Impaired capacity for autonoetic reliving during autobiographical event recall in mild Alzheimer’s disease

Take-home message: Autonoesis or ‘Autonoetic consciousness is the human ability to mentally place ourselves in the past, in the future, or in counterfactual situations, and to analyze our own thoughts‘ (wiki). Here, we focus on impairments of autonoesis in Alzheimer’s disease (AD), using the Episodic Autobiographical Memory Interview (EAMI). We find impairments in AD patients with the following pattern: AD [Download the paper]… Read More

Prolonged rote learning produces delayed memory facilitation and metabolic changes in the hippocampus of the ageing human brain.

Take-home message: repeated practice with material that must be remembered facilitates remembering in an aged population in whom there is expected to be a degree of age-related memory loss. This practice produces changes in the brain in structures that support learning and memory. Think of it like this: memory can be exercised via practice, much… Read More

Age and cortisol levels modulate judgment of positive and negative facial expressions.

Age and cortisol levels modulate judgment of positive and negative facial expressions. Psychoneuroendocrinology. 2012 Jun;37(6):827-35. doi: 10.1016/j.psyneuen.2011.09.015. Epub 2011 Oct 26. [Download here] Feeney J, Gaffney P, O’Mara SM. Source School of Psychology and Institute of Neuroscience, Trinity College, Dublin, Ireland. Abstract There is some evidence that older adults respond to emotional stimuli differently to young adults, and… Read More

Hippocampal dynamics predict interindividual cognitive differences in rats.

Hippocampal dynamics predict interindividual cognitive differences in rats. Take-home message: Individual memory in old rats was assessed using DNMS. We recorded hippocampal CA1 place cells as these rats explored a familiar environment; 27% of recorded pyramidal neurons showed substantial delayed onsets of place field activity. This age-related firing onset delay occurred under basal conditions; it was… Read More