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Consistent with our prediction, there were large and statistically significant VS activation differences between homosexual and heterosexual men when male—female stimuli difference scores were compared Table 1. Neuroreport 19 , — The human orbitofrontal cortex: linking reward to hedonic experience. Sign up to take part. Diekhof, E. Brain activation during execution and motor imagery of novel and skilled sequential hand movements. Future Directions Consistency among neural measures of incentive value, subjective and genital arousal, and sexual identity supports the idea that male sexual orientation in heterosexual, bisexual, and homosexual men is motivated by patterns of sexual arousal and attraction 1.