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Olds and Milner later placed rats in boxes where they could press a lever to produce electrical self-stimulation of the brain. Curr Opin Pharmacol 5 1:

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In a study, sexual experience has been shown to induce alterations in medium spiny neurons in the nucleus accumbens similar to those seen with drugs of abuse. After prolonged consumption of pornography, excitatory response to pornography diminishes, the repulsion evoked by common pornography fades and may be lost with prolonged consumption. Additionally, three regions orbitofrontal cortex, cingulate cortex, and caudate nuclei and the thalamus were found to be active which are involved with perceived emotional concerns and repetitive behavior Stoleru, 1999.

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Dopamine is a neurotransmitter that is involved in drug consumption and addiction. In other words these specific brain areas may be partly responsible, or at least explain some of the motivations, for watching pornography and in some cases subsequent addiction. This page was last edited on 27 April 2017, at 13:

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Delta FosB is induced in the nucleus accumbens and dorsal striatum by all drugs of abuse after chronic administration. For example, pornography addiction may begin with non-pornographic but provocative images and can then progress to more sexually explicit images. According to Cooper 1998 , there are three factors that can explain the tremendous growth and attractiveness of the Internet Pornography: Internet Pornography Addiction and Priestly Formation:

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