The part of the brain most involved in creating implicit memories is the basal ganglia, particularly the striatum, which includes the caudate nucleus and putamen. The basal ganglia play a central role in procedural learning, habit formation, and the nonconscious learning of motor and cognitive skills. The cerebellum is also critically involved, especially in motor learning and associative implicit memories such as classical conditioning. Additionally, the amygdala contributes to emotional conditioning within implicit memory formation. Importantly, the hippocampus, while crucial for explicit memory, is generally not required for implicit memory formation.

Brain Regions Involved in Implicit Memory

• Basal ganglia (striatum) : Key for procedural memory, skill acquisition, motor and cognitive habits.
• Cerebellum : Important for motor control, fine motor learning, and associative conditioning (e.g., eye-blink classical conditioning).
• Amygdala : Essential for emotional aspects of implicit memory.
• Hippocampus : Not required for implicit memory but more involved in explicit (declarative) memory.

Thus, while multiple brain regions contribute, the basal ganglia and cerebellum are most central in creating implicit memories.