Task Duration Estimation

2019 ◽  
Author(s):  
Ryen W. White ◽  
Ahmed Hassan Awadallah
Keyword(s):  
Task Duration ◽  
Duration Estimation

Improving time duration estimation with training on working memory

2012 ◽  
Author(s):  
Yoshihiro S. Okazaki ◽  
Yukio Tsuchida ◽  
Masamichi Yuzawa ◽  
Keigo Minakuchi ◽  
Nozomi Notsuyama ◽  
...  
Keyword(s):  
Working Memory ◽  
Time Duration ◽  
Duration Estimation

An Arrival Time and Duration Estimation of a Signal

2000 ◽  
Vol 54 (8-9) ◽  
pp. 122-133
Author(s):  
Andrey Pavlovich Trifonov ◽  
Yurii Eduardovich Korchagin
Keyword(s):  
Arrival Time ◽  
Duration Estimation

scholarly journals Factors associated with dynamic balance in people with Persistent Postural Perceptual Dizziness (PPPD): a cross-sectional study using a virtual-reality Four Square Step Test

2021 ◽  
Vol 18 (1) ◽  
Author(s):  
Moshe M. H. Aharoni ◽  
Anat V. Lubetzky ◽  
Liraz Arie ◽  
Tal Krasovsky
Keyword(s):  
Virtual Reality ◽  
Trait Anxiety ◽  
Dynamic Balance ◽  
Step Test ◽  
Simulator Sickness ◽  
Balance Confidence ◽  
Task Duration ◽  
Head Kinematics ◽  
Perceived Disability ◽  
Four Square

Abstract Background Persistent postural-perceptual dizziness (PPPD) is a condition characterized by chronic subjective dizziness and exacerbated by visual stimuli or upright movement. Typical balance tests do not replicate the environments known to increase symptoms in people with PPPD—crowded places with moving objects. Using a virtual reality system, we quantified dynamic balance in people with PPPD and healthy controls in diverse visual conditions. Methods Twenty-two individuals with PPPD and 29 controls performed a square-shaped fast walking task (Four-Square Step Test Virtual Reality—FSST-VR) using a head-mounted-display (HTC Vive) under 3 visual conditions (empty train platform; people moving; people and trains moving). Head kinematics was used to measure task duration, movement smoothness and anterior–posterior (AP) and medio-lateral (ML) ranges of movement (ROM). Heart rate (HR) was monitored using a chest-band. Participants also completed a functional mobility test (Timed-Up-and-Go; TUG) and questionnaires measuring anxiety (State-Trait Anxiety Inventory; STAI), balance confidence (Activities-Specific Balance Confidence; ABC), perceived disability (Dizziness Handicap Inventory) and simulator sickness (Simulator Sickness Questionnaire). Main effects of visual load and group and associations between performance, functional and self-reported outcomes were examined. Results State anxiety and simulator sickness did not increase following testing. AP-ROM and HR increased with high visual load in both groups (p < 0.05). There were no significant between-group differences in head kinematics. In the high visual load conditions, high trait anxiety and longer TUG duration were moderately associated with reduced AP and ML-ROM in the PPPD group and low ABC and  high perceived disability were associated with reduced AP-ROM (|r| =  0.47 to 0.53; p < 0.05). In contrast, in controls high STAI-trait, low ABC and longer TUG duration were associated with increased AP-ROM (|r| = 0.38 to 0.46; p < 0.05) and longer TUG duration was associated with increased ML-ROM (r = 0.53, p < 0.01). Conclusions FSST-VR may shed light on movement strategies in PPPD beyond task duration. While no main effect of group was observed, the distinct associations with self-reported and functional outcomes, identified using spatial head kinematics, suggest that some people with PPPD reduce head degrees of freedom when performing a dynamic balance task. This supports a potential link between spatial perception and PPPD symptomatology.

Effects of Sensory Modality and Task Duration on Performance, Workload, and Stress in Sustained Attention

2004 ◽  
Vol 46 (2) ◽  
pp. 219-233 ◽  
Author(s):  
James L. Szalma ◽  
Joel S. Warm ◽  
Gerald Matthews ◽  
William N. Dember ◽  
Ernest M. Weiler ◽  
...  
Keyword(s):  
Sustained Attention ◽  
Sensory Modality ◽  
Task Duration ◽  
And Task

scholarly journals Psychophysiology of duration estimation in experienced mindfulness meditators and matched controls

2015 ◽  
Vol 6 ◽  
Author(s):  
Simone Otten ◽  
Eva Schötz ◽  
Marc Wittmann ◽  
Niko Kohls ◽  
Stefan Schmidt ◽  
...  
Keyword(s):  
Duration Estimation

scholarly journals Effects of knowing the task duration on players’ pacing patterns during soccer small-sided games

2017 ◽  
Vol 36 (1) ◽  
pp. 116-122 ◽  
Author(s):  
Ricardo Ferraz ◽  
Bruno Gonçalves ◽  
Roland Van Den Tillaar ◽  
Sergio Jiménez Sáiz ◽  
Jaime Sampaio ◽  
...  
Keyword(s):  
Task Duration

Research on DSM for Simulation of Concurrent Product Development Process

2008 ◽  
Vol 44-46 ◽  
pp. 595-600
Author(s):  
Xiao Ming Qian ◽  
Dun Bing Tang
Keyword(s):  
Product Development ◽  
Development Process ◽  
Resource Competition ◽  
Time Limit ◽  
Product Development Process ◽  
Design Structure Matrix ◽  
Simulation Algorithm ◽  
Resource Model ◽  
Task Duration ◽  
Design Structure

In this paper a simulation algorithm for concurrent product development process (CPDP) is presented based on Design Structure Matrix (DSM). An aggregate DSM is used to model the CPDP. To simulate the influence on the process of the time limit and the resource competition, the schedule and resource model are established. A method is also advanced to handle task delay. At last a case is used to validate the simulation algorithm and to show the influence on the process of task duration and resource.

Expected Task Duration and Perceived Effort: An Attributional Analysis

1980 ◽  
Vol 2 (3) ◽  
pp. 227-236 ◽  
Author(s):  
Walter J. Rejeski ◽  
Paul M. Ribisl
Keyword(s):  
Perceived Exertion ◽  
Mental Fatigue ◽  
Treadmill Running ◽  
Ratings Of Perceived Exertion ◽  
Heart Rates ◽  
Task Duration ◽  
Perceived Effort ◽  
Attributional Analysis ◽  
Male Subjects

The purpose of this study was to examine the effects of anticipated task duration on ratings of perceived exertion during treadmill running. Male subjects.(N = 15) completed two separate runs on a motor-driven treadmill at 85% V02 max. During one trial, subjects ran for a period of 20 minutes, while for a second trial, subjects were led to believe that they would be running for 30 minutes. In each case, the trials were terminated at the 20-minute mark. Ratings of perceived exertion, heart rates, respiratory rates, and ventilatory minute volumes were collected across each trial. Results supported the supposition that the anticipation of continued performance mediated ratings of effort expenditure. This effect was obtained only during moderate work levels and was in contrast to research examining mental fatigue.

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