Re: What is the scientific explanation for ghost?

I should say first of all, I do not believe in ghosts.  And very few scientists
will admit to believing in ghosts as well. 
 
I tend to be very open minded on paranormal and supernatural beliefs (in fact, I
am very well read in withcraft, demonology, and the occult).  But I always come
back to the scientific principles of experimentation, reproducibility, and
refutable hypothesis.  

There are several conditions that cause people to hallucinate. Among these
conditions are:

1) An active imagination -- a desire to see a ghost or something not real.
2) Dream like state of consciousness -- not quite a wake.
3) Chemical imbalances in the brain -- drug or biologically induced.
4) Brain injury 

A very good friend of mine sees hallucinations caused by a stroke-like brain
trauma.  His injury may have been caused by poorly manage insulin ingestion for
controlling his diabetes.  The long term day-to-day instability of his blood
sugar levels could have induced brain damage to parts of his brain involving
visual and auditory stimuli processing.  Or could be the onset of a Alzheimer
like disease.

His hallucinations, however, are often of plausible objects like people, dogs,
or food.

I recommend web searches on such things as:

Lewy bodies -- malformations in the brain/nervous system
Alzheimer and Parkinson Diseases
Narcotics

  

Sincerely,

Tom "Casper" Cull