The general aim of this thesis was to test the effects of paralinguistic (emotional) and prior contextual (topical) cues on perception of poorly specified visual, auditory, and audiovisual speech. The specific purposes were to (1) examine if facially displayed emotions can facilitate speechreading performance; (2) to study the mechanism for such facilitation; (3) to map information-processing factors that are involved in processing of poorly specified speech; and (4) to present a comprehensive conceptual framework for speech perception, …
Contents
Information Processing: The Domain of Cognitive Psychology
Sources of Information
General Problem and Outline
Integrating Information from Various Sources
Speech Processing
The Linguistic Signal
Properties and perception of the auditory speech signal
Properties and perception of the visual speech signal
Properties and perception of the audiovisual speech signal
Linguistic context
Paralinguistic Context: Cues that Accompany the Linguistic Signal
Auditory paralanguage
Visual paralanguage
Prior Context: Priming the Lexicon for the Signal
Interim Summary
Information-Processing Capacity and Speech Processing
Bottom-up processing capacity
Top-down processing capacity
The combination of bottom-up and top-down information
Sensory impairment and information-processing capacity
Effects of Facially Displayed Emotion on the Perceiver
Processing of Emotional Cues
Emotion-Related State in the Perceiver
Objectives
Methodological Issues
Approaches and Considerations due to Theory of Science
Methods
Participants
Experimental paradigms and tests
Stimuli
Operationalistic issues
Summary of the Studies
Conclusions
A Conceptual Framework for Speech Perception
Directions for Future Research
Author: Lidestam, Björn
Source: Linköping University
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