[Gravitational] waves are perturbations of spacetime which travel at c. However, spacetime is allowed to expand and contract faster than c. An expansion followed by a compression is pretty much the definition of a compression wave.
Damage to the brainâs frontal and temporal lobes causes forms of dementia called frontotemporal disorders. Frontotemporal disorders are the result of damage to neurons (nerve cells) in parts of the brain called the frontal and temporal lobes. As neurons die in the frontal and temporal regions, these lobes atrophy, or shrink.
Lobes. The frontal lobe is the largest part of the brain, located in the front of the head. It helps to form reasoning, emotions, and movement. The parietal lobe is the middle part of the brain. It helps us to understand our place in relation to other people and things. It also helps us to interpret touch and pain. The occipital lobe is the back of the brain and helps us process visual information. The temporal lobes are located on each side of the brain.