Source: Sergey Nivens/Shutterstock The recent study by first author Mychael Lourenco et al., “ Exercise-Linked FNDC5/Irisin Rescues Synaptic Plasticity and Memory Defects in Alzheimer’s Models ,” adds to a growing body of evidence that exercise-induced irisin may protect against neurodegeneration and boost memory in both humans and mice.
The Stanford researchers sought to discover the neurons responsible for the emotional experience of pain. Using a combination of brain-imaging and molecular testing, the researchers discovered a group of cells in the amygdala that serves as an on-off switch to pain aversion in laboratory mice.
Discussion of Fight-Flight-or-Freeze Responses Based on a Combination of Life Experience and Empirical Evidence Yesterday afternoon, I wrote a post, "Exercise May Promote Gene Expression of Feel-Good Chemicals" based on new research from McMaster University ( Allison et al., 2019 ), which found that the combination of vigorous aerobic exercise and weight-lifting caused a chain reaction along the kynurenine pathway that resulted in the synthesis of more serotonin and a decreased depression risk.
The gentle and continuous rocking motion of the bed used by sleep researchers at the University of Geneva helped to synchronize neural activity between thalamo-cortical networks of the brain, which the researchers believe play an important role in boosting memory consolidation.
In the lizard study, researchers from Pennsylvania State University exposed young lizards to fire ants (a natural stressor) and compared stress levels to unexposed lizards. The children of parents who experienced WWII trauma showed genetic changes and a greater risk of stress disorders.
Sweet 2-year-old starstruck meeting Mickey Mouse copied! An adorable 2-year-old was just a little bit starstruck meeting her favorite character, Mickey Mouse, on a birthday trip to a Disney amusement park. TODAY’s Hoda Kotb has the Morning Boost. Read More
Because of my long-term interests in whether or not animals have a sense of time, I was especially please to see a very important and novel study on mice published in Nature Neuroscience called "Evidence for a subcircuit in medial entorhinal cortex representing elapsed time during immobility" by Northwestern University researchers James Heys and Daniel Dombeck.