For further information about these research topics please visit:

Consciousness Resources

Center for Consciousness Studies at the University of Arizona

Meditation and Contemplative Spirituality Resources

Mind & Life institute
Shambhala International

Synesthesia Resources

BBC Radio 4 audio clip
Book about synesthesia
Pictures of synesthetic concurrents

The American Synesthesia Association is a not-for-profit educational organization that seeks to educate people about synesthesia.