Roy Heijkoop

This study examines neural activity in the medial amygdala and bed nucleus of the stria terminalis in male rats during social and sexual interactions, revealing distinct response patterns to olfactory and tactile cues based on experience.

The paper distinguishes two components of sexual motivation in rats and shows that males and females differ in their incentive motivation and motivation to sustain copulation.

This study shows that perinatal fluoxetine exposure increases sexual behavior in adult male rats, suggesting long-term effects of serotonin on sexual function.

This study shows that prolonged junk food exposure in rats reduces VTA neural activity and responsiveness to natural rewards like food and sex.

This study examines temporal copulatory patterns in female rats, finding that receptivity influences sexual bout frequency and time-outs, while mating conditions affect less-receptive females.

This study investigates how CaMKIIa+ neurons in the BNST modulate natural reward seeking behaviors, showing their role in regulating sexual behavior and sucrose self-administration based on internal state.

This study examines how different regimes of cafeteria diet affect reward system activity in rats, finding reduced c-Fos expression in the NAc-shell but not in PFC or VTA.

This study shows that chemogenetic manipulation of the medial amygdala in male rats affects ejaculation but not sexual incentive motivation during copulation.