title: Pre-existing brain states predict aesthetic judgments.
abstract: Intuition and an assumption of basic rationality would suggest that people evaluate a stimulus on the basis of its properties and their underlying utility. However, various findings suggest that evaluations often depend not only on what is being evaluated, but also on contextual factors. Here we demonstrate a further departure from normative decision making: Aesthetic evaluations of abstract fractal art by human subjects were predicted from pre-stimulus patterns of BOLD fMRI signals across a distributed network of frontal regions before the stimuli were presented. This predictive power was dissociated from motor biases in favor of pressing a particular button to indicate one's choice. Our findings suggest that endogenous neural signals present before stimulation can bias decisions at multiple levels of representation when evaluating stimuli.
authors.affiliation: Computation and Neural Systems Program, California Institute of Technology, USA.
authors.forename: Jaron T
authors.initials: JT
authors.lastname: Colas
authors.forename: Po-Jang
authors.initials: PJ
authors.lastname: Hsieh
mesh_terms: D000293:Adolescent; D000328:Adult; D001921:Brain / Q000098:blood supply* / Q000502:physiology*; D001931:Brain Mapping; D003657:Decision Making / Q000502:physiology*; D004954:Esthetics; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D007091:Image Processing, Computer-Assisted; D007600:Judgment / Q000502:physiology*; D008279:Magnetic Resonance Imaging; D008297:Male; D010100:Oxygen / Q000097:blood; D010775:Photic Stimulation; D013997:Time Factors; D055815:Young Adult
chemical_list: D010100:Oxygen
keywords: aesthetic judgment; decision making; fMRI
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