Agitation, broadly defined to include non-compliance, refusal to cooperate with the caregiver, obstinence, resistance, crying, kicking, and being "hard to handle."
Anxiety is defined as worried or frightened behavior displayed for no apparent reason, or tense and fidgety behavior.
Irritability is rapid emotional fluctuations between frustration and impatience.
Mega, Cummings… Neurology, “The spectrum of behavioral changes in Alzheimer's disease,” http://n.neurology.org/content/46/1/130.full
Healy, Melissa, As more older Americans struggle with dementia, what happens to their guns? Los Angeles Times, 5/11/18.https://www.alz.org/maryland/documents/gun_safety.pdf
Betz, McCourt, Annals of Internal Medicine, Firearms and Dementia, 8 May 2018,
Swanson et.al., Duke Law & Contemporary Problems, Implementation and Effectiveness of Connecticut’s Risk-Based Gun Removal Law: Does It Prevent Suicides? 2017