Shape recognition in infancy: visual integration of sequential information

To investigate the integration of visual information across space and time, infants watched the contour of a shape being traced out by a moving point source of light and then viewed 2 objects: 1 with the shape they had just seen traced and 1 with a novel shape. In the first study, which varied the number of tracings (velocity about 16.7 cm/sec), 12-month-olds looked longer at the novel object in all conditions, indicating that they recognized the similarity between the alternative object and tracing of like contour. Study 2, which varied velocity (14.7 and 7.4 cm/sec), stimuli, and the number of tracings, provided evidence for the generalizability of these results but indicated that performance suffered at the slower speed. Studies 3 and 4 held velocity constant (14.7 cm/sec) while varying the size of the tracings and age of the infant: 12-month-olds, but not 6-month-olds, recognized figures in instances where it took up to 10 sec to complete a single tracing. Because it took so long to complete many of the tracings, central rather than purely retinal mechanisms appear to be involved in integrating shape in these situations.     

Visual Learning and the Brain: Implications for Dyslexia

ABSTRACT— The central and peripheral visual fields are structurally segregated in the brain and are differentiated by their anatomical and functional characteristics. While the central field appears well suited for tasks such as visual search, the periphery is optimized for rapid processing over broad regions. People vary in their abilities to make use of information in the center versus the periphery, and we propose that this bias leads to a trade-off between abilities for sequential search versus contemporaneous comparisons. The parameter of periphery-to-center ratio (PCR) describes the degree of peripheral bias, which evidence suggests is high in many people with dyslexia. That is, many dyslexics favor the peripheral visual field over the center, which results in not only search deficits but also (more surprisingly) talents for visual comparison. The PCR framework offers a coherent explanation for these seemingly contradictory observations of both deficit and talent in visual processing. The framework has potential implications for instructional support in visually intensive domains such as science and mathematics.     

Keiyo Cattle Raiding, Kechui Mathematics and Science Education: What do They Have in Common?

In the context of globalization, indigenous educational systems of endangered cultures are faced with extinction. Biologists recognize that biodiversity is dependent upon sustaining and promoting knowledge and values of indigenous cultures. Education researchers have a similar responsibility — to promulgate educational diversity before several thousand years of valuable educational knowledge is extirpated. This paper presents the Keiyo of Kenya who have a rich educational system. Its focus is on an indigenous game, Kechui (using calculations to sharpen your mind), based on cattle raiding, and the Keiyos' use of the game for learning mixed strategy-based probabilistic problem solving. Kechui may also have international potential for teaching probabilistic problem solving in contemporary mathematics and science, especially genetics.     

“Blockers” do not block recall during tip-of-the-tongue states

Tip-of-the-Tongue experiences (TOTs) are often accompanied by incorrect answers (blockers) that come to mind persistently and seem to block recall. According to the blocking hypothesis, blockers cause retrieval difficulty during TOTs. We predicted that delay would allow participants to forget their blockers, and thereby enhance TOT resolution. In Experiment 1 participants were asked trivia questions and then retested on the ones that elicited TOTs, either immediately or after a delay. There was an incubation effect overall, with greater TOT resolution after a delay than on an immediate test. Contrary to the blocking hypothesis, however, delay did not enhance resolution of blocked TOTs more than non-blocked TOTs. In Experiment 2, during the retest, participants were reminded of their previous blockers on some questions, but the reminders did not affect TOT resolution. These findings suggest that blockers may be a side effect, not a cause, of retrieval difficulty during TOTs. This paper is based on the first author’s Master’s thesis.     

Lifelong learning and the reform of the teaching practicum in Australia

This paper reports the findings of a project—‘Lifelong learning and teacher education’—undertaken by the Centre for Lifelong Learning, Australian Catholic University, under the auspices of the Australian Commonwealth Department of Education, Science and Training. The study was designed to investigate the operationalization of lifelong learning in Australian teacher education. The study revealed that there is a range of existing, innovative practices regarding partnerships between schools and higher and further education that are in keeping with emerging ideas about lifelong learning. Moreover, some of these take the form of collaborative action research projects focused on improving the learning occurring in the partnership schools. This paper describes some current approaches in Australia to collaborative action research by teacher educators' and their partnership schools and shows how they contribute to lifelong learning. The approaches are then analyzed to suggest ways of advancing lifelong learning within Australian Education Faculties thus helping to make lifelong learning more of a reality for all.     

Special and mainstream school collaboration for the promotion of inclusion

The Green Paper Excellence for All Children ( DfEE, 1997 ) set out an agenda for the future of special needs provision which was further endorsed by Meeting Special Educational Needs: A Programme for Action ( DfEE, 1998 ). Amongst the recommendations made within these documents was a reappraisal of the role of special schools to support increased opportunities for inclusion. This paper reports on research conducted in one English local education authority (LEA) to examine an approach to develop greater links between a special school and a number of mainstream schools, with the intention of enabling pupils with complex needs to be supported in mainstream classrooms. The research focused upon the procedures which had been developed to support pupils through a period of transition from segregated to mainstream education, and considered those conditions which had been created in order that inclusion might succeed.     

QUALITY INDICES FOR FACULTY EVALUATION

This paper investigates procedures and criteria for the evaluation of faculty in higher education. It first surveys the different indices currently in use for evaluating research, teaching and service activities. It then discusses the use of these criteria in view of the shifting framework of evaluation in the university from that based on promotion and tenure decisions to one which is based on institutional review. Finally, conditions for the success of faculty evaluation are outlined. These include evaluation procedures that are consultative in nature, the specification of criteria and standards, and an emphasis on the critical role of faculty in evaluation and in becoming evaluators themselves.