Fundamental Frequency Encoding of Linguistic and Emotional Prosody by Right Hemisphere-Damaged Speakers  

Oleh:

Pell, Marc D.

Jenis: Article from Journal - ilmiah internasional
Dalam koleksi: Brain and Language (Full Text) vol. 69 no. 2 (1999), page 161-192.
Fulltext: 69_02_Pell.pdf (172.99KB)

Isi artikel

To illuminate the nature of the right hemisphere’s involvement in expressive prosodic functions, a story completion task was administered to matched groups of right hemisphere-damaged (RHD) and nonneurological control subjects. Utterances which simultaneously specified three prosodic distinctions (emphatic stress, sentence modality, emotional tone) were elicited from each subject group and then subjected to acoustic analysis to examine various fundamental frequency (F0) attributes of the stimuli. Results indicated that RHD speakers tended to produce F0 patterns that resembled normal productions in overall shape, but with significantly less F0 variation. The RHD patients were also less reliable than normal speakers at transmitting emphasis or emotional contrasts when judged from the listener’s perspective. Examination of the results across a wide variety of stimulus types pointed to a deficit in successfully implementing continuous aspects of F0 patterns following right hemisphere insult.

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