Musical Expertise Increases Top–Down Modulation Over Hippocampal Activation during Familiarity Decisions

摘要: The hippocampus has classically been associated with episodic memory, but is sometimes also recruited during semantic memory tasks, especially for the skilled exploration of familiar information. Cognitive control mechanisms guiding search may benefit from set cognitive processes at stake musical training. Here, we examined using functional magnetic resonance imaging, whether expertise would promote top-down left inferior frontal gyrus (LIFG) over generation hippocampally-based goal-directed thoughts mediating familiarity judgment proverbs and items. Analyses behavioral data confirmed that experts more efficiently access melodies than non-musicians although such increased ability did not transfer to verbal memory. At brain level, specifically enhanced recruitment melodies, proverbs. Additionally, hippocampal activation contributed speed only in musicians. Critically, causal modeling neural dynamics between LIFG further showed excitatory regulation decision increases – an effect generalized across local our show modulates online response serve retrieval melodies. reconfiguration network following training could constitute a promising framework understand its preserve functions.