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Strathprints makes available scholarly Open Access content by researchers in the School of Education, including those researching educational and social practices in curricular subjects. Research in this area seeks to understand the complex influences that increase curricula capacity and engagement by studying how curriculum practices relate to cultural, intellectual and social practices in and out of schools and nurseries.

Research at the School of Education also spans a number of other areas, including inclusive pedagogy, philosophy of education, health and wellbeing within health-related aspects of education (e.g. physical education and sport pedagogy, autism and technology, counselling education, and pedagogies for mental and emotional health), languages education, and other areas.

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Prospective guidance in a free-swimming cell

Delafield-Butt, Jonathan and Pepping, Gert-Jan and McCaig, Colin and Lee, David (2012) Prospective guidance in a free-swimming cell. Biological Cybernetics, 106 (4-5). pp. 283-293. ISSN 0340-1200

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Abstract

A systems theory of movement control in animals is presented and applied to explaining the controlled behaviour of the single-celled Paramecium caudatum in an electric field. The theory – General Tau Theory – is founded on three basic principles: (i) all purposive movement entails prospectively controlling the closure of action-gaps (e.g. a distance gap when reaching, an angle gap when steering); (ii) the sole informational variable required for controlling gaps is the relative rate of change of the gap (the time derivative of the gap size divided by the size), which can be directly sensed; and (iii) coordinated movement is achieved by keeping the relative rates of change of gaps in constant ratio. The theory is supported by studies of controlled movement in mammals, birds, and insects. We now show for the first time that it is also supported by single-celled paramecia steering to the cathode in a bi-polar electric field. General Tau Theory is deployed to explain this guided steering by the cell. This presents the first computational model of prospective perceptual control in a non-neural, single-celled system.