Cognitive Behavioral Therapy Commons^™

Causal Influence Of Linguistic Learning On Perceptual And Conceptual Processing: A Brain-Constrained Deep Neural Network Study Of Proper Names And Category Terms, Phuc T U Nguyen, Malte R Henningsen-Schomers, Friedemann Pulvermüller

Faculty and Staff Publications

Language influences cognitive and conceptual processing, but the mechanisms through which such causal effects are realized in the human brain remain unknown. Here, we use a brain-constrained deep neural network model of category formation and symbol learning and analyze the emergent model's internal mechanisms at the neural circuit level. In one set of simulations, the network was presented with similar patterns of neural activity indexing instances of objects and actions belonging to the same categories. Biologically realistic Hebbian learning led to the formation of instance-specific neurons distributed across multiple areas of the network, and, in addition, to cell assembly circuits …

Delirium Reduction Strategies For The Critically Ill, June Chaves, Sam Canonico, Will Cheney, Tammy Corey, Gil Fraser, Alex Kowalewski, Jen Low, Cardiac Intensive Care Unit, Haley Pelletier, Cathy Palleschi, Stephen Tyzik, Suneela Nayak, Ruth Hanselman

MaineHealth Maine Medical Center

Delirium, an acute and fluctuating disturbance of consciousness and cognition, is a common manifestation of acute brain dysfunction in critically ill patients. Patients with delirium have longer hospital stays and a lower 6-month survival rate than do patients without delirium. Preliminary research suggests that delirium may be associated with cognitive impairment that persists months to years after discharge.

In a large acute care hospital, the cardiac intensive care staff became interested in mitigating their unit’s high delirium rate of ventilated patients. At baseline, many members of the healthcare team did not believe that delirium could be prevented and the predominant …