Psychology Notes

Psychology is the scientific study of human behavior and mental processes.
It encompasses a broad field of study with numerous subfields.
Psychologists aim to:
- Understand how people perceive the world and their experiences.
- Discover patterns in human behavior, especially in social contexts.
- Design interventions to change or correct undesirable behaviors.

Psychology is a relatively young science rooted in philosophy.
Initially, it was a branch of philosophy focused on the mind and moral development.
Over time, it gained independence and became more scientific.
Early traces of psychology date back to 3,500 BC with Egyptian hieroglyphics showing emotion and suffering.
Egyptians believed gods caused pain and could be appeased through animal sacrifices or prayer.
For a long time, psychology was more of an art than a science.
It became more scientific and modernized in the early twentieth century.
Psychological laboratories emerged in the nineteenth century at universities in Europe and North America.
- These labs focused on experimental research on healthy individuals and those with mental illnesses (e.g., schizophrenia, depression).

Modern psychology has been influenced by fields like neuroscience, neuroeconomics, evolutionary biology, and developmental psychology.
Psychologists are interested in understanding not just what makes us tick, but why people have various thought patterns.

Psychology has many practical applications:
- Learning how to better market to customers.
- Treating mental illness and addiction.
- Improving interpersonal interactions.
Studying psychology enables us to better understand ourselves, others, and the world around us.