Reduced perfusion in Broca's area in developmental stuttering
نویسندگان
چکیده
منابع مشابه
Simulated stuttering in non-stuttering healthy subjects: differentiating cause from consequence in developmental stuttering
Introduction Over the past decade several functional neuroimaging studies in developmental stuttering have been published. In comparison to non-stuttering volunteers, these studies revealed that adults who stutter show overactivation in areas such as the cerebellum, supplementary motor area (SMA), right frontal operculum (RFO), and the right insula. This overactivation mostly occurs bilaterally...
متن کاملTics and developmental stuttering.
BACKGROUND Developmental stuttering affects 1% of the population but its cause remains unclear. Recent PET studies of metabolism in the central nervous system suggest that it may be related to dysfunction in the basal ganglia or its connections with regions of the cortex associated with speech and motor control. OBJECTIVE To determine the presence and characteristics of involuntary movements ...
متن کاملNormal intracortical excitability in developmental stuttering.
Persistent developmental stuttering (PDS) shares clinical features with task-specific dystonias. In these dystonias, intracortical inhibition is abnormally weak. We therefore sought to determine intracortical inhibition and intracortical facilitation in PDS. In 18 subjects with PDS since childhood (mean age, 39.4 [SD 13.0] years) and 18 speech-fluent controls (43.6 [14.3] years), we investigate...
متن کاملNormal interhemispheric inhibition in persistent developmental stuttering.
Imaging studies suggest a right hemispheric (pre)motor overactivity in patients with persistent developmental stuttering (PDS). The interhemispheric inhibition (IHI) studied with transcranial magnetic stimulation is an established measure of the interplay between right and left motor areas. We assessed IHI in 15 young male adults with PDS and 15 age-matched fluent-speaking subjects. We addition...
متن کاملReduced fractional anisotropy in the anterior corpus callosum is associated with reduced speech fluency in persistent developmental stuttering.
Developmental stuttering is a speech disorder that severely limits one's ability to communicate. White matter anomalies were reported in stuttering, but their functional significance is unclear. We analyzed the relation between white matter properties and speech fluency in adults who stutter (AWS). We used diffusion tensor imaging with tract-based spatial statistics, and examined group differen...
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ژورنال
عنوان ژورنال: Human Brain Mapping
سال: 2016
ISSN: 1065-9471
DOI: 10.1002/hbm.23487