Older women exposed to higher levels of air pollution were more likely to experience greater memory decline and Alzheimer's-like brain atrophy compared with those exposed to cleaner air.
During memory formation, the directional coupling between the neocortex and hippocampus alters. Decreased power in brain oscillations in the neocortex preceded and predicted increased power in the hippocampus. The reverse occurs during memory retrieval.
Hippocampal short-wave ripples trigger spontaneous recollections and reinstate cortical representation during free recall of episodic memories.
Using brain scans and virtual reality technology, researchers discover how a temporal map of memories is generated in the entorhinal cortex.
A small scale pilot study reveals adults with mild cognitive impairment may have improved brain function and memory when they switch to a high-fat, low-carb diet.
The size and shape of neural assemblies, and not the strength of signals processed by neurons or the order in which they fire, is the most critical element of recording episodic memory.
Unexpected rewards boost memories of specific events. The findings may have implications for treating memory problems associated with depression.
Older adults who have higher levels of education, embark on more social activities and stay cognitively active have a slower rate of cognitive decline than those who engage in less self-maintenance and social activities.
Imbalanced communication between the hippocampus and amygdala may lead to the inability to distinguish between negative memories that have overlapping features. The findings could provide new treatment options for those with PTSD.
Researchers propose adapting computer technologies to help those with depression recall positive memories. Most existing technologies focused on supporting memory impairments are geared towards episodic memory recall and cognitive impairments related to neurodegenerative diseases.
Coupled ripples between the medial temporal lobe and temporal cortex are enhanced prior to successful memory retrieval.
New findings back up recent hippocampal research in rodents, providing evidence of a common hippocampal neural mechanism representing temporal information in episodic memory.
