The Experience of Mental Effort in ADHD: A Phenomenological Approach

Abstract

Background: Mental effort is essential in academic, occupational, and daily life, yet its subjective experience remains less understood, particularly in ADHD, where difficulty sustaining effort is a diagnostic criterion. While prior research highlights cognitive aspects, this study examined lived experience, exploring how individuals with ADHD perceive mental effort and its influence on persistence and disengagement. Methods: Five emerging adults (16–24; 2 female, 3 male) with confirmed ADHD were recruited through clinical practices. Semi-structured interviews probed thoughts, feelings, and emotions regarding mental effort. Interpretative Phenomenological Analysis was used. Results: Participants described mental effort as unpredictable and emotionally charged. Six themes emerged: (1) All-in or bored, (2) Stars needing to align, (3) Fearful approach, (4) Caught in a thought spiral, (5) Potential out of reach, (6) Struck by difference. Discussion: Findings show mental effort in ADHD is intertwined with affect and motivation, particularly autonomy, competence, and connectedness.