Our lab is concerned with cognitive functioning in normally ageing adults. We are particularly interested in factors predictive of maintenance of memory and everyday problem solving ability. Retrospective and prospective memory are being studied using cross-sectional designs. It is our contention that ageing per se is a poor predictor and other characteristics of individuals do a much better job of predicting levels of rembering and problem solving. In particular, we have confirmed the crucial role of speed of information processing and verbal ability, and more recently sensory functioning, as contributors to memory and language functions. We are also exploring an 'executive dysfunction' hypothesis of cognitive ageing. This hypothesis suggests that normal age-related deterioration in higher-order cognitive operations and strategies that subserve competent memory performance underlies the relationship between age and remembering. Some suggest these functions are located in the frontal lobes, although our interest is in the behavioural manifestations of age-related change. The facilities of the Cognitive Ageing Lab include a suite of two testing rooms, a data management room and a waiting room. Research participants are seen individually or in pairs by qualifies assistants. A Pentium Computer with touch screen provides one means of testing and gives access to all computing facilities of the University.