"D1-like" refers to a type of dopamine receptor that is primarily found in the brain. These receptors are part of the dopamine receptor family and are involved in various neurological processes, including movement, motivation, and reward. D1-like receptors are known to activate certain signaling pathways that influence neuronal activity and behavior. These receptors are categorized into two main types: D1 and D5 receptors. They play a crucial role in the functioning of the central nervous system and are implicated in several psychiatric and neurological disorders. Understanding D1-like receptors can help researchers develop targeted treatments for conditions such as Parkinson's disease and schizophrenia.