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Social and Behavioral Sciences Commons™
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Articles 1 - 3 of 3
Full-Text Articles in Social and Behavioral Sciences
Rapid Facial Reactions Of Emotional Expressions As A Function Of Trait Sadism, Cathleen Fleury
Rapid Facial Reactions Of Emotional Expressions As A Function Of Trait Sadism, Cathleen Fleury
Electronic Thesis and Dissertation Repository
Using electromyography (EMG), it has been shown that facial muscles imperceptibly mirror the facial expressions of others, a phenomenon referred to as rapid facial reactions (RFRs). It was previously believed to follow the direct-matching hypothesis, however several recent studies have demonstrated that context and individual differences may be influencing factors on RFRs. At the present, it is unclear to what extent RFRs can be modulated. In the present study, we propose to determine the effects of facial stimuli versus non-facial stimuli on RFRs through measuring the EMG response of participants with trait sadism. The participants observed dynamic facial expressions as …
The Relationship Between Schizotypal Traits And The Perceptual Processes Of Multisensory Integration, Temporal Processing, And Speech Perception, Anne-Marie Muller
The Relationship Between Schizotypal Traits And The Perceptual Processes Of Multisensory Integration, Temporal Processing, And Speech Perception, Anne-Marie Muller
Electronic Thesis and Dissertation Repository
Multisensory integration, the binding of sensory information from different sensory modalities, may contribute to perceptual symptomatology in schizophrenia, including hallucilllnations and aberrant speech perception. Differences in multisensory integration and temporal processing, an important component of multisensory integration, are consistently found in schizophrenia. Evidence is emerging that these differences extend across the schizophrenia spectrum, including individuals in the general population with higher schizotypal traits. In two studies, the relationship between schizotypal traits and perceptual functioning is investigated. We hypothesized associations between higher schizotypal traits and decreased multisensory integration, increased auditory speech distractibility, and less precise temporal processing. In Study 1, higher …
Multisensory Associative Learning And Multisensory Integration, Sebastien Lauzon
Multisensory Associative Learning And Multisensory Integration, Sebastien Lauzon
Electronic Thesis and Dissertation Repository
Human multisensory experiences with the world rely on a combination of top-down and bottom-up influences, a process that changes throughout development. The present study explored the relationship between multisensory associative learning and multisensory integration using encephalography (EEG) and behavioural measures. While recording EEG activity, participants were exposed to novel pairings of non-sociolinguistic audiovisual stimuli of varying presentation probability while performing a detection task. The same stimuli were then used in another detection task, which was followed by an analogous behavioural speeded-response task, both of which kept probabilities equal and tested for multisensory integration. Significant relationships were found in fronto-central and …