Fig. 4: Behavioral performance on the spatial memory task evaluated with standard Pr and MPT analyses.
From: The vertical position of visual information conditions spatial memory performance in healthy aging
Spatial memory is tested during the spatial memory task in which participants decide whether the object appeared in the upper or lower visual field. a Bean plots depicting the results obtained using standard Pr analyses (n = 25 young + 20 older participants). Source Pr corresponds to the percentage of correct answers weighted by the number of answered trials. We found evidence for a main effect of age (F(1, 43) = 16.78, p < 0.001, ηp2 = 0.28, 95% CI [0.08, 0.47]) and a significant interaction between age and object position (F(1, 43) = 5.37, p = 0.025, ηp2 = 0.11, 95% CI [0.00, 0.30]) on Source Pr. The bean plots provide the density curve for each group side-by-side, along with individual data points in a colored rug-plot. Bold horizontal black lines correspond to the mean in each group. ***p < 0.001, *p < 0.05. b Posterior distributions depicting the results obtained using MPT analyses (n = 25 young + 20 older participants). The graphs show posterior distributions of the inverse-probit transformed group-level parameters related to spatial memory on the probability scale. The posterior distribution corresponds to updated knowledge about the parameters Sup and Sdown after considering the current data. Sup is the probability of remembering the position of an item that was presented in the upper part of the screen, and Sdown is the probability of remembering the position of an item that was presented in the lower part of the screen.
