Prediction of memory performance in long term survivors of severe closed head injury

The Selective Reminding Procedure (SR), the California Verbal Learning Test (CVLT), and the Rivermead Behavioral Memory Test (RBMT) were administered to a group of long term ( greater than one year post-injury) closed head injury survivors. As a memory performance measure, patients obtained therapists' signatures on behavioral contracts after each hourly training module over a two week time period. All three memory tests significantly predicted behavioral contract performance. The RBMT, which was designed to reflect real world memory failures in memory impaired individuals, was a significantly better memory performance predictor than the two verbal list learning tasks. CVLT scores were not significantly better than SR procedure scores at predicting memory performance. Injury severity was significantly correlated with CVLT scores and the memory performance measure but not with RBMT or SR scores. The memory performance measure did not add significantly to the prediction of injury severity over CVLT scores. Predicting outcome, planning interventions, and assessing potential for rehabilitation may be best served by using more functionally oriented ecologically valid tests such as the RBMT.Psychology, Department o

Implications of weathering on the engineering properties of the Fuller's Earth formation

The Fuller's Earth formation is an overcon-solidated, jointed, randomly Assured, calcareous mudstone with some thin to medium, jointed argillaceous limestone bands. South of Bath, the formation contains the commercial (montmorillonite rich) Fuller's Earth bed. This Paper reviews the effect of the proportion of calcite present on the moisture content, Atterberg limits, particle size, and residual shear strength. Attention is drawn to the importance of appreciating that the calcite percentage and the clay mineralogy are both likely to change with time as a result of weathering processes. This will affect the stability of natural slopes and man-made cuttings, excavations, etc. La formation de terre à foulon est un limon compact calcaire surconsolidé jointé et fissuré au hasard qui contient des bandes de chaux argillacée jointées d'épaisseur faible ou modérée. Au sud de Bath la formation comprend la couche de terre à foulon commerciale qui est riche en montmorillonite. L'article examine l'influence de la proportion de calcite presente sur la teneur en eau, les limites d'Atterberg, la grandeur des particules et la résistance au cisaillement résiduelle. On attire L'attention sur la nécessité de comprendre qu'il est probable que le pourcentagc de calcite et la mineralogie argilleuse changeront au cours du temps ce qui entraine un processus d'effritement cela influencera la stabilité des pentes naturelles, des déblais, des excavations, etc. </jats:p