Psychonomics is a relatively new word, coined in the mid-20th century by combining the words psychology and economics. It is a branch of psychology that focuses on the quantitative analysis of human behavior, cognition, and decision-making processes. Although there are no established synonyms for psychonomics, there are related fields that explore similar topics. For example, behavioral economics is a field that studies the impact of psychological, emotional, and social factors on economic decisions. Cognitive psychology investigates mental processes such as attention, perception, and memory. Neuroeconomics explores how brain processes influence economic behaviors and decision-making. Overall, these fields and their theories can be seen as complementary to psychonomics.