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Tag: Associative Memory

Memory Contextualization: The Role of Prefrontal Cortex in Functional Integration across Item and Context Representational Regions

Published in: Journal of Cognitive Neuroscience, Volume 30, Issue 4, April 2018, 579-593 Abstract “Memory recall is facilitated when retrieval occurs in the original encoding context. This context dependency effect likely results from the automatic binding of central elements of an experience with contextual features (i.e., memory “contextualization”) during encoding. However, despite a vast body of research investigating the neural correlates of explicit associative memory, the neural interactions during encoding that predict implicit context-dependent memory remain unknown. Twenty-six participants underwent fMRI during encoding of salient stimuli (faces), which were overlaid onto unique background images (contexts). To index subsequent context-dependent memory, face… Read More

How Does Rumination Impact Cognition? A First Mechanistic Model

Published in: Topics in Cognitive Science, Volume 10, Issue 1, 175-191 Abstract “Rumination is a process of uncontrolled, narrowly focused negative thinking that is often self‐referential, and that is a hallmark of depression. Despite its importance, little is known about its cognitive mechanisms. Rumination can be thought of as a specific, constrained form of mind‐wandering. Here, we introduce a cognitive model of rumination that we developed on the basis of our existing model of mind‐wandering. The rumination model implements the hypothesis that rumination is caused by maladaptive habits of thought. These habits of thought are modeled by adjusting the number of… Read More