CUNY Researchers Identify Key Brain Regulator Affecting Learning and Adaptability
Researchers at the City University of New York have discovered a receptor called Smoothened, which plays a crucial role in adult brain learning and adaptability. Previously known for its role in brain development before birth, Smoothened has now been identified as a key regulator of learning, motivation, and adaptability in adults. The study, published in iScience, highlights how Smoothened influences the timing of neurotransmitter activity in the brain, particularly dopamine and acetylcholine, which are essential for reinforcement learning. The research found that Smoothened controls the duration of pauses in acetylcholine activity, allowing dopamine to reinforce behaviors. This discovery sheds light on the molecular mechanisms of learning and has implications for understanding compulsive disorders and addiction. 
