Publications by authors named "Jennifer Ret"
Functional magnetic resonance imaging of hearing-impaired children under sedation before cochlear implantation.
Arch Otolaryngol Head Neck Surg
July 2007
Article Synopsis
- The study aimed to use functional magnetic resonance imaging (fMRI) to assess auditory function in young children with hearing impairment who are candidates for cochlear implants and are under sedation.
- Researchers tested the brain's response to various tones while conducting fMRI scans and found significant activation in the primary auditory cortex (A1) in most subjects.
- The level of A1 activation correlated strongly with post-implantation hearing improvements, suggesting that fMRI could potentially serve as a predictive tool for the success of cochlear implants in infants.
Article Synopsis
- - The study investigates language development in children over 5 years using functional MRI, aiming to better understand the dynamic changes in brain structure and function during this critical period.
- - Thirty children, ages 5 to 7, were scanned annually while performing a verb generation task, with a focus on analyzing developmental changes in language processing areas of the brain.
- - Results showed increased involvement of key brain regions in language processing as children aged, suggesting greater neuroplasticity during these years, which could inform future research on typical and atypical language development.
Previous studies have shown evidence of cortical reorganization following unilateral sensorineural hearing loss (USNHL). In addition, study participants with right USNHL have shown greater deficits in academic and language performance compared with those with left USNHL. A preliminary functional magnetic resonance imaging investigation was performed on a small cohort of participants, four with left USNHL and four with right USNHL, using the paradigm of listening to random tones.
View Article and Find Full Text PDFObjective: Ventriculomegaly has been reported in bipolar disorder, although whether it occurs at illness onset or progresses during the course of the disorder is unknown. In addition, it is unknown whether ventriculomegaly in bipolar disorder reflects acquired volume loss or underdevelopment of periventricular structures.
Method: Magnetic resonance imaging was used to measure the volumes of the lateral and third ventricles and periventricular structures (caudate, putamen, thalamus, hippocampus).