A woman’s memory of an experience is less likely to be accurate than a man’s if it was unpleasant and emotionally provocative, according to research undertaken by University of Montreal researchers at Louis-H Lafontaine Hospital. “Very few studies have looked at how ‘valence’ and ‘arousal’ affect memories independently of each other, that is to say, how attractive or repulsive we find an experience and how emotionally provocative it is,” said corresponding author Dr. Marc Lavoie, of the university’s Department of Psychiatry and the hospital’s Fernand-Seguin Research Center. “Our test relied on photos – we found firstly that highly arousing pictures blur women’s capacity to determine whether they’ve seen it before, and secondly that women have a clearer memory of attractive experiences than men. Arousal has an enhancing effect on the memory of men however, as does ‘low valence’ or unpleasantness.” [continue reading…]
Memory
Researchers from Mount Sinai School of Medicine have discovered that decaffeinated coffee may improve brain energy metabolism associated with type 2 diabetes. This brain dysfunction is a known risk factor for dementia and other neurodegenerative disorders like Alzheimer’s disease. The research is published online inNutritional Neuroscience.
A research group led by Giulio Maria Pasinetti, MD, PhD, Professor of Neurology, and Psychiatry, at Mount Sinai School of Medicine, explored whether dietary supplementation with a standardized decaffeinated coffee preparation prior to diabetes onset might improve insulin resistance and glucose utilization in mice with diet-induced type 2 diabetes. The researchers administered the supplement for five months, and evaluated the brain’s genetic response in the mice. They found that the brain was able to more effectively metabolize glucose and use it for cellular energy in the brain. Glucose utilization in the brain is reduced in people with type 2 diabetes, which can often result in neurocognitive problems. [continue reading…]
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People with MCI have mild problems with thinking and memory that do not interfere with everyday activities, although their forgetfulness is often apparent to them and their friends and family. While not everyone with MCI develops dementia, an estimated 5 to 10 percent do.
About mild cognitive impairment
Symptoms of MCI include:
- Difficulty learning and remembering new information
- Difficulty solving problems or making decisions
- Forgetting recent events or conversations
- Taking longer to perform complex or difficult mental activities.
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“Memory is difficult. Thinking is difficult,” Storm says. Memories and associations accumulate rapidly. “These things could completely overrun our life and make it impossible to learn and retrieve new things if they were left alone, and could just overpower the rest of memory,” he says.
But, fortunately, that isn’t what happens. “We’re able to get around these strong competing inappropriate memories to remember the ones we want to recall.” Storm and other psychological scientists are trying to understand how our minds select the right things to recall—if someone’s talking about beaches near Omaha, Nebraska, for example, you will naturally suppress any knowledge you’ve collected about Omaha Beach in Normandy. [continue reading…]
