“…The small association found between a decline in participants’ information processing speed and greater AARC-losses is in line with cross-sectional evidence, documenting either negligible or small associations between indicators of poorer subjective and objective cognitive performance and greater AARC-losses (O’Brien et al, 2021; Sabatini, Ukoumunne, Ballard, Brothers, et al, 2020; Sabatini, Ukoumunne, Ballard, Collins, Anstey, et al, 2021; Zhu & Neupert, 2021). Differently from cross-sectional evidence showing that poorer cognitive performance is negligibly associated with more AARC-gains (Sabatini, Ukoumunne, Ballard, Collins, Anstey, et al, 2021), the current longitudinal study found a small association between decline in cognitive functioning and lower AARC-gains.…”