Detail Temporal Organization of ?Internal Speech? as a Basis for Cerebellar Modulation of Cognitive Functions Bibliografi Author: Ivry, Richard B. (Co-Author); Mathiak, Klaus (Co-Author); Ackerman, Herman Topik: cerebellum; cognition; speech motor control; speech perception Bahasa: (EN )     Penerbit: SAGE Publications     Tempat Terbit: London    Tahun Terbit: 2004     Jenis: Article - untuk jurnal ilmiah Fulltext: 14BCNR31.pdf (686.0KB; 1 download) Abstract The sequencing of smooth and rhythmically ?sculptured? words and phrases at a speaker?s habitual speech rate (4 Hz to 6 Hz) critically depends on the cerebellum. Besides overt performance, the cerebellum also seems to organize the syllabic structure of ?auditory verbal imagery? or ?internal speech??that is, a prearticulatory but otherwise fully elaborated and temporally organized representation of verbal utterances. As a consequence, cerebellar disorders may compromise cognitive operations that involve a speech code, such as verbal working memory, or disrupt cognitive processes that encompass linguistic mediation. Besides the temporal organization of syllable strings at a prearticulatory level, cerebellar patients are impaired in speech perception tasks requiring the encoding of durational parameters of the acoustic signal. The hemodynamic responses associated with these two aspects of verbal-acoustic communication? internal speech and speech perception?were found to be organized along the rostro-caudal direction within paravermal aspects of the superior right cerebellar hemisphere. Those areas of the right cerebellar hemisphere thus might provide a common platform for the computation of temporal aspects of verbal utterances in the domains of both speech production and perception. Opini Anda Klik untuk menuliskan opini Anda tentang koleksi ini! Lihat Sejarah Pengadaan  Konversi Metadata   Kembali

Copyright © 2006, 2007 Unika Atma Jaya, all rights reserved