A functional magnetic resonance imaging investigation of short-term source and item memory for negative pictures
- 2 October 2006
- journal article
- research article
- Published by Ovid Technologies (Wolters Kluwer Health) in NeuroReport
- Vol. 17 (14), 1543-1547
- https://doi.org/10.1097/01.wnr.0000234743.50442.e5
Abstract
We investigated the hypothesis that arousal recruits attention to item information, thereby disrupting working memory processes that help bind items to context. Using functional magnetic resonance imaging, we compared brain activity when participants remembered negative or neutral picture-location conjunctions (source memory) versus pictures only. Behaviorally, negative trials showed disruption of short-term source, but not picture, memory; long-term picture recognition memory was better for negative than for neutral pictures. Activity in areas involved in working memory and feature integration (precentral gyrus and its intersect with superior temporal gyrus) was attenuated on negative compared with neutral source trials relative to picture-only trials. Visual processing areas (middle occipital and lingual gyri) showed greater activity for negative than for neutral trials, especially on picture-only trials.Keywords
This publication has 23 references indexed in Scilit:
- Emotional Arousal Can Impair Feature Binding in Working MemoryJournal of Cognitive Neuroscience, 2006
- Memory for specific visual details can be enhanced by negative arousing contentJournal of Memory and Language, 2006
- Memory enhancement for emotional words: Are emotional words more vividly remembered than neutral words?Memory & Cognition, 2003
- Functional Neuroanatomy of Emotion: A Meta-Analysis of Emotion Activation Studies in PET and fMRINeuroImage, 2002
- Dissociation of Verbal Working Memory System Components Using a Delayed Serial Recall TaskCerebral Cortex, 2001
- Cognitive and neural mechanisms of emotional memoryTrends in Cognitive Sciences, 2001
- Source memory enhancement for emotional words.Emotion, 2001
- Human hippocampus associates information in memoryProceedings of the National Academy of Sciences of the United States of America, 1999
- Arousal-Mediated Memory Consolidation: Role of the Medial Temporal Lobe in HumansPsychological Science, 1998
- Autobiographical memory disturbance in combat-related posttraumatic stress disorderBehaviour Research and Therapy, 1995