Related Experiment Video
Updated: Feb 4, 2026

Virtual Hand with Ambiguous Movement between the Self and Other Origin: Sense of Ownership and 'Other-Produced' Agency
Published on: October 28, 2020
Variation factors of stereotypical hand movements in subjects with Rett syndrome
Daisuke Hirano1,2, Takamichi Taniguchi1,3
1a International University of Health and Welfare Graduate School , Otawara , Japan.
Abstract:
Background: Stereotypical hand movements have been observed in most individuals diagnosed with Rett syndrome. Objectives: To investigate factors that increase or decrease hand stereotypies in individuals with Rett syndrome. Methods: A questionnaire regarding hand stereotypies or purposeful hand behaviours was sent to 1016 schools for special needs education and 204 facilities in Japan. Results: Information was acquired from 216 cases (3-53 years old) with Rett syndrome; 81.9% and 87.6% of individuals had factors that increased and decreased stereotypical hand movements, respectively. Stereotypies were mainly increased by displeasure (63.8%) or pleasure (48.5%), and decreased by somnolence (43.5%), pleasure (30.0%), or food (24.1%). Conclusion: Emotion was the main factor increasing stereotypical hand movements, whereas there were a large number of factors that decreased these movements. The factors that decrease stereotypies could be useful to prevent the skin problems or joint contracture observed in patients with Rett syndrome.
More Related Videos
09:35Measurement of the Hand Transmitted Vibration of the Human Hand Arm System During Operation of a Hand Tractor
Published on: June 16, 2021
08:51Author Spotlight: Integrated Multi-Omics Analysis for Unveiling Multicellular Immune Signatures in Clinical Heart Attack Cohorts
Published on: September 20, 2024
Related Concept Videos
Stereotype Content Model
Stereotype Threat and Self-fulfilling Prophecies
Stereotypes, Prejudice, and Discrimination
What is Variation?
The range, standard deviation, standard error, and variance are the different measures of variation.
Range: The range is the difference between its maximum and...
Conservative Site-specific Recombination and Phase Variation
The recognition sites for Cre recombinase called LoxP...
Variation
When independent and dependent variables are plotted on a scatter plot, the slope of a line is a value that describes the rate of change between the two...