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Psychology

Faculty Publications

2021

Diffusional kurtosis

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Cortical Microstructural Changes Associated With Treated Aphasia Recovery, Allen J. Chang, Janina Wilmonskoetter, Julius Fridriksson, Emilie R. Mckinnon, Lorelei P. Johnson, Alexandra Basilakos, Jens H. Jensen, Chris Rorden, Leonardo Bonilha Aug 2021

Cortical Microstructural Changes Associated With Treated Aphasia Recovery, Allen J. Chang, Janina Wilmonskoetter, Julius Fridriksson, Emilie R. Mckinnon, Lorelei P. Johnson, Alexandra Basilakos, Jens H. Jensen, Chris Rorden, Leonardo Bonilha

Faculty Publications

Objectives

To investigate the hypothesis that language recovery in post-stroke aphasia is associated with structural brain changes.

Methods

We evaluated whether treatment-induced improvement in naming is associated with reorganization of tissue microstructure within residual cortical regions. To this end, we performed a retrospective longitudinal treatment study using comprehensive language-linguistic assessments and diffusion MRI sequences optimized for the assessment of complex microstructure (diffusional kurtosis imaging) to evaluate the relationship between language treatment response and cortical changes in 26 individuals with chronic stroke-induced aphasia. We employed elastic net statistical models controlling for baseline factors including age, sex, and time since the stroke, …


Cortical Microstructural Changes Associated With Treated Aphasia Recovery, Allen J. Chang, Janina Wilmskoetter, Julius Fridriksson Ph.D., Emilie T. Mckinnon, Lorelei P. Johnson, Alexandra Basilakos, Jens H. Jensen, Chris Rorden, Leonardo Bonilha Aug 2021

Cortical Microstructural Changes Associated With Treated Aphasia Recovery, Allen J. Chang, Janina Wilmskoetter, Julius Fridriksson Ph.D., Emilie T. Mckinnon, Lorelei P. Johnson, Alexandra Basilakos, Jens H. Jensen, Chris Rorden, Leonardo Bonilha

Faculty Publications

Objectives

To investigate the hypothesis that language recovery in post-stroke aphasia is associated with structural brain changes.

Methods

We evaluated whether treatment-induced improvement in naming is associated with reorganization of tissue microstructure within residual cortical regions. To this end, we performed a retrospective longitudinal treatment study using comprehensive language-linguistic assessments and diffusion MRI sequences optimized for the assessment of complex microstructure (diffusional kurtosis imaging) to evaluate the relationship between language treatment response and cortical changes in 26 individuals with chronic stroke-induced aphasia. We employed elastic net statistical models controlling for baseline factors including age, sex, and time since the stroke, …