Scientific Criticism
Although it is always difficult to determine the many interacting functions of a gene, VMAT2 appears to be involved in the transport of monoamine neurotransmitters across the synapses of the brain. PZ Myers argues: "It's a pump. A teeny-tiny pump responsible for packaging a neurotransmitter for export during brain activity. Yes, it's important, and it may even be active and necessary during higher order processing, like religious thought. But one thing it isn't is a 'god gene.'"
Carl Zimmer claimed that, given the low explanatory power of VMAT2, it can be characterized as a gene that accounts for less than one percent of the variance of self-transcendence scores. These, Zimmer says, can signify anything from belonging to the green party to believing in ESP. Zimmer also points out that the God Gene theory is based on only one unpublished, unreplicated study. However Hamer notes that the importance of the VMAT2 finding is not that it explains all spiritual or religious feelings, but rather that it points the way toward one neurobiological pathway that may be important.
Read more about this topic: God Gene
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