Heijkoop, Roy

Neurobiology of the reward system in rats

Helse Nord funded project (2018): "The risks of excessive junk food consumption on the brain reward system. A translational study"

Neurobiology of sexual motivation and sexual behavior in rats

NFR funded project (2015): "which brain projections are involved in natural reward"

Neurodevelopmental effects in offspring.

Helse-Nord funded project (2015): "Antidepressant use during pregnancy: the neurodevelopmental effects in the offspring"

Coauthor (with Dr. Eelke Snoeren) of successful grant applications:

2018 Helse Nord (3.252 million NOK)
2018 NRSN PhD Summerschool (500 000 NOK)
2015 NFR FRIPRO (7.1 million)
2015 Helse Nord (1.7 million NOK)

Additional roles and responsibilities

Superuser Chess (for faculty administration and IPS)
Chemical database contact (for IPS)
Member user committee AKM

Registrations in Munin

Frankhuisen, Rutger; Van Herwaarden, Margot; Heijkoop, Roy; Baron, Astrid; Vermeijden, Reinoud; Smout, André; Gooszen, Hein; Samsom, Melvin. Functional dyspepsia and irritable bowel syndrome in patients with achalasia and its association with non-cardiac chest pain and a decreased health-related quality of life.. Scandinavian Journal of Gastroenterology 2009; Volum 44 (6). ISSN 0036-5521.s 687 - 691.s doi: 10.1080/00365520902783709.

Frankhuisen, Rutger; Heijkoop, Roy; Van Herwaarden, Margot; De Vries, Durk; Smout, André; Baron, Astrid; Samsom, Melvin. Validation of a disease-specific quality-of-life questionnaire in a large sample of Dutch achalasia patients.. Diseases of the esophagus 2008; Volum 21 (6). ISSN 1120-8694.s 544 - 550.s doi: 10.1111/j.1442-2050.2008.00815.x.

Frankhuisen, Rutger; Van Herwaarden, Margot; Heijkoop, Roy; Smout, André; Baron, Astrid; Vermeijden, Reinoud; Gooszen, Hein; Samsom, Melvin. Persisting symptoms and decreased health-related quality-of-life in a cross-sectional study of treated achalasia patients.. Alimentary Pharmacology and Therapeutics 2007; Volum 26 (6). ISSN 0269-2813.s 899 - 904.s doi: 10.1111/j.1365-2036.2007.03423.x.

Huijgens, Patty; Heijkoop, Roy; Snoeren, Eelke. Silencing and stimulating the medial amygdala impairs ejaculation but not sexual incentive motivation in male rats. Behavioural Brain Research 2021; Volum 405. ISSN 0166-4328.s doi: 10.1016/j.bbr.2021.113206.

Heinla, Indrek; Heijkoop, Roy; Houwing, Danielle; Olivier, Jocelien; Snoeren, Eelke. Third-party prosocial behavior in adult female rats is impaired after perinatal fluoxetine exposure. (sammendrag) Physiology and Behavior 2020; Volum 222. ISSN 0031-9384.s doi: 10.1016/j.physbeh.2020.112899.

Hegstad, Jan; Huijgens, Patty; Houwing, Danielle; Olivier, Jocelien; Heijkoop, Roy; Snoeren, Eelke. Female rat sexual behavior is unaffected by perinatal fluoxetine exposure. Psychoneuroendocrinology 2020; Volum 120. ISSN 0306-4530.s 1 - 14.s doi: 10.1016/j.psyneuen.2020.104796.

Houwing, Danielle; Heijkoop, Roy; Olivier, Jocelien; Snoeren, Eelke. Perinatal fluoxetine exposure changes social and stress-coping behavior in adult rats housed in a seminatural environment. Neuropharmacology 2019; Volum 151. ISSN 0028-3908.s 84 - 97.s doi: 10.1016/j.neuropharm.2019.03.037.

Heijkoop, Roy; Huijgens, Patty Thalia; Snoeren, Eelke. Assessment of sexual behavior in rats: the potentials and pitfalls.. Behavioural Brain Research 2017; Volum 352. ISSN 0166-4328.s 70 - 80.s doi: 10.1016/j.bbr.2017.10.029.

Frankhuisen, Rutger; Van Herwaarden, Margot; Heijkoop, Roy; Baron, Astrid; Vermeijden, Reinoud; Smout, André; Gooszen, Hein; Samsom, Melvin. Functional dyspepsia and irritable bowel syndrome in patients with achalasia and its association with non-cardiac chest pain and a decreased health-related quality of life.. Scandinavian Journal of Gastroenterology 2009; Volum 44 (6). ISSN 0036-5521.s 687 - 691.s doi: 10.1080/00365520902783709.

Frankhuisen, Rutger; Heijkoop, Roy; Van Herwaarden, Margot; De Vries, Durk; Smout, André; Baron, Astrid; Samsom, Melvin. Validation of a disease-specific quality-of-life questionnaire in a large sample of Dutch achalasia patients.. Diseases of the esophagus 2008; Volum 21 (6). ISSN 1120-8694.s 544 - 550.s doi: 10.1111/j.1442-2050.2008.00815.x.

Frankhuisen, Rutger; Van Herwaarden, Margot; Heijkoop, Roy; Smout, André; Baron, Astrid; Vermeijden, Reinoud; Gooszen, Hein; Samsom, Melvin. Persisting symptoms and decreased health-related quality-of-life in a cross-sectional study of treated achalasia patients.. Alimentary Pharmacology and Therapeutics 2007; Volum 26 (6). ISSN 0269-2813.s 899 - 904.s doi: 10.1111/j.1365-2036.2007.03423.x.

Huijgens, Patty; Heijkoop, Roy; Vanderschuren, LJMJ; Lesscher, Heidi; Snoeren, Eelke. Involvement of the BNST and its projection to the VTA in motivation for a natural food reward. FENS-Hertie Winter School 2019-01-06 - 2019-01-12 2019.

Snoeren, Eelke; Hegstad, Jan; Houwing, Danielle; Olivier, Jocelien; Heijkoop, Roy. Perinatal SSRI exposure and rat sexual behavior. Meeting of the Society for Social Neuroscience 2019-10-17 - 2019-10-18 2019.

Snoeren, Eelke; Hegstad, Jan; Houwing, Danielle; Olivier, Jocelien; Heijkoop, Roy. Perinatal SSRI exposure and rat sexual behavior. Annual meeting of the Society for Neuroscience 2019-10-19 - 2019-10-23 2019.

Heinla, Indrek; Heijkoop, Roy; Houwing, Danielle; Olivier, Jocelien; Snoeren, Eelke. Perinatal SSRI exposure affects prosocial behaviour in adult rats. Conference: Perinatal Origins of Neuropsychiatric Disorders: from Molecular Mechanisms to Therapeutic Perspectives 2019-05-29 - 2019-06-01 2019.

Hegstad, Jan; Heijkoop, Roy; Houwing, Danielle; Olivier, Jocelien; Snoeren, Eelke. Perinatal SSRI exposure does not affect female sexual behavior. Nordic Neuroscience meeting 2019-06-12 - 2019-06-14 2019.

Heinla, Indrek; Heijkoop, Roy; Houwing, Danielle; Snoeren, Eelke. Perinatal SSRI exposure affects prosocial behavior in adult rats. Nordic Neuroscience meeting 2019-06-12 - 2019-06-14 2019.

Huijgens, Patty; Heijkoop, Roy; Vanderschuren, Louk; Lesscher, Heidi; Snoeren, Eelke. Effect of stimulating and silencing the BNST and BNST-VTA projection on sucrose self-administration in rats. Nordic Neuroscience meeting 2019-06-12 - 2019-06-14 2019.

Heijkoop, Roy; Houwing, Danielle; Olivier, Jocelien; Snoeren, Eelke. Perinatal SSRI exposure and male rat sexual behavior. Nordic Neuroscience meeting 2019-06-12 - 2019-06-14 2019.

Heinla, Indrek; Heijkoop, Roy; Houwing, Danielle; Snoeren, Eelke. Perinatal SSRI exposure affects (pro)social behaviour in adult rats. FENS Forum of Neuroscience 2018-07-07 - 2018-07-11 2018.

Huijgens, Patty Thalia; Heijkoop, Roy; Snoeren, Eelke. The role of glutamatergic medial amygdala neurons in male rat sexual behavior.. Nordic Neuroscience 2017 2017-06-07 - 2017-06-09 2017.

Huijgens, Patty Thalia; Heijkoop, Roy; Snoeren, Eelke. Involvement of glutamatergic medial amygdala neurons in ejaculation in male rats. Annual meeting of the Society for Neuroscience 2017-11-11 - 2017-11-15 2017.

Heijkoop, Roy; Houwing, Danielle; Olivier, Jocelien; Snoeren, Eelke. The effects of perinatal SSRI exposure on behavior during adulthood. Annual meeting of the Society for Neuroscience 2017-11-11 - 2017-11-15 2017.

Houwing, Danielle; Heijkoop, Roy; Olivier, Jocelien; Snoeren, Eelke. Perinatal SSRI exposure affects behavior during adulthood in rats. Annual meeting of the Society for Behavioral Neuroendocrinology 2017-06-11 - 2017-06-14 2017.

Huijgens, Patty Thalia; Heijkoop, Roy; Snoeren, Eelke. Glutamatergic medial amygdala neurons are involved in ejaculation but not sexual motivation in male rats. Annual meeting of the Society for Behavioral Neuroendocrinology 2017-06-11 - 2017-06-14 2017.

Snoeren, Eelke; Heijkoop, Roy. Shining a light on brain function. (fulltekst) UiT Helseblogg 2016.