Research Topics
| Michael A KhanSummaryAffiliation: University of Wales Country: UK Publications
|
Detail Information
Publications
Optimal control strategies under different feedback schedules: kinematic evidenceMichael A Khan
School of Sport, Health, and Exercise Sciences, University of Wales, Bangor, Gwynedd, Wales LL57 2PX, UK
J Mot Behav 34:45-57. 2002..Consistent with those findings, analysis of spatial variability at different points in the trajectory indicated that variability increased up to peak deceleration but then decreased from peak deceleration to the end of the movement...
The dual role of vision in sequential aiming movementsMichael A Khan
School of Sport, Health and Exercise Sciences, Bangor University, UK
Acta Psychol (Amst) 136:425-31. 2011..These results are discussed along the lines of the movement constraint and movement integration hypotheses...
Sequential aiming with two limbs and the one-target advantageMichael A Khan
School of Sport, Health and Exercise Sciences, Bangor University, Bangor, Gwynedd, Wales, United Kingdom
J Mot Behav 42:325-30. 2010....
The influence of response grouping on free-choice decision making in a response selection taskMichael A Khan
School of Sport, Health and Exercise Sciences, Bangor University, Bangor, Gwynedd, Wales, UK
Acta Psychol (Amst) 134:175-81. 2010..The hand effect bias was stronger than the finger effect bias. These findings are consistent with the Grouping Model (Adam, Hommel, & Umilta, 2003)...
The preparation and control of reversal movements as a single unit of actionMichael A Khan
School of Sport, Health and Exercise Sciences, Bangor University, Bangor, George Building, Bangor, Gwynedd, Wales LL57 2PZ, UK
Exp Brain Res 187:33-40. 2008..These results indicate that two-target reversal movements were organized as a single unit of action prior to response initiation...
The influence of advance information on the response complexity effect in manual aiming movementsMichael A Khan
School of Sport, Health and Exercise Sciences, University of Wales, Bangor, George Building, Bangor, Gwynedd, Wales LL57 2PX, UK
Acta Psychol (Amst) 127:154-62. 2008..The implication of these results for current models of motor programming and sequential control of aiming movements are discussed...
Inferring online and offline processing of visual feedback in target-directed movements from kinematic dataMichael A Khan
School of Sport, Health and Exercise Sciences, University of Wales Bangor, Bangor, Gwynedd, Wales LL57 2PZ, UK
Neurosci Biobehav Rev 30:1106-21. 2006....
Programming strategies for rapid aiming movements under simple and choice reaction time conditionsMichael A Khan
School of Sport, Health and Exercise Sciences, University of Wales, Bangor, UK
Q J Exp Psychol (Hove) 59:524-42. 2006..In the simple RT task, increased executive control mediated the integration between response elements through the utilization of visual feedback to facilitate the implementation of the second element...
Differences in visuomotor control between the upper and lower visual fieldsMichael A Khan
School of Sport, Health and Exercise Sciences, University of Wales, Bangor, George Building, Bangor, Gwynedd, Wales, LL57 2PX, UK
Exp Brain Res 164:395-8. 2005..These results imply that superior performance in the lower visual field was due to better utilization of visual feedback during movement execution...
The utilization of visual feedback from peripheral and central vision in the control of directionMichael A Khan
School of Sport, Health and Exercise Sciences, University of Wales, Bangor, George Building, Bangor, Gwynedd, Wales, LL57 2PX, UK
Exp Brain Res 158:241-51. 2004..Information from late in the trajectory was used offline to improve the programming of subsequent movements regardless of where this information was available in the visual field...
Online versus offline processing of visual feedback in the production of component submovementsMichael A Khan
School of Sport, Health and Exercise Sciences, University of Wales, Bangor, George Building, Holyhead Road, Bangor, Gwynedd, Wales LL57 2PX, UK
J Mot Behav 35:285-95. 2003....
Conflicting sources of spatial information in a distance-reproduction taskMichael A Khan
School of Sport, Health and Exercise Sciences, University of Wales, Bangor, George Building, Bangor, Gwynedd, LL57 2PX, Wales, UK
Exp Brain Res 145:231-8. 2002..These findings suggest that both the retrieval of previously specified endpoints and conflicts in the coding of spatial information contributed to the observed response biases in distance reproduction...
Online versus offline processing of visual feedback in the control of movement amplitudeMichael A Khan
School of Sport, Health and Exercise Sciences, University of Wales Bangor, George Building, Gwynedd, Wales, UK LL57 2PX
Acta Psychol (Amst) 113:83-97. 2003..In the 375 and 450 ms conditions, there was evidence for both online and offline control as the form of the variability profiles differed significantly between visual conditions...
The utilization of visual feedback in the control of movement direction: evidence from a video aiming taskMichael A Khan
School of Sport, Health, and Exercise Sciences, University of Wales, Bangor, Gwynedd LL57 2PX, Wales, UK
Motor Control 7:290-303. 2003..In the 250-, 350-, and 450-msec conditions, there was evidence for both online and offline control, as the form of the variability profiles differed between the vision and no vision conditions...
The reliance on visual feedback for online and offline processingGavin P Lawrence
School of Sport, Health and Exercise Sciences, Bangor University, Bangor, Gwynedd, UK
Motor Control 15:232-46. 2011..In addition, the reliance on trajectory feedback was greater compared with the endpoint feedback. It appears that the reliance on visual feedback that develops with practice was due to both online and offline processing...
Separate sources of spatial information for distance and location in rapid aiming movementsMichael A Khan
School of Sport, Health, and Exercise Sciences at the University of Wales, Bangor, Gwynedd, UK
Motor Control 6:84-103. 2002..Also, varying the initial angle of the elbow had a greater influence on the final position of the limb than initial impulse endpoints...
Internal and external focus of attention in a novice form sportGavin R Lawrence
School of Sport, Health and Exercise Sciences at Bangor University, Bangor, Gwynedd, Wales
Res Q Exerc Sport 82:431-41. 2011..The results are interpreted via an attentional capacity viewpoint and the notion that form tasks do not always contain obvious movement effects central to common coding and the constrained action hypothesis...
The Movement Kinematics and Learning Strategies Associated with Adopting Different Foci of Attention during Both Acquisition and Anxious PerformanceGavin P Lawrence
Institute for the Psychology of Elite Performance, School of Sport, Health and Exercise Sciences, Bangor University Bangor, UK
Front Psychol 3:468. 2012....
Quantifying the variability of three-dimensional aiming movements using ellipsoidsSteve Hansen
School of Sport and Exercise Sciences, Liverpool John Moores University, Liverpool, UK
Motor Control 12:241-51. 2008..This technique has the potential to extend our understanding of limb control and can be applied to practical problems such as equipment design and evaluation of movement rehabilitation...
Guiding movements with internal representations: a reach-and-grasp taskAlissa D Fourkas
School of Kinesiology, Simon Fraser University
Res Q Exerc Sport 74:165-72. 2003..The findings indicated that participants adapted their movement trajectories to compensate for the degradation of stored spatial information, when concurrent visual feedback was not available...
Determinants of offline processing of visual information for the control of reaching movementsPierre-Michel Bernier
School of Human Kinetics, The University of British Columbia, 210-6081 University Boulevard, Vancouver, V6T 1Z1 Canada
J Mot Behav 38:331-8. 2006..That finding suggests that the effectiveness with which visual feedback is processed offline is not a simple function of the amount of visual information available, but depends on how that information is presented...
The contribution of peripheral and central vision in the control of movement amplitudeGavin P Lawrence
Centre for Sport and Exercise Sciences, University of Leeds, Leeds LS2 9JT, United Kingdom
Hum Mov Sci 25:326-38. 2006..However, visual information from the central visual field was used more effectively to correct errors online compared to visual information from the peripheral visual field...
Comparing derived and acquired acceleration profiles: 3-D optical electronic data analysesSteve Hansen
Department of Kinesiology, McMaster University, Hamilton, Ontario, Canada
Behav Res Methods 39:748-54. 2007..Trajectories reduced with the total distance procedure produced the lowest root mean square error. The results are important for experimenters analyzing 3-D data post hoc and those implementing real-time manipulations...
