating severity and occupied a prominent bridging position across symptom communities. Descriptive group comparisons indicated moderate-to-large effect sizes (η²H = 0.152–0.359), with mental fatigue showing the largest between-group differences. Within emotion regulation, strategy deficits, difficulties in goal-directed behavior, and impulse control problems were most central, whereas non-acceptance and emotional clarity were more peripheral. Mediation analyses suggested that the association between mental fatigue and binge-eating severity was partially accounted for by emotion regulation difficulties, but not by ADHD symptoms.</p> Conclusions <p>These findings suggest that binge-eating severity may be linked to co-occurring difficulties in mental fatigue and behaviorally proximal dimensions of emotion regulation. Mental fatigue may represent a clinically relevant and underexamined correlate warranting further investigation in assessment and intervention research targeting binge eating.</p>

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From Mental Fatigue to Binge Eating: Emotion Dysregulation as a Transdiagnostic Bridge

  • 期刊论文

  • 出版模式：

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  • 发表日期：

    2026年5月30日

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  • Beyza Erdogan Akturk,
  • Ayse Erdogan Kaya,
  • Lut Tamam

摘要

Background

Binge eating and binge-eating disorder (BED) have been closely linked to emotion dysregulation and ADHD symptoms, whereas mental fatigue has received comparatively limited direct attention. The relative importance and interplay of these self-regulatory processes remain poorly understood. Network analysis offers a framework for identifying central and bridging processes within complex symptom systems.

Methods

In a psychiatric outpatient sample (N = 279), binge-eating severity, mental fatigue, emotion regulation difficulties, and ADHD symptoms were examined using a regularized partial correlation network. Binge-eating severity was modeled as a continuous variable for network and mediation analyses; established cutoff scores were additionally used for descriptive group comparisons. Centrality and bridge metrics were estimated, network stability was evaluated, and a theory-informed exploratory mediation analysis was conducted.

Results

Binge-eating severity was not among the most central nodes in the network but occupied a bridging position between emotional and cognitive symptom domains. Mental fatigue showed the strongest associations with binge-eating severity and occupied a prominent bridging position across symptom communities. Descriptive group comparisons indicated moderate-to-large effect sizes (η²H = 0.152–0.359), with mental fatigue showing the largest between-group differences. Within emotion regulation, strategy deficits, difficulties in goal-directed behavior, and impulse control problems were most central, whereas non-acceptance and emotional clarity were more peripheral. Mediation analyses suggested that the association between mental fatigue and binge-eating severity was partially accounted for by emotion regulation difficulties, but not by ADHD symptoms.

Conclusions

These findings suggest that binge-eating severity may be linked to co-occurring difficulties in mental fatigue and behaviorally proximal dimensions of emotion regulation. Mental fatigue may represent a clinically relevant and underexamined correlate warranting further investigation in assessment and intervention research targeting binge eating.