scholarly journals Movement kinematics and their relationship with performance in target acquisition task using a mouse

2007 ◽  
Author(s):  
Yuen-Keen Cheong ◽  
Randa L. Shehab ◽  
Chen Ling
Author(s):  
Yuen-Keen Cheong ◽  
Randa L. Shehab ◽  
Chen Ling

Movement kinematics has been shown useful for characterizing the process of aiming movement in target acquisition tasks. There are multiple kinematic measures reported in the literature, but their relationship to eventual performance is not well documented. To determine the relationship between various kinematic measures and movement performance, data were collected from participants aged 21 to 90 years with a wide range of psychomotor ability. When computed across age groups, time to peak velocity (TPV), time to peak acceleration (TPA), and time from peak velocity until the end of movement (TPVEND) were found to correlate with movement performance. However, the relationships diminished when the correlations were computed within age groups (except for TPVEND). More interestingly, despite the extensive report, certain kinematic measures such as peak velocity were found to be uncorrelated with performance. Thus, when performance is the focus, improvement should be made to reduce TPV, TPA, and TPVEND.


Author(s):  
Alan F. Stokes ◽  
James A. Pharmer ◽  
Aysenil Belger

Attentional biases in stressed or overworked radar operators (airborne or in Combat Information Centers, etc.) may have important operational implications. This study examined the effects of workload and non-workload-related stress on salience bias in a screen-based target selection and engagement task. Results in the control condition confirmed that appreciable baseline salience bias existed. Moreover, in the non-task-related stress condition (noise/anxiety), a significant increase in salience bias was observed. Elevated workload, in contrast, was associated with no significant changes in salience bias. Overall, the results showed stable individual differences in salience bias and suggested that non-workload related stress influenced ‘high bias’ individuals proportionately more than ‘low bias’ individuals-an outcome with potential implications for selection. Subjects were also significantly biased toward the left hemispace, a powerful effect that remained even after the experiment was repeated using subjects’ left instead of right hands.


Author(s):  
Chao Wang ◽  
Bahram Ravani

A control theoretic alternative to Fitts’ Law based on a modified crossover model is proposed. A physical interpretation of the model offers the unification of various different formulations of Fitts’ Law. Model identification and validation is carried out for a target acquisition task using a touchscreen. A brief treatment of noise generated by random relative movement between the human operator and the touchscreen (such as in-vehicle touchscreen based devices) is considered using the proposed model.


2007 ◽  
Author(s):  
Rachael L. Westergren ◽  
Paul R. Havig ◽  
Eric L. Heft

1982 ◽  
Vol 12 (4) ◽  
pp. 529-538 ◽  
Author(s):  
Richard A. Miller ◽  
Richard J. Jagacinski ◽  
Rajendra B. Nalavade ◽  
Walter W. Johnson

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