41504
Research from neuroscience considers the NDE to be a hallucinatory state caused by various neurological factors such as cerebral anoxia , hypercarbia , abnormal activity in the temporal lobes and brain damage .
 hypercarbia
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: media, plant, vehicle, astronomical object, time, disease, animal, location, person, organization, mythical figure, food, biology, geographical phenomenon, instrument, event 
Text: {0} 
Answer:
 hypercarbia