Speech is one of the fundamental and most complex human abilities. The sounds of speech consist of different frequency bands with rapid transitions between frequency bands. To produce speech sound approximately 100 muscles are needed.
The neural correlates of speech production
Own work
Sörös P, Sokoloff LG, Bose A, McIntosh AR, Graham SJ, Stuss DT. Clustered functional MRI of overt speech production. Neuroimage. 2006 Apr 20. PubMed Reprint
Presentations
Download a presentation on speech, fMRI and the neural correlates of speech production, given at the Centre for Addiction and Mental Health in Toronto, Ontario, Canada, on May 30, 2006. This presentation was made with the typesetting system LaTeX and the Beamer poster class.
Download a talk on the neural correlates of speech production, held at the School of Communication Sciences & Disorders, The University of Western Ontario, London, Canada, on October 16, 2006. This presentation was made with the Apple presentation software Keynote.
Further reading
Reviews
Ackermann H. Glimpses into the speaking brain: Imaging techniques provide new insight into speech motor control. The ASHA Leader, 2007:12(12), 10-13. Fulltext
Price CJ, Crinion J: The latest on functional imaging studies of aphasic stroke. Curr Opin Neurol 2005, 18:429-34. PubMed
Ackermann H, Riecker A: The contribution of the insula to motor aspects of speech production: a review and a hypothesis. Brain Lang 2004, 89:320-8. PubMed
Munhall KG: Functional imaging during speech production. Acta Psychol (Amst) 2001, 107:95-117. PubMed
Fiez JA: Neuroimaging studies of speech an overview of techniques and methodological approaches. J Commun Disord 2001, 34:445-54. PubMed
Original research
Bohland JW, Guenther FH: An fMRI investigation of syllable sequence production. Neuroimage 2006, 32:821-41. PubMed
Kemeny S, Ye FQ, Birn R, Braun AR: Comparison of continuous overt speech fMRI using BOLD and arterial spin labeling. Hum Brain Mapp 2005, 24:173-83.
Gracco VL, Tremblay P, Pike B: Imaging speech production using fMRI. Neuroimage 2005, 26:294-301.
Riecker A, Mathiak K, Wildgruber D, Erb M, Hertrich I, Grodd W, Ackermann H: fMRI reveals two distinct cerebral networks subserving speech motor control. Neurology 2005, 64:700-6.
Riecker A, Kassubek J, Gröschel K, Grodd W, Ackermann H: The cerebral control of speech tempo: Opposite relationship between speaking rate and BOLD signal changes at striatal and cerebellar structures. Neuroimage 2005, 29:46-53.
Blank SC, Bird H, Turkheimer F, Wise RJ: Speech production after stroke: the role of the right pars opercularis. Ann Neurol 2003, 54:310-20.
Nestor PJ, Graham NL, Fryer TD, Williams GB, Patterson K, Hodges JR: Progressive non-fluent aphasia is associated with hypometabolism centred on the left anterior insula. Brain 2003, 126:2406-18.
Blank SC, Scott SK, Murphy K, Warburton E, Wise RJ: Speech production: Wernicke, Broca and beyond. Brain 2002, 125:1829-38.
Links
Phonetics and theory of speech production.
X-ray film database for speech research. High speed x-ray films yield the best dynamic view of the entire vocal tract and provide important information about it’s time-varying properties. In particular, they accurately depict the complex movements of the tongue.