Petr Adámek, Dominika Grygarová, Lucia Jajcay, Eduard Bakštein, Petra Fürstová, Veronika Juríčková, Juraj Jonáš, Veronika Langová, Iryna Neskoroďana, Ladislav Kesner, Jiří Horáček
Schizophrenia (SCHZ) notably impacts various human perceptual modalities, including vision. Prior research has identified marked abnormalities in perceptual organization in SCHZ, predominantly attributed to deficits in bottom-up processing. Our study introduces a novel paradigm to differentiate the roles of top-down and bottom-up processes in visual perception in SCHZ. We analysed eye-tracking fixation ground truth maps from 28 SCHZ patients and 25 healthy controls (HC), comparing these with two mathematical models of visual saliency: one bottom-up, based on the physical attributes of images, and the other top-down, incorporating machine learning...
February 20, 2024: Schizophrenia (Heidelb)