5602
The results may be interpreted as follows : the overall mechanisms of the neurovascular coupling are still acting well at the moderate ethanol level of about 0 . 8 /1000 ( in particular the vessel - related parts ) , but the potency to evoke a neurovascular response is already compromised most obviously in the supplementary motor area responsible for complex synchronizing and planning processes .
 ethanol
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: Chemical 
Text: {0} 
Answer:
 ethanol