Final answer:
Hugo Münsterberg is the psychologist who applies his research to the field of marketing and packaging, emphasizing the importance of understanding consumer psychology to create more effective packaging and attract shoppers.
Step-by-step explanation:
The psychologist who applies his research to the field of marketing and packaging is Hugo Münsterberg. In 1913, he published a book called Psychology and Industrial Efficiency, which explored the role of psychology in improving workplace efficiency and productivity. One of the areas Münsterberg focused on was advertising and marketing, emphasizing the importance of understanding consumer psychology to create more effective packaging and attract shoppers. He believed that by appealing to consumers' emotions and desires through well-designed packaging, companies could increase sales and customer satisfaction.