Understanding the Pathophysiology of Alzheimer's Disease and Mild Cognitive Impairment: A Mini Review on fMRI and ERP Studies
Figure 2
Visual motion stimuli. Four hundred white square dots (visual angle, °; luminance, 48 cd/m2) were randomly presented on a black background (visual angle, °; luminance, 0.1 cd/m2). The contrast level was 99.6%. The white dots moved at a velocity of 5.0°/s. When the white dots move incoherently, random motion stimulation is created. When the white dots move coherently, OF and HO are perceived. Abbreviations in this and subsequent figures: HO: horizontal motion; OF: optic flow (adapted from Yamasaki et al., in press [56]).
