The term "indigo children" originated with
parapsychologist and self-described
synesthete and
psychic Nancy Ann Tappe, who developed the concept in the 1970s. version which she expanded and republished in paperback in 1986 as
Understanding Your Life Thru Color. In these works Tappe introduced the concept of "life colors", defined in
Understanding Your Life Thru Color as "the single color of the
aura that remains constant in most people from the cradle to the grave". The concept of "life colors" was popularized nationally by Tappe's student Barbara Bowers, who published
What Color Is Your Aura?: Personality Spectrums for Understanding and Growth in 1989, and by Bowers' student Pamala Oslie, Tappe stated that during the late 1960s and early 1970s she began noticing that many children were being born with
indigo auras (or, in her terminology, with indigo as their "life color"). The idea was later popularized by the 1998 book
The Indigo Children: The New Kids Have Arrived, written by husband and wife
self-help lecturers
Lee Carroll and Jan Tober. In 2002, the first international conference on indigo children was held in Hawaii, drawing 600 attendees, and there have been subsequent conferences in Florida, Oregon, and elsewhere. Several films have been produced on the subject, including two films by New Age writer James Twyman: a 2003 feature film
Indigo and a 2006 documentary
The Indigo Evolution. Sarah W. Whedon suggests in a 2009 article in
Nova Religio that the social construction of indigo children is a response to an "apparent crisis of American childhood" in the form of increased
youth violence and diagnoses of
attention deficit hyperactivity disorder. Whedon believes parents label their children as "indigo" to provide an alternative explanation for their children's improper behavior, which is stemming from
ADHD. == Attributed characteristics ==