Final answer:
Positive psychology and neuroscience were two important developments in psychology in the 1990s.
Step-by-step explanation:
The two developments, important to psychology, that came about in the 1990s are:
- Positive psychology: Positive psychology emerged as a field of study that focuses on understanding and promoting human well-being and flourishing. It emphasizes strengths, positive emotions, resilience, and personal growth.
- Neuroscience: Neuroscience made significant advancements in the 1990s, with the development of advanced brain imaging techniques and the understanding of how the brain functions. This allowed psychologists to explore the relationship between the brain and behavior in greater detail.