Hermann Ebbinghaus was a pioneering German psychologist known for his work on memory and learning. He conducted extensive experiments on himself to investigate memory retention and forgetting. His notable contributions include the development of the "forgetting curve," which illustrates how information is lost over time when there is no attempt to retain it. Ebbinghaus used non-sense syllables to study memory in a systematic way, paving the way for experimental psychology. Ebbinghaus also formulated principles of learning, notably the spacing effect, which suggests that information is better retained when learning sessions are spaced out rather than crammed into one period. His findings were groundbreaking as they challenged the norms of psychological research that were prevalent at the time, emphasizing the importance of empirical methods in understanding cognitive processes. His work laid the foundation for future research in cognition, influencing fields like educational psychology and cognitive science. Ebbinghaus is recognized as a founder of experimental psychology and his rigorous methodologies remain influential in psychological research today. Hermann Ebbinghaus was a pioneering German psychologist known for his work on memory and learning. He conducted extensive experiments on himself to investigate memory retention and forgetting. His notable contributions include the development of the "forgetting curve," which illustrates how information is lost over time when there is no attempt to retain it. Ebbinghaus used non-sense syllables to study memory in a systematic way, paving the way for experimental psychology. Ebbinghaus also formulated principles of learning, notably the spacing effect, which suggests that information is better retained when learning sessions are spaced out rather than crammed into one period. His findings were groundbreaking as they challenged the norms of psychological research that were prevalent at the time, emphasizing the importance of empirical methods in understanding cognitive processes. His work laid the foundation for future research in cognition, influencing fields like educational psychology and cognitive science. Ebbinghaus is recognized as a founder of experimental psychology and his rigorous methodologies remain influential in psychological research today.