Global ETD Search

1	Audiovisual processing of affective and linguistic prosody : an event-related fMRI study Copeland, Laura. January 2008 (has links) This study was designed to clarify some of the issues surrounding the nature of hemispheric contributions to the processing of emotional and linguistic prosody, as well as to examine the relative contribution of different sensory modalities in processing prosodic structures. Ten healthy young participants were presented with semantically neutral sentences expressing affective or linguistic prosody solely through the use of non-verbal cues (intonation, facial expressions) while undergoing tMRI. The sentences were presented under auditory, visual, as well as audio-visual conditions. The emotional prosody task required participants to identify the emotion of the utterance (happy or angry) and the linguistic prosody task required participants to identify the type of utterance (question or statement). Core peri-sylvian, frontal and occipital areas were activated bilaterally in all conditions suggesting that processing of affective and linguistic prosodic structures is supported by overlapping networks. The strength of these activations may, in part, be modulated by task and modality of presentation. Speech -- physiology. Speech Acoustics. Speech Perception -- physiology. Emotions -- physiology. Magnetic Resonance Imaging -- methods.
2	Audiovisual processing of affective and linguistic prosody : an event-related fMRI study Copeland, Laura January 2008 (has links) No description available. Speech -- physiology. Speech Perception -- physiology. Emotions -- physiology. Magnetic Resonance Imaging -- methods. Speech Acoustics.
3	Recognition Performance on Words Interrupted (10 Ips, 50% Duty Cycle) With Two Interruption Patterns Referenced to Word Onset: Young Listeners With Normal Hearing for Pure Tones and Older Listeners With Sensorineural Hearing Loss Wilson, Richard H., Irish, Staci E. 01 January 2015 (has links) OBJECTIVE: To determine in an interrupted word paradigm (Maryland CNCs; 10 ips, 50% duty cycle) if different locations of the interruption pattern produce different recognition performances. DESIGN: Repeated measures using two interruption patterns that were complementary halves referenced to word onset; one started with word onset (0-ms), the other started 50 ms later. The hypothesis was that recognition performance would be better on the 0-ms condition than on the 50-ms condition, but there would be some words with the reverse relation. STUDY SAMPLE: Twenty-four young adults with normal hearing for pure tones and 32 older adults (mean = 67 years) with sensorineural hearing loss participated. RESULTS: With the young listeners mean recognition performance on the 0-ms condition (63.1%) was significantly better than the mean performance on the 50-ms condition (47.8%). About twice as many words had better performance on the 0-ms condition. With the older listeners, who were given only stimuli on which performances were > 58% by the young normals, performances on the two conditions were the same. CONCLUSIONS: The hypothesis was supported with the young listeners. The equal performance by the older listeners on the two conditions was attributed to the manner in which the words were selected. acoustic stimulation (methods) adolescent adult age factors aged aged 80 and over audiometry pure-tone female healthy volunteers hearing loss sensorineural (physiopathology) humans male middle aged perceptual masking phonetics speech discrimination tests (methods) speech perception (physiology) time factors young adult interrupted speech auditory perception

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