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Using a Novel Digital Go/No-Go to Dissociate Intra-subject Temporal Fluctuations in Reaction Time and Accuracy

Nguyen, T. M.; Ross, M. K.; Ning, E.; Kabir, S.; Cladek, A. T.; Barve, A.; Kennelly, E.; Hussain, F.; Duffecy, J.; Langenecker, S. L.; Zulueta, J.; Demos, A. P.; Ajilore, O. A.; Leow, A. D.

2024-06-13 psychiatry and clinical psychology
10.1101/2024.06.12.24308834 medRxiv
Show abstract

Impulsivity can be a risk factor for serious complications for those with mood disorders. To understand intra-individual impulsivity variability, we analyzed longitudinal data of a novel gamified digital Go/No-Go (GNG) task in a clinical sample (n=43 mood disorder participants, n=17 healthy controls) and an open-science sample (n=121, self-reported diagnoses). With repeated measurements within-subject, we disentangled two aspects of GNG: reaction time and accuracy in response inhibition (i.e., incorrect No-Go trials) with respect to diurnal and potential learning effects. Mixed-effects models showed diurnal effects in reaction time but not accuracy, with a significant effect of hour on reaction time in the clinical sample and the open-science sample. Moreover, subjects improved on their response inhibition but not reaction time. Additionally, significant interactions emerged between depression symptom severity and time-of-day in both samples, supporting that repeated administration of our GNG task can yield mood-dependent circadian rhythm-aware biomarkers of neurocognitive function.

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