Negative Noise Bias Theory: A Psychological Framework for Understanding Human Perception of Evil and Good

This paper proposes a new psychological framework—the Negative Noise Bias Theory—to explain why human perception is disproportionately sensitive to evil and negative stimuli, despite the pervasive existence of goodness in everyday life. The framework integrates insights from negativity bias research, evolutionary psychology, media studies, and perceptual attention theory. It argues that the human brain evolved to amplify negative cues for survival purposes, whereas positive experiences are often ignored due to their repetitive and less stimulating nature. The theory further outlines practical implications for media balance, interpersonal relationships, education, and mental health, emphasizing the role of conscious awareness in overcoming negativity bias and fostering psychological resilience.