17942
RATIONALE : Mice lacking the dopamine transporter ( DAT ) display major behavioral alterations that include hyperactivity , perseverative locomotor patterns , and reduced prepulse inhibition of the acoustic startle reflex .
 Chemical: dopamine
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: dopamine