scholarly journals Evaluation of Child–Computer Interaction Using Fitts’ Law: A Comparison between a Standard Computer Mouse and a Head Mouse

Sensors ◽  
2021 ◽  
Vol 21 (11) ◽  
pp. 3826
Author(s):  
Cristina Sanchez ◽  
Vanina Costa ◽  
Rodrigo Garcia-Carmona ◽  
Eloy Urendes ◽  
Javier Tejedor ◽  
...  
Keyword(s):  
Motor Control ◽  
Inertial Sensor ◽  
Psychomotor Development ◽  
Fine Motor ◽  
Input Devices ◽  
Fitts Law ◽  
Computer Mouse ◽  
Adults And Children ◽  
Study Participants ◽  
Computer Interaction

This study evaluates and compares the suitability for child–computer interaction (CCI, the branch within human–computer interaction focused on interactive computer systems for children) of two devices: a standard computer mouse and the ENLAZA interface, a head mouse that measures the user’s head posture using an inertial sensor. A multidirectional pointing task was used to assess the motor performance and the users’ ability to learn such a task. The evaluation was based on the interpretation of the metrics derived from Fitts’ law. Ten children aged between 6 and 8 participated in this study. Participants performed a series of pre- and post-training tests for both input devices. After the experiments, data were analyzed and statistically compared. The results show that Fitts’ law can be used to detect changes in the learning process and assess the level of psychomotor development (by comparing the performance of adults and children). In addition, meaningful differences between the fine motor control (hand) and the gross motor control (head) were found by comparing the results of the interaction using the two devices. These findings suggest that Fitts’ law metrics offer a reliable and objective way of measuring the progress of physical training or therapy.

scholarly journals ANALYSIS OF FINE MOTOR CONTROL IN INSTITUTIONALIZED SHELTERED CHILDREN AND ADOLESCENTS THROUGH PERFORMANCE IN COMPUTER SOFTWARE

2020 ◽  
Vol 38 ◽  
Author(s):  
André Wesley de Araujo ◽  
Rafaela Villa Almeida ◽  
Tania Brusque Crocetta ◽  
Carlos Bandeira de Mello Monteiro ◽  
Deborah Cristina Gonçalves Luiz Fernani ◽  
...  
Keyword(s):  
Motor Control ◽  
Children And Adolescents ◽  
Computer Software ◽  
Body Awareness ◽  
Cross Sectional Study ◽  
Psychomotor Development ◽  
Fine Motor ◽  
Horizontal Line ◽  
Fine Motor Control ◽  
Cross Sectional

ABSTRACT Objective: To analyze the psychomotor development and the fine motor control of institutionalized and non-institutionalized sheltered children and adolescents. Methods: A cross-sectional study in which 54 subjects participated and were divided into two groups: 27 institutionalized sheltered children and adolescents (SG) and 27 non-institutionalized sheltered children and adolescents (CG). The psychomotor battery and the Learning and Motor Control software were used to evaluate development and motor control. The analysis of variance was performed for both groups with repetitive measurements for the last factor. Results: The SG presented a total development score inferior to the CG, with differences in tonicity (p=0.041) and body awareness (p=0.039). The longest distance was performed on Task 1 (M=983.9 pixels; diagonal line; distance of 930.053 pixels), with no difference between the groups (p=0.64). Furthermore, the SG presented a greater average time in Task 1 (M=16.12 seconds) when compared with Tasks 2 (M=11.6 seconds; horizontal line; distance of 750 pixels) and 3 (M=10.6; vertical line; distance of 550 pixels), but only marginally different between Tasks 2 and 3 (p=0.055). Regarding the number of correct answers, the CG scored more (M=6.1) when compared with SG (M=4.6), with p<0.05. Conclusions: The institutionalized individuals showed a psychomotor development inferior to the CG. Furthermore, they presented impairment in fine motor control, covering a larger distance on the task that required the diagonal movement, longer execution time, less correct answers, and more errors.

scholarly journals Kontrol Mouse Menggunakan Webcam Berdasarkan Deteksi Warna

2019 ◽  
Vol 1 (1) ◽  
pp. 73-77
Author(s):  
Feri Fadli Aiyub ◽  
Munawir Munawir
Keyword(s):  
Image Processing ◽  
Optical Flow ◽  
Object Tracking ◽  
Rapid Development ◽  
Input Devices ◽  
Flow Method ◽  
Optical Flow Method ◽  
Computer Mouse ◽  
Virtual Mouse ◽  
Computer Interaction

The interaction technology in general is inseparable from the rapid development of Human-Computer Interaction technology or Human and Computer Interaction. Human and computer mouse interactions are called Virtual Mouse. Virtual mouse is designed for users to be able to interact directly with computers without using input devices such as conventional mice but using their hands as driving objects or using other media such as colors. In this research, testing is done on how to track an object that moves in order to do the mouse by using an intermediary in the form of an image processing-based webcam video that is taken in real-time using object tracking in the form of three color variables arranged based on RGB composition using the optical flow method in detecting its movement. Based on research that has been carried out as a whole the color object used as a pointer controller or mouse with the optical flow method can be detected properly in every condition.

A comparison of hand function in Colles and scaphoid casts using a modified Jebsen Hand Function Test

2021 ◽  
pp. 175319342110304
Author(s):  
Anuhya Vusirikala ◽  
Daniel Williams ◽  
Hui Fen Koo ◽  
Joseph Godwin ◽  
Leticia Costalago ◽  
...  
Keyword(s):  
Hand Function ◽  
Careful Consideration ◽  
Time Difference ◽  
Fine Motor ◽  
Computer Mouse ◽  
Function Test ◽  
Motor Movements ◽  
Study Participants ◽  
The Impact ◽  
Mean Time

This study investigates the impact of Colles versus scaphoid casts on hand function in modern day activities using the Jebsen Hand Function Test with additional modified subtests including texting on a mobile phone, using a computer mouse and typing on a computer keyboard. Twenty healthy volunteers were recruited for the study. Study participants performed worse in a scaphoid cast compared to a Colles cast; most evident in tasks involving fine motor movements such as writing, picking up small objects and stacking checkers (mean time difference 2.3 seconds, 1.5 seconds and 1.2 seconds, respectively) and tasks involving forearm rotation such as card turning and picking up large light objects (mean time difference 1.6 seconds and 1.1 seconds, respectively). This study highlights the importance of careful consideration when assessing the need for thumb immobilization, due to its impact on hand function when performing both traditional and modern-day activities of daily living.

scholarly journals Sleep and cardiometabolic risk: a cluster analysis of actigraphy-derived sleep profiles in adults and children

SLEEP ◽  
2021 ◽  
Author(s):  
Lisa Matricciani ◽  
Catherine Paquet ◽  
François Fraysse ◽  
Anneke Grobler ◽  
Yichao Wang ◽  
...  
Keyword(s):  
Cluster Analysis ◽  
Cardiometabolic Risk ◽  
High Efficiency ◽  
Cardiometabolic Health ◽  
Maturity Stage ◽  
Cluster Membership ◽  
Geographic Clustering ◽  
Adults And Children ◽  
Study Participants ◽  
Generalised Estimating Equations

Abstract Study objectives Sleep plays an important role in cardiometabolic health. While the importance of considering sleep as a multidimensional construct is widely appreciated, studies have largely focused on individual sleep characteristics. The association between actigraphy-derived sleep profiles and cardiometabolic health in healthy adults and children has not been examined. Methods This study used actigraphy-measured sleep data collected between February 2015 and March 2016 in the Child Health CheckPoint study. Participants wore actigraphy monitors (GENEActiv Original, Cambs, UK) on their non-dominant wrist for seven days and sleep characteristics (period, efficiency, timing and variability) were derived from raw actigraphy data. Actigraphy-derived sleep profiles of 1,043 Australian children aged 11-12 years and 1337 adults were determined using K-means cluster analysis. The association between cluster membership and biomarkers of cardiometabolic health (blood pressure, body mass index, apolipoproteins, glycoprotein acetyls, composite metabolic syndrome severity score) were assessed using Generalised Estimating Equations, adjusting for geographic clustering, with sex, socioeconomic status, maturity stage (age for adults, pubertal status for children) and season of data collection as covariates. Results Four actigraphy-derived sleep profiles were identified in both children and adults: Short sleepers, Late to bed, Long sleepers, and Overall good sleepers. The Overall good sleeper pattern (characterised by adequate sleep period time, high efficiency, early bedtime and low day-to-day variability) was associated with better cardiometabolic health in the majority of comparisons (80%). Conclusion Actigraphy-derived sleep profiles are associated with cardiometabolic health in adults and children. The Overall good sleeper pattern is associated with more favourable cardiometabolic health.

A tool for the rapid evaluation of input devices using Fitts' law models

1993 ◽  
Vol 25 (3) ◽  
pp. 58-63 ◽  
Author(s):  
I. Scott MacKenzie ◽  
William Buxton
Keyword(s):  
Rapid Evaluation ◽  
Input Devices ◽  
Fitts Law

scholarly journals Circle drawing and tracing dataset for evaluation of fine motor control

Data in Brief ◽  
2021 ◽  
Vol 35 ◽  
pp. 106763
Author(s):  
Eros Quarta ◽  
Riccardo Bravi ◽  
Diego Minciacchi ◽  
Erez James Cohen
Keyword(s):  
Motor Control ◽  
Fine Motor ◽  
Fine Motor Control ◽  
Circle Drawing

Hand fine motor control in classic galactosemia

2021 ◽  
Author(s):  
Jessica MacWilliams ◽  
Sneh Patel ◽  
Grace Carlock ◽  
Sarah Vest ◽  
Nancy L. Potter ◽  
...  
Keyword(s):  
Motor Control ◽  
Fine Motor ◽  
Fine Motor Control ◽  
Classic Galactosemia

Developmental Trends in Letter-Printing Skill

1972 ◽  
Vol 34 (1) ◽  
pp. 183-186 ◽  
Author(s):  
R. G. Stennett ◽  
P. C. Smythe ◽  
Madeline Hardy ◽  
H. R. Wilson
Keyword(s):  
Motor Control ◽  
Fine Motor ◽  
Factor Analyses ◽  
Fine Motor Control ◽  
Developmental Trends ◽  
Factor Pattern ◽  
Lower Case ◽  
Grade 3

Tests of kindergarten to Grade 3 students' ability to copy upper- and lower-case primary print letters showed that lower-case letters are more difficult to print. Within upper- and lower-case formats, the letters vary considerably in difficulty as a function of their composition and/or the degree of fine motor control required. Factor analyses, based upon separate intercorrelations for upper- and lower-case letters, produced 7 factors for each type of letter. Although some of the factors tended to contain letters with similar characteristics, no obvious rationale explaining the factor pattern could be developed.

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