- About
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The Global ETD Search service is a free service for researchers
to find electronic theses and dissertations. This service is
provided by the
Networked Digital Library of Theses and Dissertations.
Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
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Showing 41 to 50 of 7949 (0.033 seconds)| 41 |
The behavioural ecology of the giant otter in GuyanaLaidler, P. E. January 1984 (has links)
No description available.
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Visual and motor processes involved in the control of collisionsMcLaughlin, Carmel Maria January 1987 (has links)
Colliding with objects in our environment is a common feature of daily activity. Skilled behaviour often involves the precise regulation of these collisions. Traditional approaches to skilled behaviour are criticised for confusing the constraints of their approach with behavioural constraints. The following investigation combines aspects of several approaches laid out in the Introductory Chapter 1 to examine the visual and motor processes involved in controlling collisions. In Chapter 2 performance is assessed in a one-handed catching task, when the physical characteristics of the ball are manipulated. The results indicate that viewing-time and the nature of grasping affect perfomance. In Chapters 3 and 4 a hitting task is used to investigate the visual processes involved in intercepting an object. Task performance is compared across monocular and binocular viewing conditions. In Chapter 3, results show that timing performance is unaffected by this manipulation and this provides support for the direct pick up of time-to-collision information. In Chapter 4, binocular information is found to be necessary for the spatial location of an object. In Chapters 5, 6 and 7, a tapping task is used to investigate the motor aspects involved in controlling a collision. In Chapter 5 force waveforms recored when tapping on a strain gauge vary in accordance with 'external' and 'internal' manipulations of load and stiffness. In Chapter 6, a mass-spring model is proposed to describe the collision. Changes in impact are related to changes in the parameters of the model. These effects are simulated on a computer. In Chapter 7, the mechanisms of effecting collision change are directly investigated from kinematic recordings. The results suggest that speed of impact is the controlled parameter. The findings are compatible with the mass-spring model. The final Chapter concludes that a multi-dimensional approach is required for a full understanding of skilled-motor behaviour. The possible applications of this approach to the assessment of clumsiness are discussed.
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Communication at playgroup : a relationships approachGreig, Anne Denise January 1992 (has links)
No description available.
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The crimes of genius : a self-report study of offending in high IQ individualsOleson, James C. January 1998 (has links)
No description available.
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Theoretical and experimental studies of the evolution of mate choiceTomlinson, Ian Philip Mark January 1989 (has links)
No description available.
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The importance of socially transmitted information in the acquisition of novel foraging skills by pigeons and canariesPalameta, Boris January 1989 (has links)
No description available.
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Relationships in playgroups : an attachment perspectiveTurner, Patricia Jane January 1989 (has links)
No description available.
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Six year olds in the school playgroundTamplin, Alison Margaret January 1989 (has links)
No description available.
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Lek-breeding in Kafue lechweNefdt, Rory John Charlton January 1992 (has links)
No description available.
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Development of parent-offspring relations in the hooded ratCapdevila, Antonio Garcia-Bellido January 1993 (has links)
No description available.
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