13267
RESULTS : We found that drug abstinence after repeated amphetamine stimulation decreased locomotor activity and exploratory behavior in the open field test , increased immobility in the forced swim test , and had no significant effect on the recognition index in the novel object recognition test .
 Chemical: amphetamine
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
 Chemical: amphetamine