title: Dynamic emotion perception and prior expectancy.
abstract: Social interactions require the ability to rapidly perceive emotion from various incoming dynamic, multisensory cues. Prior expectations reduce incoming emotional information and direct attention to cues that are aligned with what is expected. Studies to date have investigated the prior expectancy effect using static emotional images, despite the fact that dynamic stimuli would represent greater ecological validity. The objective of the study was to create a novel functional magnetic resonance imaging (fMRI) paradigm to examine the influence of prior expectations on naturalistic emotion perception. For this purpose, we developed a dynamic emotion perception task, which consisted of audio-visual videos that carry emotional information congruent or incongruent with prior expectations. The results show that emotional congruency was associated with activity in prefrontal regions, amygdala, and putamen, whereas emotional incongruency was associated with activity in temporoparietal junction and mid-cingulate gyrus. Supported by the behavioural results, our findings suggest that prior expectations are reinforced after repeated experience and learning, whereas unexpected emotions may rely on fast change detection processes. The results from the current study are compatible with the notion that the ability to automatically detect unexpected changes in complex dynamic environments allows for adaptive behaviours in potentially advantageous or threatening situations.
authors.affiliation: Queensland Brain Institute, University of Queensland, Brisbane, Australia; Centre for Advanced Imaging, University of Queensland, Brisbane, Australia. Electronic address: i.dzafic@uq.edu.au.
authors.forename: Ilvana
authors.initials: I
authors.lastname: Dzafic
authors.affiliation: Queensland Brain Institute, University of Queensland, Brisbane, Australia; University of Queensland Centre for Clinical Research, University of Queensland, Brisbane, Australia.
authors.forename: Andrew K
authors.initials: AK
authors.lastname: Martin
authors.affiliation: School of Psychology and Counselling, Queensland University of Technology, Brisbane, Australia.
authors.forename: Julia
authors.initials: J
authors.lastname: Hocking
authors.affiliation: Queensland Brain Institute, University of Queensland, Brisbane, Australia; Queensland Centre for Mental Health Research, Brisbane, Australia.
authors.forename: Bryan
authors.initials: B
authors.lastname: Mowry
authors.affiliation: Centre for Advanced Imaging, University of Queensland, Brisbane, Australia.
authors.forename: Hana
authors.initials: H
authors.lastname: Burianová
mesh_terms: D000328:Adult; D001921:Brain / Q000000981:diagnostic imaging / Q000502:physiology*; D003463:Cues; D004644:Emotions / Q000502:physiology*; D005149:Facial Expression; D005260:Female; D006801:Humans; D007091:Image Processing, Computer-Assisted; D008279:Magnetic Resonance Imaging; D008297:Male; D008875:Middle Aged; D017711:Nonlinear Dynamics; D010100:Oxygen / Q000097:blood; D010775:Photic Stimulation; D011930:Reaction Time / Q000502:physiology; D014796:Visual Perception / Q000502:physiology*; D055815:Young Adult
chemical_list: D010100:Oxygen
keywords: Audio-visual videos; Dynamic emotion perception; Functional magnetic resonance imaging (FMRI); Partial least-squares (PLS); Prior expectations