For decades, researchers have discovered much about how humans automatically categorize others in social perception. Some categorizations–race, gender, and age–are so automatic that they are termed “primitive categories.” As we categorize, we often develop stereotypes about the categories. Researchers know much about racism and sexism, but comparatively little about prejudicing and stereotyping based on age. The articles in this issue highlight the current empirical and theoretical work by researchers in gerontology, psychology, communication, and related fields on understanding the origins and consequences of stereotyping and prejudicing against older adults. With the aging baby boomer demographic, it is especially timely for researchers to work to understand how society can shed its institutionalized ageism and promote respect for elders.
