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In contrast , administration of BPA to juvenile vervet monkeys ( 14 - 18 months of age ) was without effect on these indices , or on dopamine and serotonin concentrations in striatum and prefrontal cortex , or on performance of a cognitive task that tests working memory capacity .
 Chemical: BPA; Chemical: dopamine; Chemical: serotonin
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: BPA; Chemical: dopamine; Chemical: serotonin