Browsing by Author "Anju L. Singh"

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Does caffeine-induced arousal reduce mental workload during high-demanding vigilance task?
(2011) Trayambak Tiwari; Anju L. Singh; Indramani L. Singh
This paper investigates whether or not caffeine-induced arousal reduces mental workload of high - demanding vigilance task. Thirty students of Banaras Hindu University (14 men, 16 women, age range: 19-26 years) participated in this study. A 2 (Mental workload: Pre and Post) × 4 (Treatment conditions: placebo, 100mg, 150mg, 200mg) factorial design with repeated measure on last factor was used. NASA-Task Load Index scale was used before (pre-session) and after (post-session) final sessions for the assessment of mental workload associated with the vigilance task. Perceptual sensory task in the shape of square was used as the vigilance task. Participants were required to detect infrequently occurring critical signals. The task was designed on SuperLab® 4.0 and displayed through a 15quot; colour monitor. The obtained post weighted mean scores on global mental workload revealed that participants of placebo condition perceived high workload than did any of the three caffeine conditions. These weighted mean scores of global mental workload with regard to treatment conditions suggested caffeine benefit occurring differently from pre- to posttask sessions. © Journal of the Indian Academy of Applied Psychology.
Effect of aerobic exercise on reaction time during vigilance task performance
(Indian Academy of Applied Psychology, 2017) Naveen; Tarun Mishra; Trayambak Tiwari; Indramani Lal Singh; Anju L. Singh; Tara Singh
Physical exercise has been linked to mental health benefits. However, little is known about how physical exercise affects cognitive functioning. Results obtained from laboratory studies on the effect of physical exercise on cognitive performance has been inconsistent. The present study examined the effect of different level of aerobic exercise on visual vigilance task performance. Thirty three male participants in the age range of 19 to 24 years participated in this study. A 3 (Exercise Protocols: No exercise, 7 minutes, 14 minutes) ×4 (Time Periods: Four 10 minutes block) mixed factorial design with repeated measure on the last factor was used. The analysis of variance results revealed a significant difference between vigilance task performance of the groups (p = 0.001). The performance of the group with 14 minutes exercise protocol was more inhibited than the performance of the groups with 7 minutes and no exercise. The findings have been discussed in terms of resource depletion theory of Kahneman (1973). © 2016 Journal of the Indian Academy of Applied Psychology.
Monitoring performance and mental workload in an automated system
(Springer Verlag, 2007) Indramani L. Singh; Anju L. Singh; Proshanto K. Saha
Human performance in computer-aided system has engrossed inevitably human issues in cognitive functioning. The present endeavor focuses on the associated influence of training, automation reliability on the monitoring performance and workload in multi-task ambience. MAT battery was utilized with engine-system monitoring, two dimensional tracking, and fuel resource management tasks were the concerned elements, in which only system engine-monitoring task was automated in the training as well as in the final test sessions. A 2 × 2 × 2 × 3, mixed factorial design was employed. Monitoring performance, false alarms, reaction time and root mean square error performance were recorded as dependent measures. Results revealed that automation-induced complacency might be the feature of multi-task condition where subjects detected automation failures under high static system reliability. Results further showed that mental workload significantly reduced from pre- to post-sessions. © Springer-Verlag Berlin Heidelberg 2007.
Role of Workplace Spirituality, Empathic Concern and Organizational Politics in Employee Wellbeing: A Study on Police Personnel
(Frontiers Media S.A., 2022) Shreshtha Yadav; Trayambak Tiwari; Anil Kumar Yadav; Neha Dubey; Lalit Kumar Mishra; Anju L. Singh; Payal Kapoor
Employee wellbeing as a central aspect of organizational growth has been widely regarded and accepted. Therefore, a considerable growth in the number of researches focusing on employee wellbeing has been comprehended in recent years. Employee wellbeing characterizes the individual’s own cognitive interpretation of his/her life at work. The present study made an attempt to examine how workplace spirituality, empathic concern and organizational politics influences employee wellbeing. It was hypothesized that empathic concern mediates the relationship between workplace spirituality and employee wellbeing while organizational politics act as a moderator in this relationship. A survey was conducted on 253 employees working in Uttar Pradesh Police department (Uttar Pradesh, India). The results obtained revealed that workplace spirituality, empathic concern and employee wellbeing carries a positive association among them whereas these variables were found to be negatively correlated with organizational politics. Results also depicted that empathic concern significantly mediates between workplace spirituality and employee wellbeing. Further, moderated mediation analysis confirmed employee wellbeing as a function of workplace spirituality, empathic concern and organizational politics. The present study has put forward several practical implications for business practitioners and research directions for academicians, emphasizing upon the need to investigate the comprehensive impact of employee wellbeing in organization and the society as a whole. Copyright © 2022 Yadav, Tiwari, Yadav, Dubey, Mishra, Singh and Kapoor.