Social and Behavioral Sciences Commons^™

Comparison Of Alternative Models For Personality Disorders, Leslie C. Morey, Christopher J. Hopwood, John G. Gunderson, Andrew E. Skodol, M. Tracie Shea, Shirley Yen, Robert L. Stout, Mary C. Zanarini, Carlos M. Grilo, Charles A. Sanislow, Thomas H. Mcglashan

Charles A. Sanislow, Ph.D.

BACKGROUND: The categorical classification system for personality disorder (PD) has been frequently criticized and several alternative dimensional models have been proposed.

METHOD: Antecedent, concurrent and predictive markers of construct validity were examined for three models of PDs: the Five-Factor Model (FFM), the Schedule for Nonadaptive and Adaptive Personality (SNAP) model and the DSM-IV in the Collaborative Study of Personality Disorders (CLPS) sample.

RESULTS: All models showed substantial validity across a variety of marker variables over time. Dimensional models (including dimensionalized DSM-IV) consistently outperformed the conventional categorical diagnosis in predicting external variables, such as subsequent suicidal gestures and hospitalizations. FFM facets …

Temporal Organization Of Eating In Low- And High- Saccharin-Consuming Rats., Clinton Chapman, Nancy Dess, Jocelyn Richard, Susan Severe

Clinton D Chapman

When, where, and how much animals eat are influenced by food scarcity and risk of predation. The present study concerned the mediation of risk-related feeding patterns by emotion. Occidental Low-saccharin- consuming (LoS) and High-saccharin-consuming (HiS) rats, which differ in both ingestion and emotionality, were studied in three steady-state paradigms: an "open economy" procedure (discrete session cyclic-ratio operant schedule) and two "closed economy" procedures (meal patterning, free feeding with running wheel access). Cyclic-ratio performance showed better defense of stable food intake against variable cost among LoS rats. In closed economies, LoS rats consumed a larger number of smaller meals and showed …