The Theory Sound and light sensitivity
The Theory
Can our hypothesis also explain the sound and light sensitivity of brain fatigue?
The brain has limitations on how much information can be processed and reach conscious areas at a time, requiring proper sorting or filtering systems. In a healthy brain, nerve cells reduce their signaling intensity over time, leading to adaptation. This does not occur in individuals with brain fatigue. They report that everything is recognized, both important and unimportant information, making it very tiring and difficult to handle all impressions. The lack of adaptation in signaling explains why they are easily disturbed and cannot maintain focus. If astrocytes’ handling of glutamate is impaired, incoming information becomes more nonspecific and is perceived as new, reaching higher brain centers for processing.