Network analysis of impulse dyscontrol in mild cognitive impairment and subjective cognitive decline

Objectives: To investigate conditional dependence relationships of impulse dyscontrol symptoms in mild cognitive impairment (MCI) and subjective cognitive decline (SCD).Design: Prospective, observational study. Participants: 235 patients with mild cognitive impairment (n=159) or subjective cognitive decline (n=76) from the Prospective Study for Persons with Memory Symptoms dataset. Measurements: Items of the Mild Behavioral Impairment-Checklist impulse dyscontrol subscale.Results: Stubbornness/rigidity, agitation/aggressiveness, and argumentativeness were frequent and the most central symptoms in the network. Impulsivity, the fourth most central symptom in the network, served as the bridge between these common symptoms and less central and rare symptoms.