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We found that in striatal neurons co - cultured with cortical neurons , the absence of dopaminergic stimuli favored the excess of glutamatergic drive from cortical neuron terminals , thus resulting in a constitutive depression of the corticostriatal glutamatergic transmission .
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Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
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