Dynamic visual attention characteristics and their relationship to match performance in skilled basketball players

PeerJ ◽

10.7717/peerj.9803 ◽

2020 ◽

Vol 8 ◽

pp. e9803

Author(s):

Peng Jin ◽

Xiawen Li ◽

Bin Ma ◽

Hongbo Guo ◽

Zhongxi Zhang ◽

...

Keyword(s):

College Students ◽

Visual Attention ◽

Object Tracking ◽

Visual Tracking ◽

Tracking Performance ◽

Basketball Players ◽

Target Number ◽

Target Speed ◽

The Difference ◽

The Relationship

Background Dynamic visual attention is important in basketball because it may affect the performance of players and thus the match outcome. The goals of this study were to investigate the difference in dynamic visual attention characteristics between highly skilled basketball players and nonathletic college students and to explore the relationship between visual attention and game-related performance among the basketball players. Methods In total, 24 highly skilled basketball players and 24 nonathletic college students participated in a multiple object tracking task. The task was conducted so that either the number of targets that were visually tracked or the speed at which a given number of tracked targets moved was altered to examine the difference in dynamic visual attention characteristics between the basketball players and nonathletic college students. The relationship between visual tracking speed (VTS) and game-related statistics, including assists, steals, mistakes, fouls and points scored recorded for every match during the season, was assessed among the basketball players by using Pearson correlations. Results A significant main effect of target tracking load was observed (P < 0.001), with visual tracking performance significantly decreased as target number increased. In addition, the speed at which the targets moved had a significant effect on visual tracking performance (P < 0.001), with tracking performance significantly decreased as target speed increased. However, no significant difference was observed in the abilities of basketball players and nonathletic college students to simultaneously track up to six targets. By contrast, a significant interaction between group and target speed was found (P < 0.001), with the visual tracking accuracy of basketball players significantly greater than that of college students at the higher target speeds examined (P < 0.001). Among basketball players, there were positive, large, and statistically significant correlations in the accuracy in VTS trials and the number of assists (P < 0.001) and between the accuracy in VTS trials and the number of steals (P < 0.001). Conclusion The advantage of skilled basketball players to handle dynamic visual information in a multiple object tracking task was not attributable to the target number but to the target speed. Those athletes with greater dynamic visual attention were more likely to successfully assist or to steal the ball, enhancing performance of the athlete as well as contributing to a more successful team match. These findings may inform basketball training programs to improve player and team performances during matches.

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Research on General Self-Efficacy and Test Anxiety of Normal University Students

World Journal of Educational Research ◽

10.22158/wjer.v5n2p191 ◽

2018 ◽

Vol 5 (2) ◽

pp. 191 ◽

Cited By ~ 1

Author(s):

Jian Tang ◽

Qingmin Sun

Keyword(s):

College Students ◽

University Students ◽

Test Anxiety ◽

Self Efficacy ◽

Significant Negative Correlation ◽

Significant Difference ◽

Normal University ◽

The Difference ◽

The Relationship ◽

General Self Efficacy

<p><em>The general self-efficacy scale and test anxiety scale are utilized for the questionnaire survey among 188 normal university students. The relationship between their general self-efficacy and test anxiety, the difference of general self-efficacy in gender and major, and difference of test anxiety in gender and major are discussed. The results indicate that there is a significant negative correlation between general self-efficacy and test anxiety of normal college students; there is a significant difference in gender and major for general self-efficacy; there is no significant difference in gender but in major for test anxiety.</em></p>

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Comparison of In-the-Ear and Over-the-Ear Hearing Aid Fittings

Journal of Speech and Hearing Disorders ◽

10.1044/jshd.5104.362 ◽

1986 ◽

Vol 51 (4) ◽

pp. 362-369 ◽

Cited By ~ 4

Author(s):

Donna M. Risberg ◽

Robyn M. Cox

Keyword(s):

Hearing Aids ◽

High Frequency ◽

Comparative Evaluation ◽

Speech Intelligibility ◽

Hearing Aid ◽

Hearing Aid Fitting ◽

The Difference ◽

Functional Gain ◽

The Relationship

A custom in-the-ear (ITE) hearing aid fitting was compared to two over-the-ear (OTE) hearing aid fittings for each of 9 subjects with mild to moderately severe hearing losses. Speech intelligibility via the three instruments was compared using the Speech Intelligibility Rating (SIR) test. The relationship between functional gain and coupler gain was compared for the ITE and the higher rated OTE instruments. The difference in input received at the microphone locations of the two types of hearing aids was measured for 10 different subjects and compared to the functional gain data. It was concluded that (a) for persons with mild to moderately severe hearing losses, appropriately adjusted custom ITE fittings typically yield speech intelligibility that is equal to the better OTE fitting identified in a comparative evaluation; and (b) gain prescriptions for ITE hearing aids should be adjusted to account for the high-frequency emphasis associated with in-the-concha microphone placement.

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Relationship between total plasma homocysteine and the risk of aneurysms – a meta-analysis

VASA ◽

10.1024/0301-1526/a000891 ◽

2020 ◽

pp. 1-6

Author(s):

Hanji Zhang ◽

Dexin Yin ◽

Yue Zhao ◽

Yezhou Li ◽

Dejiang Yao ◽

...

Keyword(s):

Large Scale ◽

Meta Analysis ◽

Single Species ◽

Total Plasma ◽

Control Groups ◽

Randomized Controlled ◽

Randomized Controlled Studies ◽

The Difference ◽

The Relationship ◽

Healthy Participants

Summary: Our meta-analysis focused on the relationship between homocysteine (Hcy) level and the incidence of aneurysms and looked at the relationship between smoking, hypertension and aneurysms. A systematic literature search of Pubmed, Web of Science, and Embase databases (up to March 31, 2020) resulted in the identification of 19 studies, including 2,629 aneurysm patients and 6,497 healthy participants. Combined analysis of the included studies showed that number of smoking, hypertension and hyperhomocysteinemia (HHcy) in aneurysm patients was higher than that in the control groups, and the total plasma Hcy level in aneurysm patients was also higher. These findings suggest that smoking, hypertension and HHcy may be risk factors for the development and progression of aneurysms. Although the heterogeneity of meta-analysis was significant, it was found that the heterogeneity might come from the difference between race and disease species through subgroup analysis. Large-scale randomized controlled studies of single species and single disease species are needed in the future to supplement the accuracy of the results.

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Multiple-Object Tracking

Experimental Psychology (formerly Zeitschrift für Experimentelle Psychologie) ◽

10.1027/1618-3169/a000085 ◽

2011 ◽

Vol 58 (3) ◽

pp. 196-200 ◽

Cited By ~ 15

Author(s):

K. Botterill ◽

R. Allen ◽

P. McGeorge

Keyword(s):

Object Tracking ◽

Cognitive Processes ◽

Spatial Location ◽

Multiple Object Tracking ◽

Tracking Performance ◽

Multiple Object

The Multiple-Object Tracking paradigm has most commonly been utilized to investigate how subsets of targets can be tracked from among a set of identical objects. Recently, this research has been extended to examine the function of featural information when tracking is of objects that can be individuated. We report on a study whose findings suggest that, while participants can only hold featural information for roughly two targets this task does not affect tracking performance detrimentally and points to a discontinuity between the cognitive processes that subserve spatial location and featural information.

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