The effect of workload, work experience and inclined standing surface on visual spatial perception: Fall potential/prevention implications

2003 ◽  
Vol 3 (4) ◽  
pp. 251-259
Author(s):  
Laurel Kincl ◽  
Amit Bhattacharya ◽  
Paul Succop ◽  
Angshuman Bagchee
Keyword(s):  
Work Experience ◽  
Spatial Perception ◽  
Parameter Estimates ◽  
Industrial Workers ◽  
Job Experience ◽  
Horizontal Orientation ◽  
Visual Spatial ◽  
Visual Inputs ◽  
Inclined Surfaces ◽  
Main Effects

Maintenance of upright balance involves interplay between sensory (somatosensory, vestibular and visual) inputs and neuro-motor outputs. Visual spatial perception (VSP) of vertical and horizontal orientation plays a significant role in the maintenance of upright balance. For this experiment, a custom designed computer program randomly generated 42 images of horizontal and vertical lines at various angles for 60 industrial workers (39 ± 9.8 years). Half of the workers had more than three years of experience working on inclined and/or elevated surfaces. The main effects investigated included within subject factors of standing surface inclination (0°, 14° and 26°), job experience (number of months), and postural workload (0%, 50% or 100%). The VSP outcome measure was the count of correct responses to the angles presented. The inclination did not have a significant effect on VSP, but the parameter estimates indicated less correct responses on the inclined surfaces. The postural workload significantly affected the VSP, indicating that with increased workload, less correct responses were given. Finally, job experience was found to improve VSP response scores. In summary, these results indicate that job experience increases accurate VSP, while workloads and inclined work surfaces decrease accurate VSP responses.

The Effect of Challenging Somatosensory Inputs on Eye Movement and Postural Sway Patterns of Workers

2002 ◽  
Vol 46 (13) ◽  
pp. 1176-1180
Author(s):  
L. Kind ◽  
A. Bhattacharya ◽  
P. Succop
Keyword(s):  
Construction Industry ◽  
Eye Movement ◽  
Work Experience ◽  
Visual Cues ◽  
Postural Sway ◽  
Effective Means ◽  
Industrial Workers ◽  
Inclined Surfaces ◽  
Incident Rate ◽  
Length And Area

For the construction industry, especially the roofing industry, slips/trips and falls have the highest incident rate leading to an injury and fatality. This study investigated the eye movement and postural sway patterns of industrial workers (n=48) with various work experience (months of work experience on inclined surfaces), fatigue conditions (none, half and full), visual cues (none, H cue), tasks (stationary, reach) and surface inclinations (0°, 14°, 26°). Eye movement variables of length and area of movement as well as fixation data and postural sway variables of area and length were significantly affected (p<0.05) by incline, cue, task and work experience. The effect of the eye movement variables on the postural balance was limited and further study is necessary. The use of visual cues is an effective means of increasing postural stability and could be used in occupational situations where no vertical or horizontal cues are naturally available.

ON THE ISSUE OF SPATIAL PERCEPTION IN ADOLESCENTS WITH SCHIZOTYPAL PERSONALITY DISORDER: NEUROPSYCHOLOGICAL ANALYSIS

2021 ◽  
Author(s):  
Ксения Николаевна Кладкова ◽  
Алексей Анатольевич Сергиенко
Keyword(s):  
Personality Disorder ◽  
Mental Disorders ◽  
Spatial Organization ◽  
Spatial Perception ◽  
Mental Activity ◽  
Schizotypal Personality Disorder ◽  
Schizotypal Personality ◽  
Visual Spatial

Отклонения от нормативного созревания мозга в подростковом возрасте связанные с нейрокогнитивным дизонтогенезом, порождаемым психическими нарушениями, могут приводить к нарушениям формирования пространственного фактора. Выявлены особенности зрительно-пространственного и квази-пространственного восприятия у подростков с шизотипическим расстройством личности (F21). Disorders of the spatial organization of mental activity are observed in neurocognitive dysontogenesis associated with mental disorders. The features of visual-spatial and quasi-spatial perception in adolescents with schizotypal personality disorder (F21) were revealed.

scholarly journals Cortical State Fluctuations across Layers of V1 during Visual Spatial Perception

Cell Reports ◽  
2019 ◽  
Vol 26 (11) ◽  
pp. 2868-2874.e3 ◽  
Author(s):  
Anderson Speed ◽  
Joseph Del Rosario ◽  
Christopher P. Burgess ◽  
Bilal Haider
Keyword(s):  
Spatial Perception ◽  
Visual Spatial

Relationships between violent video games and cognition

2017 ◽  
Vol 7 (2) ◽  
pp. 58-70
Author(s):  
Nur Baser Baykal ◽  
Metehan Irak
Keyword(s):  
Working Memory ◽  
Information Processing ◽  
Object Recognition ◽  
Video Games ◽  
Spatial Perception ◽  
Reaction Times ◽  
Violent Video Games ◽  
Visual Spatial ◽  
Game Addiction ◽  
Memory Object

AbstractObjectives: The differential effects of playing violent video games on information processing has become an issue of concern. Neuropsychological studies provide inconsistent results regarding the effects of playing excessive video games on information processing. The goal of this study was to investigate the effect of violent video games on various cognitive processes, specifically working memory, object recognition, and visual-spatial perception. The relationships between violent video game addiction and aggression, personality, and craving were also investigated. Method: 54 university students were classified into three different groups (addicted, risk, and control) according to the time they spent game playing and their Game Addiction Scale scores. Results: Game addicted individuals have higher scores on aggression, craving, urging, and psychoticism than other groups. Significant differences in reaction times during cognitive tasks were also found. The game addicted group’s reaction times were significantly faster than for risk and non-player groups. Conclusion: This study supports previous findings that violent game playing is related with aggressive thoughts, craving, and urging. However, violent game addiction does not have negative effects on working memory, object recognition, and visual-spatial perception. Keywords: Game addiction, violent games, aggression, cognition.

Forecasting in Urban and Regional Planning Closed Loops: The Examples of Road and Air Traffic Forecasts

1978 ◽  
Vol 10 (2) ◽  
pp. 145-162 ◽  
Author(s):  
R J Bennett
Keyword(s):  
Regional Planning ◽  
Air Traffic ◽  
Forecasting Model ◽  
Parameter Estimates ◽  
Leading Indicators ◽  
Policy Feedback ◽  
Urban And Regional Planning ◽  
Closed Loops ◽  
Traffic Forecasting ◽  
Main Effects

Attempts to forecast in situations in which the leading indicators are also used as policy variables are beset by a number of statistical problems which affect the specification of the forecasting model, estimation of its parameters, and the design of policy itself. The main effects are that when there is perfect policy feedback the forecasting model cannot be identified at all; when there is partial or imperfect feedback the forecasting model is collinear, underidentified, and least-squares parameter estimates will be biased. Estimation procedures available in closed loops are reviewed, and the application of these methods to road and air traffic forecasting is discussed.

The Effects of Box Differences and Employee Job Experience on Trunk Kinematics & Low Back Injury Risk during Depalletizing Operations

1996 ◽  
Vol 40 (13) ◽  
pp. 651-655 ◽  
Author(s):  
W. Gary Allread ◽  
William S. Marras ◽  
Kevin P. Granata ◽  
Kermit G. Davis ◽  
Michael J. Jorgensen
Keyword(s):  
Injury Risk ◽  
Risk Model ◽  
Food Distribution ◽  
Low Back ◽  
Job Experience ◽  
Work Related ◽  
Back Disorder ◽  
Trunk Kinematics ◽  
Different Characteristics ◽  
Main Effects

Workers from a local food distribution center were studied depalletizing boxes from a pallet. The objectives of this study were to determine the change in trunk kinematics associated with selecting boxes having different characteristics and to observe if there was a relationship between trunk kinematics and employee job experience. The boxes varied in terms of: size; presence/absence of handles; weight; and location on a pallet. Worker job experience also was recorded. Kinematic trunk motions and subsequent risk of low back disorder (LBD), assessed using a risk model, were studied as dependent measures. Results indicated that the weight and layer conditions influenced most of the kinematic variables. The size and handle conditions influenced fewer dependent measures. All main effects but the handle condition had an influence on LBD risk. Most of the significant interaction effects were related to layer, illustrating the tremendous influence that box location on a pallet had on trunk kinematics and LBD risk. In fact, at the bottom pallet layers, LBD risk was the same regardless of the weight lifted or the size of the box. In studying job experience, inexperienced workers were found to have LBD risk values that were, on average, 5% higher than the experienced group. This study has been successful at pinpointing which box parameters are worthy of consideration to include in a food distribution environment for the purposes of reducing the risk of work-related LBD.

scholarly journals ANALISIS FAKTOR PENYEBAB KESULITAN BELAJAR MATEMATIKA DI SEKOLAH DASAR

2020 ◽  
Vol 1 (1) ◽  
Author(s):  
Silvia Tri Anggraeni ◽  
Sri Muryaningsih ◽  
Asih Ernawati
Keyword(s):  
Learning Strategies ◽  
Spatial Perception ◽  
Internal Factors ◽  
Document Collections ◽  
Visual Spatial ◽  
Learning Mathematics ◽  
Attitude Learning ◽  
Learning Interest ◽  
Student’S Attitude

Abstract. This research was conducted in grade IV of SD Negeri 2 Penambongan and was aimed at investigating the characteristics of students' learning difficulties, the factors causing difficulties in learning Mathematics, and the efforts conducted to resolve the difficulties of learning Mathematics. This research applied the qualitative approach with a case study design. The participants of the research were principal, class teacher, three grade IV students (chosen by the teacher's recommendation), and parents. The data were collected through observations, interviews, and document collections. The results of the data analysis showed that 1) the characteristics of difficulties in learning Mathematics experienced by the students was the abnormality of visual-spatial perception, 2) the internal factors causing difficulties in learning Mathematics were student's attitude, learning interest, motivation, and ability of sensing, while the external factors causing difficulties in learning Mathematics were learning strategies, learning aid, family, and society, 3) the efforts conducted by teachers to resolve the difficulties in learning Mathematics were motivating and supporting students when finding difficulties, the efforts conducted by students were joining extra courses out of school, and the efforts conducted by parents were motivating and accompanying their children when studying at home.

scholarly journals Preparing Teens for Success: Building 21st Century Skills through a 4-H Work-Based Learning Program

2008 ◽  
Vol 3 (1) ◽  
pp. 25-May ◽  
Author(s):  
Theresa M. Ferrari ◽  
Nate Arnett ◽  
Graham Cochran
Keyword(s):  
Performance Appraisal ◽  
Work Experience ◽  
Learning Program ◽  
Self Assessment ◽  
Job Experience ◽  
Extension Educators ◽  
Written Comments ◽  
Learning Programs ◽  
Workforce Skills ◽  
And Training

There is widespread concern that youth lack the skills essential for job success and are entering the workplace unprepared. To address issues of workforce preparation, Extension educators at an urban 4-H education center created the Job Experience and Training (JET) program, a work-based learning program for teens. JET is conducted over a six-month period, culminating in an eight-week summer work experience in collaboration with a local park district. Supervisors and teens completed a performance appraisal measure based on SCANS workforce skills at two points during the program. Both teens and supervisors provided written comments addressing teens’ strengths and areas for growth, as well as comments on their satisfaction with the program itself. Overall, the experience appears to have produced improvements in teens’ workforce skills, as evidenced by their own self-assessment and that of their supervisors. We conclude with implications for conducting work-based learning programs.

scholarly journals Dispositional Positive Emotions and Employee Engagement in University Teachers: Mediating Role of Appreciative Inquiry

2020 ◽  
Vol 35 (3) ◽  
pp. 577-594
Author(s):  
Iqra Ameer ◽  
Aisha Zubair
Keyword(s):  
Employee Engagement ◽  
Appreciative Inquiry ◽  
Work Experience ◽  
Positive Emotions ◽  
Positive Association ◽  
University Teachers ◽  
Job Experience ◽  
Work Related ◽  
Mediating Role

The present research was conducted to explore the role of dispositional positive emotions and appreciative inquiry in employee engagement among university teachers and mediating role of appreciative inquiry in predicting employee engagement from positive dispositional emotions. A convenient sample (N = 237) of university teachers including both men and women with age ranged from 29 to 54 years (mean age = 39.22) was acquired. The major constructs of the study were assessed with Dispositional Positive Emotions Scale (Shiota, Keltner, & John, 2006), Appreciative Inquiry Scale (Clayton, 2015), and Employee Engagement Survey (Wilson, 2009). Results showed that dispositional positive emotions were positively associated with appreciative inquiry and employee engagement, while appreciative inquiry displayed positive association with employee engagement. Appreciative inquiry mediated the relationship between dispositional positive emotions and employee engagement. Findings further showed significant gender differences indicating that women were high on positive dispositional emotions, appreciative inquiry and employee engagement as compared to men. Group differences on job experience showed that employees with more work experience exhibited better dispositional positive emotions, appreciative inquiry, and work related engagement as compared to other groups. 2x2x3 analysis revealed that women teachers with more work experience displayed more dispositional positive emotions, appreciative inquiry and employee engagement.

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