Gating Of Somatosensory Neural Oscillations Across The Lifespan: A Narrative Review
Our brains are constantly bombarded with information from the world around us. To prevent overload, our brains have a clever filtering system that helps us focus on what’s important and ignore repetitive, less relevant signals. This filtering process, known as sensory gating, is crucial for clear thinking and responding effectively to our environment. Recent research sheds light on how this vital brain function works, particularly in our sense of touch and body awareness. It explores how different patterns of brain activity, like rhythmic electrical signals called oscillations, contribute to this filtering. The findings suggest that as we get older, our brain’s ability to gate, or filter, these sensory inputs can decline. This decline is not just about age; it’s also connected to changes in the thickness of certain brain regions and the way brain waves behave. Interestingly, the research also looked at how this filtering works in people with conditions like Alzheimer’s disease. While their basic filtering might seem normal, there are subtle differences in how their brains respond to touch, including heightened reactions and unusual spontaneous brain activity. Understanding these intricate mechanisms helps us better grasp how our brains process sensory information throughout life and how these processes might be affected in various neurological conditions. This knowledge could pave the way for new ways to understand and support brain health as we age.
Source: link to paper