Task-dependent human motor organization in the perioral region was examined in eight normal adults who performed oral tasks including lip protrusion, chewing, and speech. Zero phase-lag correlations among EMG signals recorded from quadrants surrounding the lips were calculated in order to determine patterns of motor coupling. Results indicated that the perioral musculature is flexible in output organization. Activity in all quadrants was highly positively correlated during the protrusion task. During the chewing task, correlations were moderate, with a stronger pattern bilaterally across the upper and lower lips. The speech tasks showed lower levels of correlation among the quadrants, but again the pattern was more highly correlated bilaterally than ipsilaterally. Results are compared to studies of oral muscle innervation in humans and animals and also are related to hypotheses of cortical control patterns for oral movement.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1044/jshr.3705.1032 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Knowledge, Attitude, Awareness, and Practice Regarding Mites Among the Thai Population.
Patient Prefer Adherence
January 2025
Faculty of Medicine, Ramathibodi Hospital, Mahidol University, Bangkok, Thailand.
Background: mites are common ectoparasites in humans and can cause various skin disorders known as demodicosis, ranging from nonspecific facial dermatitis to conditions resembling eczema, seborrheic dermatitis, folliculitis, and acne. Overgrowth of these mites can lead to pityriasis folliculorum, perioral dermatitis, blepharitis, and rosacea, significantly impacting skin health. This study aims to investigate the knowledge, attitude, awareness, and practice regarding mites in the Thai population and analyze the influencing factors associated with these aspects.
View Article and Find Full Text PDFORAL MANIFESTATIONS IN JUVENILE SCLERODERMA: CLINICAL PRESENTATIONS AND HISTOPATHOLOGICAL CHARACTERISTICS.
Georgian Med News
November 2024
Juvenile scleroderma (JS) is a rare chronic connective tissue disorder characterized by stiffening of the skin and soft tissues, including the oral cavity and perioral tissues, leading to fibrosis and a large spectrum of internal organs involvement, cosmetic defects, and early infant disability. The aim of this study was to investigate the histomorphological features of lesions of oral mucosa tissues in children with juvenile scleroderma (JS). 39 JS patients (9 with juvenile systemic sclerosis - JSS and 20 with juvenile scleroderma of head-JSH aged from 5 to 17 years were observed with dental examination and morphological investigation of the dental mucosa.
View Article and Find Full Text PDFPeriorificial dermatitis in infants and preschoolers - a narrative review.
Eur J Pediatr
January 2025
Department of Dermatology & Allergology, Städtisches Klinikum Dresden, Academic Teaching Hospital, Dresden, Germany.
Periorifical dermatitis (POD) is a papular, chronic inflammatory skin disease commonly seen in women in their 2nd to 4th decade of life. The major differential diagnosis is persistent acne. In children, POD is less common than in adults.
View Article and Find Full Text PDFBackground: Radiofrequency-assisted (RF) facial rejuvenation has become a safe and reliable option for "treatment gap" patients, including (1) patients whose skin laxity is not severe enough to warrant a facelift, yet not mild enough to reliably treat with noninvasive procedures; (2) patients who have already undergone a face or neck lift and have recurrent laxity; and (3) patients who would benefit from a traditional face or neck lift but want to avoid surgery and are willing to accept a more modest improvement without extensive surgical scar burden and recovery.
Objectives: In this study we aimed to educate the reader about providing bipolar RF to various anatomic regions of the face.
Methods: A retrospective review of cases was conducted to assess the safety of zone-specific RF-assisted facial rejuvenation in S.
Speech Kinematics and Perioral Muscle Activity Are Influenced by Stroop Effects.
J Speech Lang Hear Res
January 2025
Department of Communication Sciences and Disorders, Bowling Green State University, OH.
Purpose: The current project aimed to examine the effects of two experimental cognitive-linguistic paradigms, the Stroop task and a primed Stroop task, on speech kinematics and perioral muscle activation.
Method: Acoustic, kinematic, and surface electromyographic data were collected from the verbal responses of 30 young adult healthy control participants in choice response, classic Stroop, and primed Stroop tasks. The classic and primed Stroop tasks included congruent and incongruent trials.
Want AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!