16070
Interestingly , a corresponding change is observed in ventral tegmental area ( VTA ) GABA ( A ) receptors , which change from mediating hyperpolarization of VTA GABA neurons to mediating depolarization .
 Chemical: GABA; Chemical: GABA
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: GABA; Chemical: GABA