scholarly journals Preliminary Study of a Physiological Evaluation Method on Attentiveness Concentration during Mental Arithmetic; Correlation between Task Performance and Physiological Indices

2007 ◽  
Vol 26 (5) ◽  
pp. 553-557 ◽  
Author(s):  
Tatsuro Tanabe ◽  
Kosuke Ikemura ◽  
Hiroko Sawai ◽  
Emi Koyama
Keyword(s):  
Task Performance ◽  
Evaluation Method ◽  
Mental Arithmetic ◽  
Physiological Indices ◽  
Preliminary Study ◽  
Physiological Evaluation

scholarly journals Performance, Movement, Posture, and Perceived Discomfort in Active vs. Static Seating

2019 ◽  
Vol 63 (1) ◽  
pp. 1154-1158
Author(s):  
Jeremy D. Faulk ◽  
Cameron C. McKee ◽  
Heather Bazille ◽  
Michael Brigham ◽  
Jasmine Daniel ◽  
...  
Keyword(s):  
Task Performance ◽  
Motor Task ◽  
Fine Motor ◽  
Future Research ◽  
Trunk Movement ◽  
Significant Difference ◽  
Within Subjects ◽  
Computer Based ◽  
Preliminary Study ◽  
Static Conditions

Active seating designs may enable users to move more frequently, thereby decreasing physiological risks associated with a sedentary lifestyle. In this preliminary study, two active seating designs (QOR360, Ariel; QOR360, Newton) were compared to a static chair (Herman Miller, Aeron) to understand how active vs. static seating may affect task performance, movement, posture, and perceived discomfort. This within-subjects experiment involved n = 11 student participants who sat upon each of the three chairs for 20 minutes while performing a series of computer-based tasks. Participants showed increased trunk movement while also reporting higher levels of perceived discomfort in the two active chair conditions. There was no significant difference in either posture or fine motor task performance between the active and static conditions. Future research may benefit from additional physiological measurements along with a wider variety of tasks that require seated users to make postural adjustments.

scholarly journals An Investigation of the Effects of Changes in the Indoor Ambient Temperature on Arousal Level, Thermal Comfort, and Physiological Indices

2019 ◽  
Vol 9 (5) ◽  
pp. 899 ◽  
Author(s):  
Jongseong Gwak ◽  
Motoki Shino ◽  
Kazutaka Ueda ◽  
Minoru Kamata
Keyword(s):  
Thermal Comfort ◽  
Ambient Temperature ◽  
Task Performance ◽  
Thermal Environment ◽  
Subjective Evaluation ◽  
Arousal Level ◽  
Mathematical Task ◽  
Physiological Indices ◽  
The Relationship ◽  
And Task

Thermal factors not only affect the thermal comfort sensation of occupants, but also affect their arousal level, productivity, and health. Therefore, it is necessary to control thermal factors appropriately. In this study, we aim to design a thermal environment that improves both the arousal level and thermal comfort of the occupants. To this end, we investigated the relationships between the physiological indices, subjective evaluation values, and task performance under several conditions of changes in the indoor ambient temperature. In particular, we asked subjects to perform a mathematical task and subjective evaluation related to their thermal comfort sensation and drowsiness levels. Simultaneously, we measured their physiological parameters, such as skin temperature, respiration rate, electroencephalography, and electrocardiography, continuously. We investigated the relationship between the comfort sensation and drowsiness level of occupants, and the physiological indices. From the results, it was confirmed that changes in the indoor ambient temperature can improve both the thermal comfort and the arousal levels of occupants. Moreover, we proposed the evaluation indices of the thermal comfort and the drowsiness level of occupants using physiological indices.

31.4: A Preliminary Study on the Frame Glare by Reflected Light for its Allowable Level and Evaluation Method

2011 ◽  
Vol 42 (1) ◽  
pp. 420-423
Author(s):  
Yuzo Hisatake ◽  
Naoaki Umezu ◽  
Chiaki Kato ◽  
Yoshihiko Nakano
Keyword(s):  
Evaluation Method ◽  
Reflected Light ◽  
Allowable Level ◽  
Preliminary Study

A Symbolic Interactionist Approach to Self-Referent Behavior

1971 ◽  
Vol 29 (1) ◽  
pp. 87-90 ◽  
Author(s):  
John C. Touhey
Keyword(s):  
Task Performance ◽  
Verbal Task ◽  
Absolute Accuracy ◽  
Symbolic Interactionist ◽  
Arithmetic Task ◽  
Preliminary Study ◽  
Accuracy Of Prediction ◽  
Interactionist Approach ◽  
Differential Access

A preliminary study designed to illustrate the determinants of accurate self-referent behavior was conducted. Ss predicted their individual performances on arithmetic, verbal, and clerical tasks. After the prediction each task was performed for 3 min. Findings were: (1) Ss predicted their verbal task performance with moderate accuracy ( r = .55, p < .01), (2) the arithmetic task was less accurately predicted ( r = .29, p < .05), and (3) the clerical task was not predicted. Ss employed consistent estimates and were consistently accurate across verbal and arithmetic tasks but not over either one of these two tasks and the clerical task. Absolute accuracy of prediction was not correlated across any task pairs. The findings are interpreted as functions of differential access to the symbolic acts required to predict one's own behavior accurately.

EEG coherence in a mental arithmetic task performance in first episode schizophrenia and schizoaffective disorder

2018 ◽  
Vol 129 (11) ◽  
pp. 2315-2324 ◽  
Author(s):  
Yuliya Zaytseva ◽  
Zhanna Garakh ◽  
Vladimir Novototsky-Vlasov ◽  
Isaac Ya. Gurovich ◽  
Alexander Shmukler ◽  
...  
Keyword(s):  
Task Performance ◽  
Schizoaffective Disorder ◽  
Mental Arithmetic ◽  
First Episode ◽  
Eeg Coherence ◽  
Arithmetic Task ◽  
Mental Arithmetic Task ◽  
First Episode Schizophrenia
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