First of all, welcome again my dear @abigail-dantes. waiting for your publications to make us acquire more knowledge. and how not to learn from you this I did not know:

But, what is vascular dementia?
Well, dementia is related to neurodegeneration and changes in brain function. Therefore, it is considered to be a disorder of the brain. Therefore, in vascular dementia, this is a consequence of a poor (or interrupted) blood supply to the brain. As you know, blood carries nutrients and oxygen, elements with which neurons can not function properly. This lack of oxygen and nutrients will eventually cause the progressive death of brain cells, which can cause the onset of vascular dementia.

in this case my mother-in-law suffers a similar case because several years ago I began with hallucinations and aggression states added to the loss or mental lacunae ... thanks for your post greetings my friend ..