8 (3 chlorostyryl)caffeine 2 Adenosine 2 Amphetamines 2 Animalia 2 Animals 2 Caffeine 2 Catalepsy 2 Corpus Striatum 2 Dopamine Antagonists 2 Enkephalins 2 Gene Expression 2 Haloperidol 2 Mice 2 Mice, Inbred C57BL 2 Mice, Knockout 2 Motor Activity 2 Phenethylamines 2 RNA, Messenger 2 Receptor, Adenosine A2A 2 Receptors, Dopamine D1 2 Receptors, Dopamine D2 2 Receptors, Purinergic P1 2 adenosine A2a receptor 2 adenosine A2a receptor agonist 2 adenosine A2a receptor antagonist 2 adenosine receptor blocking agent 2 amphetamine derivative 2 animal behavior 2 animal experiment 2 animal model 2