Four adult right-handed chronic stutterers and four age-matched controls completed H(2)(15)O PET scans involving overt and imagined oral reading tasks. During overt stuttered speech prominent activations occurred in SMA (medial), BA 46 (right), anterior insula (bilateral), and cerebellum (bilateral) plus deactivations in right A2 (BA 21/22). These activations and deactivations also occurred whe...

Stuttering has been the subject of much research, nevertheless its etiology remains incompletely understood. This article presents a critical review of the literature on stuttering, with particular reference to the role of the basal ganglia (BG). Neuroimaging and lesion studies of developmental and acquired stuttering, as well as pharmacological and genetic studies are discussed. Evidence of st...

It was hypothesized that stuttering may be related to impaired sensory gating, leading to overflow of superfluous disturbing auditory feedback and breakdown of the speech sequence. This hypothesis was tested using the acoustic startle prepulse inhibition (PPI) paradigm. A group of 22 adults with developmental stuttering were compared with controls regarding the degree of PPI. No significant dif...

Objective: The experience of stuttering is more complex than its observable behaviors, and in order for a person who stutters (PWS) to truly experience fluent speech the complete experience of stuttering must be removed. This study investigates the effects of various speaking conditions on one aspect of the experience of stutteringanticipation of stuttering. Methods: Ten adult stutterers were a...

UNLABELLED The purpose of the study was to investigate the life experiences of a group of South African adults who stutter and the impact of stuttering on their quality of life. Participants were 16 adults with a mean age of 28.9 and ranging from 20 to 59 years. Methods involved individual interviews designed to explore the life domains of education; social life; employment; speech therapy; fam...

The purpose of this proposed study is to assess how one widely-marketed device for the treatment of stuttering (i.e., SpeechEasy) influences stuttering in adults with persistent developmental stuttering (PDS). The first experiment is designed to examine specific parameters (delayed auditory feedback-DAF, frequency altered feedback-FAF settings, Ear Placement-Right versus Left Ear) on ameliorati...

PURPOSE The experiential claims of nine people who stuttered were examined with the purpose of determining the impact of stuttering on their work lives and to further examine what meaning they derive from these experiences. METHOD Six male and three female participants aged 29-61 years (mean age, 41.4) who stuttered were interviewed and verbatim interview transcripts were analyzed using inter...

UNLABELLED The use of mindfulness training for increasing psychological well-being in a variety of clinical and nonclinical populations has exploded over the last decade. In the area of stuttering, it has been widely recognized that effective long-term management often necessitates treatment of cognitive and affective dimensions of the disorder in addition to behavioral components. Yet, mindful...

UNLABELLED Little is known about how middle school students perceive a similar-aged peer who stutters. Therefore, the purpose of this study was to examine the influence of stuttering frequency, Likert statement type (affective, behavioral, cognitive), and the gender of the listener on middle school students' perceptions of a peer who stutters. Sixty-four middle school students (10-14 years) ind...