Driver’s Psychophysical Performance at Urban Tunnel

2014 ◽  
Vol 641-642 ◽  
pp. 871-880
Author(s):  
Qian Xu ◽  
Fei Shao ◽  
Tang Yi Guo ◽  
Lu Lu Luo

The objective of this work is to investigate how driving performance is varied in psychophysical phenomenon in urban tunnel. Twelve drivers participated in the real road experiments study, and they were classified into three groups according to age and gender. In experiments, by using the physiology recording instrument and Tobii Studio eye tracker system, the heart rate (HR) and eye movement, the pupillary change of the drivers at the entrance and exit of urban tunnel were separately investigated. Experimental results indicate that drivers’ performance while driving through an entrance and an exit are highly variable at speed, at HR increasing rate, and pupil diameter increasing rate. Middle-aged females and older-aged males are more sensitive to tunnel environment than middle-aged males. There is non-significant effect of tunnel zone on the visual scanning for all the drivers in this study.

2019 ◽  
Vol 13 (1) ◽  
pp. 170-176
Author(s):  
Hisayoshi Tachihara ◽  
Junichiro Hamada

Background: The rib cage, such as the thoracic spine and ribs, influences glenohumeral mobility and the development of shoulder disorders. Objective: To evaluate movements of the ribs, thoracic vertebrae during bilateral arm elevation and to clarify the characteristic influences of age and gender. Methods: Subjects comprised 33 healthy individuals divided into a young group (10 males, 7 females; mean age, 25 years) and a middle-aged group (8 males, 8 females; mean age, 52 years). Chest CT was performed with two arm positions: arms hanging downwards; and arms elevated at 160°. Images were three-dimensionally reconstructed to evaluate rib movement, extension angle of thoracic vertebrae. Results: Maximal movement was observed at the fifth rib, and rib movement decreased with increasing distance from the fifth rib in both the groups. In males, movement of the second to fourth ribs was smaller in the middle-aged group than in the young group (p < 0.05). Movement of the first to ninth ribs was smaller in females than in males (p < 0.05). No significant difference in the extension angle of the thoracic vertebrae was found. Conclusion: Fifth rib movement is the largest among all ribs during bilateral arm elevation. Reduction of upper rib movement initially arises as an age-related degradation in males. Women exhibit less rib movement during bilateral arm elevation.


1998 ◽  
Vol 12 (4) ◽  
pp. 253-257 ◽  
Author(s):  
F Jaquet ◽  
IB Goldstein ◽  
D Shapir

2011 ◽  
Vol 18 (4) ◽  
pp. 192-203 ◽  
Author(s):  
Pearl Ghaemmaghami ◽  
Mathias Allemand ◽  
Mike Martin

2011 ◽  
Vol 45 (6) ◽  
pp. 540-541
Author(s):  
A. Masala ◽  
A. Bajraktarevic ◽  
M. Miokovic ◽  
M. Omerovic ◽  
A. Rovcanin ◽  
...  

2008 ◽  
Vol 26 (7) ◽  
pp. 1411-1419 ◽  
Author(s):  
Sebastian J Vermeersch ◽  
Ernst R Rietzschel ◽  
Marc L De Buyzere ◽  
Dirk De Bacquer ◽  
Guy De Backer ◽  
...  

2012 ◽  
Vol 24 (6) ◽  
pp. 895-901 ◽  
Author(s):  
Ehud Bodner ◽  
Yoav S. Bergman ◽  
Sara Cohen-Fridel

ABSTRACTBackground: Ageism, a form of prejudice in which one relates negatively to people due to their age, exists throughout life. However, no attempt has been made to compare ageist attitudes across the life cycle, from young adulthood to old age. Consequently, the current study examined age and gender differences in ageism throughout adulthood.Methods: 955 Israeli participants (age range: 18–98 years) were divided into three age-groups: young (18–39), middle-aged (40–67), and old (68–98), and were administered the Fraboni Scale of Ageism. Age and gender differences were examined both for the three groups and for subgroups within the older adult cohort.Results: Multivariate analysis of variance revealed that middle-aged participants were significantly more ageist than younger and older groups. Across all age groups, men exhibited more avoidance and stereotypical attitudes toward older adults than women. Among the old age group, participants aged 81–98 held more ageist stereotypes and reported more avoidance of older adults than those aged 68–73. Within the older adult cohort, gender was a significant predictor for ageist attitudes among those aged 68–73 and 81–98, but not for people aged 74–80.Conclusions: Ageism demonstrates a changing pattern across the life span. While gender differences remain stable, ageist attitudes toward growing old as we age ourselves are constantly changing. In order to gain a better understanding of ageism as a general and global phenomenon, we need to consider the role of such attitudes in different stages of life.


2012 ◽  
Vol 34 (1) ◽  
pp. 108-117 ◽  
Author(s):  
S. Vandeput ◽  
B. Verheyden ◽  
A.E. Aubert ◽  
S. Van Huffel

Author(s):  
Kamil Fijorek ◽  
Nikunjkumar Patel ◽  
Łukasz Klima ◽  
Katarzyna Stolarz-Skrzypek ◽  
Kalina Kawecka-Jaszcz ◽  
...  

2015 ◽  
Vol 58 (4) ◽  
pp. 1377-1386 ◽  
Author(s):  
Rafidah Mazlan ◽  
Joseph Kei ◽  
Cheng Li Ya ◽  
Wan Nur Hanim Mohd Yusof ◽  
Lokman Saim ◽  
...  

Purpose This study examined the effects of age and gender on wideband energy absorbance in adults with normal middle ear function. Method Forty young adults (14 men, 26 women, aged 20–38 years), 31 middle-aged adults (16 men, 15 women, aged 42–64 years), and 30 older adults (20 men, 10 women, aged 65–82 years) were assessed. Energy absorbance (EA) data were collected at 30 frequencies using a prototype commercial instrument developed by Interacoustics. Results Results showed that the young adult group had significantly lower EA (between 400 and 560 Hz) than the middle-aged group. However, the middle-aged group showed significantly lower EA (between 2240 and 5040 Hz) than the young adult group. In addition, the older adult group had significantly lower EA than the young adult group (between 2520 and 5040 Hz). No significant difference in EA was found at any frequency between middle-aged and older adults. Across age groups, gender differences were found with men having significantly higher EA values than women at lower frequencies, whereas women had significantly higher EA at higher frequencies. Conclusions This study provides evidence of the influence of gender and age on EA in adults with normal outer and middle ear function. These findings support the importance of establishing age- and gender-specific EA norms for the adult population.


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