The perceptual-mnemonic/feature conjunction model of perirhinal cortex function

The perirhinal cortex was once thought to be “silent cortex”, virtually ignored by researchers interested in the neurobiology of learning and memory. Following studies of brain damage associated with cases of amnesia, perirhinal cortex is now widely regarded as part of a “medial temporal lobe (MTL) memory system”. This system is thought to be more or less functionally homogeneous, having a special role in declarative memory, and making little or no contribution to other functions such as perception. In the present article, we summarize an alternative view. First, we propose that components of the putative MTL system such as the hippocampus and perirhinal cortex have distinct and dissociable functions. Second, we provide evidence that the perirhinal cortex has a role in visual discrimination. In addition, we propose a specific role for perirhinal cortex in visual discrimination: the contribution of complex conjunctive representations to the solution of visual discrimination problems with a high degree of “feature ambiguity”. These proposals constitute a new view of perirhinal cortex function, one that does not assume strict modularity of function in the occipito-temporal visual stream, but replaces this idea with the notion of a hierarchical representational continuum.     

Training psychiatric teams to do family systems acute psychiatry

This article presents an account of a comprehensive eighteen‐day, multi‐team, multidisciplinary training approach to family systems inpatient acute psychiatry. It has been developed and tested as part of the SYMPA project (systems therapy in acute psychiatry), which aims to establish systemic case conceptualizations and interventions as routine practice in acute psychiatry. Content, didactic characteristics and specifications of this training are discussed. To illustrate the practical implementation of the training, specifically designed exercises are described and a clinical case is included. The article concludes by presenting first results of the research on implementation indicating that the training had a significant impact on the quantity and quality of conversations with patients.