Introduction to Psychology: Gateways to Mind and Behavior 14th Edition ISBN-13: 978-1305091870 ISBN-10: 1305091876….it was published in January 2015.
Additional support for this concept can be found in this journal article by a medical doctor: Pornography addiction – a supranormal stimulus considered in the context of neuroplasticity | Socioaffective Neuroscience & Psychology
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