Tag Archive

Speech production in healthy aging

Sörös P, Bose A, Sokoloff LG, Graham SJ, Stuss DT. Age-related changes in the functional neuroanatomy of overt speech production. Neurobiol Aging. 2009 (in print). PubMed | PDF
Abstract
Alterations of existing neural networks during healthy aging, resulting in behavioral deficits and changes in brain activity, have been described for cognitive, motor, and sensory functions. To investigate [...]

Meta-analysis of swallowing-related brain function

Sörös P, Inamoto Y, Martin RE. Functional brain imaging of swallowing: An activation likelihood estimation meta-analysis. Hum Brain Mapp 2009. PubMed | PDF
This paper presents the first quantitative voxel-wise meta-analysis of swallowing-related brain function. Data analysis was performed with the activation likelihood estimation (ALE) approach, using the freely available software GingerALE.
Abstract
A quantitative, voxel-wise meta-analysis was [...]

Functional MRI of oropharyngeal air-pulse stimulation

Sörös P, Lalone E, Smith R, Stevens T, Theurer J, Menon R, Martin R. Functional MRI of oropharyngeal air-pulse stimulation. Neuroscience 2008, 153: 1300-1308. PubMed | PDF

Background: Although the posterior oral cavity and oropharynx play a major role in swallowing, their central representation is poorly understood.
Methods: High-field functional magnetic resonance imaging of the brain [...]

Dysphagia Research Society 2008

The following oral presentation, given at the Dysphagia Research Society 2008 in Charleston, SC, USA, presents a study on somatosensory processing of brief air-pulse stimuli. A more detailed description of this study can be found here.
Sörös P, Lalone E, Smith R, Stevens T, Theurer J, Menon R, Martin R. Functional MRI of oropharyngeal air-pulse stimulation. [...]

fMRI of vibrotactile processing

Sörös P, Marmurek J, Tam F, Baker N, Staines WR, Graham SJ. Functional MRI of working memory and selective attention in vibrotactile frequency discrimination. BMC Neuroscience 2007, 8:48. PubMed Abstract Reprint

Background. To characterise the neural correlates of intact vibrotactile working memory and attention, we conducted functional MRI in 12 healthy young adults. Participants [...]

Functional imaging of speech production

This is a presentation I gave at the Ontario Aphasia Interest Group Teleconference in December 2006. It summarizes the findings of my fMRI study on speech production in healthy younger adults (Neuroimage 2006;32(1):376-387). The presentation is available as Flash web presentation or as a pdf (6 MB).

Posters for Human Brain Mapping 2006

Clustered fMRI of speech production.
This poster depicts the neural network involved in speech production as found in 9 young adults, based on my paper in Neuroimage.
Sörös P, Guttman Sokoloff L, Bose A, McIntosh AR, Graham SJ, Stuss DT. Clustered fMRI of speech production. Neuroimage 2006;31(Supplement 1):S113. Download

Age-related reorganization of the functional neuroanatomy [...]

Neural correlates of speech production

This fMRI study in Neuroimage investigates brain activation during the production of a vowel and consonant-vowel syllables in the magnet. For the reduction of speech-related artefacts, clustered image acquisition was performed. The study revealed the widespread neural circuitry involved in speech production.
Sörös P, Sokoloff LG, Bose A, McIntosh AR, Graham SJ, Stuss DT. Clustered functional [...]