Subliminal Advertising: From Its Genesis to Contemporary Practice and Future Directions in Consumer Psychology and Marketing Communication

Subliminal advertising represents one of the most intriguing and controversial intersections of psychology, marketing, and ethics.This study explores the evolution, perception, and ethical implications of subliminal messaging in the advertising industry, with a focus on its presence in the Indian context.By reviewing seminal works and empirical studies, from James Vicary's 1957 experiment to twenty-first-century neuromarketing developments, the paper traces how subliminal techniques transitioned from experimental psychology to digital persuasion mechanisms embedded within visual, auditory, and algorithmic interfaces.The study also investigates the Indian advertising industry's stance toward subliminal communication-highlighting its regulatory vacuum, the absence of standardized ethical frameworks, and the increasing incorporation of subconscious messaging through product placements, music, and symbolic cues in digital and cinematic advertising.A comparative discussion illustrates global attitudes toward subliminal persuasion, particularly within U.S. and European advertising ethics codes.The findings emphasize the duality of subliminal advertising: while it has the potential to strengthen brand recall and emotional engagement, it also raises serious ethical questions about manipulation, autonomy, and informed consent.The study concludes by envisioning the future of subliminal advertising in an AI-driven media environment-where biometric data, neuromarketing analytics, and micro-targeting may render subliminal influence both more potent and less transparent.