Fig. 2

Behavioral and psychological symptoms in relation to level of cognitive impairment, for individuals with different levels of dysphoric symptoms. The x-axis = score on Gottfries’ cognitive scale. The y-axis = BPSD factor (the mean weighted score of contributing items- see text for further definition). Polynomial regression curves are fitted to the data. □ = severe to moderate dysphoric symptoms. ● = mild dysphoric symptoms. ∆ = no dysphoric symptoms. a Aggressive behavior. b Wandering behavior. c Verbally disruptive/attention seeking behavior. d Hallucinatory symptoms. e Regressive behavior. f Passiveness. g Restless behavior. h Disoriented symptoms