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Publications

2021

Treating the Most Vulnerable: A Discursive Review of Experimental Pain in Alzheimer’s Disease. Accepted 29MAR2021, Nursing Open.

Anderson AR, Iversen WL, Carter MA, Moss KO, Cowan RL, Monroe TB. Experimentally evoked pain in Alzheimer’s disease. J Am Assoc Nurse Pract. 2021 Mar 12. doi: 10.1097/JXX.0000000000000580. PMID: 33731557.. Accepted January 6, 2021.

2020

Romano RR, Carter MA, Dietrich MA, Cowan RL, Bruehl SP, Monroe TB. Could Altered Evoked Pain Responsiveness be a Phenotypic Biomarker for Alzheimer’s Disease Risk? A Cross-Sectional Analysis of Cognitively Healthy Individuals. Accepted, Journal of Alzheimer’s Disease, Accepted November 20, 2020. 2021;79(3):1227-1233. doi: 10.3233/JAD-201293. PMID: 33337380.

Atalla S, Cowan RL, Anderson AR, Dietrich M, Iverson L, Kalvas LBA, Moss K, Wright K, Monroe TB. Determining the impact of age and sex on the psychophysical and neurophysiological response to thermal pain across the adult lifespan. Accepted, Journal of Advanced Nursing, Accepted August 16, 2020. 2021 Mar;77(3):1546-1555. doi: 10.1111/jan.14514. Epub 2021 Jan 15. PMID: 33450111; PMCID: PMC7898385.

Kavur MA, Finlayson AJR, Cowan RL. Sexual Addiction: A Missed Diagnosis. Sexual Addiction and Compulsivity: The Journal of Treatment and Prevention. Online May 25, 2020.

2019

Castrellon JJ, Young JS, Dang LC, Cowan RL, Zald DH, Samanez-Larkin GR. Mesolimbic Dopamine D2 Receptors and Neural Representations of Subjective Value. Sci Rep, 9 (1), 20229 2019 Dec 27. PMID: 30932295 PMCID: PMC6548655 (available on 2020-07-01)

Atalla SW, Kalvas LB, Campbell JL, Anderson AR, Cowan RL, Humbel AC, Monroe TB. Neuroimaging Methods for Nursing Science. Nurs Res, Accepted Dec 4, 2019. Nurs Res. 2020 May/Jun;69(3):219-226. doi: 10.1097/NNR.0000000000000410. PMID: 31804432

Beach PA, Cowan RL, Dietrich MS, Bruehl SP, Atalla SW, Monroe TB. Thermal Psychophysics and Associated Brain Activation Patterns Along a Continuum of Healthy Aging. Pain Med, 2019 Nov 26 [online ahead of print] PMID: 31769853. 2020 Sep 1;21(9):1779-1792. doi: 10.1093/pm/pnz281.

Juarez EJ, Castrellon, JJ, Green, MA, Crawford, JL, Seaman, KL, Smith, CT, Dang, LC, Matuskey, D, Morris, ED, Cowan, RL, Zald, DH, Samanez-Larkin, GR. Reproducibility of the correlative triad among aging, dopamine receptor availability, and cognition. Accepted, 30 AUGUST 2019, Psychology and Aging.

Seaman KL, Smith CT, Juarez EJ, Dang LC, Castrellon JJ, Burgess LL, San Juan MD, Kundzicz PM, Cowan RL, Zald DH, Samanez-Larkin GR. Differential regional decline in dopamine receptor availability across adulthood: Linear and nonlinear effects of age. Hum Brain Mapp. 2019 Jul;40(10):3125-3138. doi: 10.1002/hbm.24585. Epub 2019 Apr 1. PMID: 30932295

2018

Dang LC, Samanez-Larkin GR, Smith CT, Castrellon JJ, Perkins SF, Cowan RL, Claassen DO, Zald DH. FTO affects food cravings and interacts with age to influence age-related decline in food cravings. Physiol Behav. 2018 Aug 1;192:188-193. doi: 10.1016/j.physbeh.2017.12.013. Epub 2017 Dec 9. PMID: 29233619

Castrellon JJ, Seaman KL, Crawford JL, Young JS, Smith CT, Dang LC, Hsu M, Cowan RL, Zald DH, Samanez-Larkin GR. Individual Differences in Dopamine Are Associated with Reward Discounting in Clinical Groups But Not in Healthy Adults. J Neurosci. 2019 Jan 9;39(2):321-332. doi: 10.1523/JNEUROSCI.1984-18.2018. Epub 2018 Nov 16. PMID: 30446530

Smith CT, San Juan MD, Dang LC, Katz DT, Perkins SF, Burgess LL, Cowan RL, Manning HC, Nickels ML, Claassen DO, Samanez-Larkin GR, Zald DH. Ventral striatal dopamine transporter availability is associated with lower trait motor impulsivity in healthy adults. Transl Psychiatry. 2018 Dec 7;8(1):269. doi: 10.1038/s41398-018-0328-y. PMID: 30531858

Smith CT, Dang LC, Burgess LL, Perkins SF, San Juan MD, Smith DK, Cowan RL, Le NT, Kessler RM, Samanez-Larkin GR, Zald DH. Lack of consistent sex differences in D-amphetamine-induced dopamine release measured with [18F]fallypride PET. Psychopharmacology (Berl). 2018 Oct 22. doi: 10.1007/s00213-018-5083-5. [Epub ahead of print] PMID: 30350220

Dang LC, Samanez-Larkin GR, Castrellon JJ, Perkins SF, Cowan RL, Zald DH. Individual differences in dopamine D2 receptor availability correlate with reward valuation. Cogn Affect Behav Neurosci. 2018 May 3. doi: 10.3758/s13415-018-0601-9. [Epub ahead of print] PubMed PMID: 29725947.

Prior to 2018

Eckstrand KL, Mummareddy N, Kang H, Cowan R, Zhou M, Zald D, Silver HJ, Niswender KD, Avison MJ. An insulin resistance associated neural correlate of impulsivity in type 2 diabetes mellitus. PLoS One. 2017 Dec 11;12(12):e0189113. doi: 10.1371/journal.pone.0189113.  eCollection 2017.  PubMed PMID: 29228027; PubMed Central PMCID: PMC5724830.

Cowan RL, Beach PA, Atalla SW, Dietrich MS, Bruehl SP, Deng J, Wang J, Newhouse PA, Gore JC, Monroe TB. Sex Differences in the Psychophysical Response to Contact Heat in Moderate Cognitive Impairment Alzheimer’s Disease: A Cross-Sectional Brief Report.

J Alzheimers Dis. 2017 Sep 29. doi: 10.3233/JAD-170532. [Epub ahead of print]

PMID: 2896823

Dang LC, Samanez-Larkin GR, Castrellon JJ, Perkins SF, Cowan RL, Newhouse PA, Zald DH. Spontaneous Eye Blink Rate (EBR) Is Uncorrelated with Dopamine D2 Receptor Availability and Unmodulated by Dopamine Agonism in Healthy Adults. eNeuro. 2017 Sep 18;4(5). pii: ENEURO.0211-17.2017. doi: 10.1523/ENEURO.0211-17.2017. eCollection 2017 Sep-Oct.

Smith CT, Crawford JL, Dang LC, Seaman KL, San Juan MD, Vijay A, Katz DT, Matuskey D, Cowan RL, Morris ED, Zald DH, Samanez-Larkin GR. Partial-volume correction increases estimated dopamine D2-like receptor binding potential and reduces adult age differences. J Cereb Blood Flow Metab. 2017 Jan 1:271678X17737693. doi: 10.1177/0271678X17737693

Dang LC, Castrellon JJ, Perkins SF, Le NT, Cowan RL, Zald DH, Samanez-Larkin GR. Reduced effects of age on dopamine D2 receptor levels in physically active adults.

2017 Mar 1;148:123-129. doi: 10.1016/j.neuroimage.2017.01.018. Epub 2017 Jan 10. PMID: 28089678

Smith CT, Dang LC, Buckholtz JW, Tetreault AM, Cowan RL, Kessler RM, Zald DH. The impact of common dopamine D2 receptor gene polymorphisms on D2/3 receptor availability: C957T as a key determinant in putamen and ventral striatum. Transl Psychiatry. 2017 Apr 11;7(4):e1091. doi: 10.1038/tp.2017.45. PMID: 28398340

Monroe, T. B., Beach, P. A., Bruehl, S. P., Dietrich, M. S., Rogers, B. P., Gore, J. C., Atalla, S. W., & Cowan R. L. (2017). The Impact of Alzheimer’s Disease on the Resting State Functional Connectivity of Brain Regions Modulating Pain: A Cross Sectional Study. Journal of Alzheimer’s & Dementia, 57(1), 71-83. doi: 10.3233/JAD-161187

Monroe, T. B., Fillingim, R. B., Bruehl, S. P., Rogers, B. P., Dietrich, M. S., Gore, J. C., Atalla, S. W., & Cowan, R. L. Sex Differences in Brain Regions Modulating Pain: A Cross Sectional Resting State Functional Connectivity Study. (Accepted). Pain Medicine. 19 (9), 1737-1747 2018 Sep 1.

Wang, J., Dietrich, M. S., Simmons, S. F., Cowan, R. L., & Monroe, T. B. Pain Interference and Depressive Symptoms in Communicative People with Alzheimer’s Disease: A Pilot Study. Aging & Mental Health. Aging Ment Health. 2018 Jun;22(6):808-812. doi: 10.1080/13607863.2017.1318258. Epub 2017 May 3. PubMed PMID: 28466655.

Linh Cat Dang, PhD, Gregory Samanez-Larkin, PhD; Jaime Castrellon, BA; Scott Perkins, MA; Ronald Cowan, MD, PhD; David Zald, PhD. Associations between Dopamine D2 Receptor Availability and BMI Depend on Age. Accepted, Neuroimage, 17MAY2016. Neuroimage. 2016 Sep;138:176-83. doi: 10.1016/j.neuroimage.2016.05.044. Epub 2016 May 18. PMID: 27208860

Smith CT, Dang LC, Cowan RL, Kessler RM, Zald DH. Variability in paralimbic dopamine signaling correlates with subjective responses to d-amphetamine. Neuropharmacology. 2016 May 9. Neuropharmacology. 2016 Sep;108:394-402. doi: 10.1016/j.neuropharm.2016.05.004. Epub 2016 May 10.PMID: 27174408

Smith CT, Weafer J, Cowan RL, Kessler RM, Palmer AA, de Wit H, Zald DH. Individual differences in timing of peak positive subjective responses to d-amphetamine: Relationship to pharmacokinetics and physiology. J Psychopharmacol. 2016 Apr;30(4):330-43. doi: 10.1177/0269881116631650. Epub 2016 Feb 15.

PMID: 26880226

Todd B. Monroe, PhD; Stephen J. Gibson, PhD; Stephen P. Bruehl, PhD; John C. Gore, PhD; Mary S. Dietrich, PhD; Paul Newhouse, MD; Sebastian Atalla, BS; Ronald L. Cowan, MD, PhD. Contact heat sensitivity and reports of unpleasantness in communicative people with mild to moderate cognitive impairment in Alzheimer’s disease: a cross-sectional study. BMC Med. 2016 May 10;14(1):74. doi: 10.1186/s12916-016-0619-1.

PMID: 27164846

Chodkowski BA, Cowan RL, Niswender KD. Imbalance in Resting State Functional Connectivity is Associated with Eating Behaviors and Adiposity in Children. Heliyon. 2016 Jan;2(1):e00058. PMID: 26878067

Weinstein JJ, Rogers BP, Taylor WD, Boyd BD, Cowan RL, Shelton KM, Salomon RM. Effects of acute tryptophan depletion on raphé functional connectivity in depression. Psychiatry Res. 2015 Nov 30;234(2):164-71. doi: 10.1016/j.pscychresns.2015.08.015. Epub 2015 Sep 14. PMID: 26411798

Monroe TB, Misra S, Habermann RC, Dietrich MS, Bruehl SP, Cowan RL, Newhouse PA, Simmons SF. Specific Physician Orders Improve Pain Detection and Pain Reports in Nursing Home Residents: Preliminary Data. Pain Manag Nurs. 2015 Oct;16(5):770-80. doi: 10.1016/j.pmn.2015.06.002. Epub 2015 Aug 8. PMID: 26259882

Monroe TB, Gore JC, Bruehl SP, Benningfield MM, Dietrich MS, Chen LM, Newhouse P, Fillingim R, Chodkowski B, Atalla S, Arrieta J, Damon SM, Blackford JU, Cowan RL. Sex differences in psychophysical and neurophysiological responses to pain in older adults: a cross-sectional study. Biol Sex Differ. 2015 Nov 16;6:25. doi: 10.1186/s13293-015-0041-y. eCollection 2015. PMID: 26579217

Watkins TJ, Di Iorio CR, Olatunji BO, Benningfield MM, Blackford JU, Dietrich MS, Bhatia M, Theiss JD, Salomon RM, Niswender K, Cowan RL. Disgust proneness and associated neural substrates in obesity. Soc Cogn Affect Neurosci. 2015 Oct 10. pii: nsv129. [Epub ahead of print] PMID: 26454815

Dang LC, Samanez-Larkin GR, Young JS, Cowan RL, Kessler RM, Zald DH. Caudate asymmetry is related to attentional impulsivity and an objective measure of ADHD-like attentional problems in healthy adults. Brain Struct Funct. 2014 Oct 1. [Epub ahead of print] PubMed PMID: 25269835; PubMed Central PMCID: PMC4433431

Kessler RM, Zald DH, Ansari MS, Li R, Cowan RL. Changes in dopamine release and dopamine D2/3 receptor levels with the development of mild obesity. Synapse. 2014 Jul;68(7):317-20. doi: 10.1002/syn.21738. Epub 2014 Mar 17.

Kessler RM, Seibyl J, Cowan RL, Zald D, Young JS, Ansari MS, Stabin MG. Radiation Dosimetry of 18F-FPEB in Humans. J Nucl Med. 2014 May 5. [Epub ahead of print]

Tramontana M, Cowan RL, Zald DH, Prokop JW, Guillamondegui O. Traumatic Brain Injury-Related Attention Deficits: Treatment Outcomes with Lisdexamfetamine Dimesylate (Vyvanse). Accepted May 28, 2014, Brain Injury.

Clauss JA, Avery SN, Vanderklok RM, Rogers BP, Cowan RL, Benningfield MM, Blackford JU. Neurocircuitry underlying risk and resilience to social anxiety disorder. Depress Anxiety. 2014 Apr 17. doi: 10.1002/da.22265. [Epub ahead of print]

Blackford, JU, Clauss, JA, Avery, SN, Cowan RL, Benningfield, MM, and VanDerKlok, RM (in press). Amygdala-cingulate intrinsic connectivity is associated with degree of social inhibition.  Biological Psychology. 2014 May;99:15-25.

Clauss JA, Seay AL, VanDerKlok RM, Cao A, Cowan RL, Benningfield MM, Blackford JU. Structural and functional bases of inhibited temperament. (Accepted January 10, 2014). Social and Cognitive Affective Neuroscience. 2014 Mar 11. [Epub ahead of print]

Savage SW, Zald DH, Cowan RL, Volkow ND, Marks-Shulman PA, Kessler RM, Abumrad NN, Dunn JP. Regulation of novelty seeking by midbrain dopamine D2/D3 signaling and ghrelin is altered in obesity. (Accepted January 9, 2014), Obesity. 2014 Jan 11. doi: 10.1002/oby.20690. [Epub ahead of print]

Benningfield MM, Blackford JU, Ellsworth ME, Samanez-Larkin GR, Martin PR, Cowan RL, Zald DH. Caudate responses to reward anticipation associated with delay discounting behavior in healthy youth. (Accepted October 30, 2013), Developmental Cognitive Neuroscience. 2014 Jan;7:43-52.

Monroe TB, Misra S, Habermann RC, Dietrich MS, Cowan RL, Simmons S. Pain Reports and Pain Medication Treatment in Nursing Home Residents with and without Dementia. Accepted, July 1, 2013, Geriatrics and Gerontology International. 2013 Sep 11. doi: 10.1111/ggi.12130. [Epub ahead of print]

Charboneau EJ, Dietrich MS, Park S, Cao A, Watkins TJ, Martin PR, Buchowski MS, Blackford JU, Benningfield M, Cowan RL. Cannabis cue-induced brain activation correlates with drug craving in limbic and visual salience regions. (Accepted June 17, 2013), Psychiatry Research: Neuroimaging. 2013 Nov 30;214(2):122-31.

Salomon, RM, Cowan RL. Oscillatory serotonin function in depression. (Accepted April 2013), Synapse. 2013 Nov;67(11):801-20.

Todd Monroe, Michael Carter, Karen Feldt, Mary S. Dietrich, Ronald L. Cowan. Pain and Hospice Care in Nursing Home Residents with Dementia and Terminal Cancer.

(Accepted, January 22, 2013). Geriatrics & Gerontology International. 2013 Oct;13(4):1018-25.

Human ecstasy (MDMA) polydrug users have altered brain activation during semantic processing. Watkins, Tristan; Raj, Vidya; Lee, Junghee; Dietrich, Mary; Cao, Aize; Blackford, Jennifer; Salomon, Ronald; Park, Sohee; Benningfield, Margaret; Di Iorio, Christina; Cowan, Ronald. (Accepted November 26, 2012), Psychopharmacology (Berl). 2013 May;227(1):41-54.

Monroe, T., Herr, K., Mion, L, Cowan, RL. Ethical Considerations in Pain Research in Cognitively Impaired Older Adults. International Journal of Nursing Studies. (Accepted 11 November 2012), International Journal of Nursing Studies. 2013 Sep;50(9):1283-7.

GR Samanez-Larkin, JW Buckholtz, RL Cowan, ND Woodward, R Li,  MS Ansari, CM Arrington, RM Baldwin, CE Smith, MT Treadway, RM Kessler, DH Zald. A thalamic-cortical-striatal dopamine network for psychostimulant-enhanced human cognitive flexibility. Accepted November 1, 2012. Biological Psychiatry. 2013 Jul 15;74(2):99-105.

Monroe, T., Chin, L., Gore, J., Mion, L., Cowan, RL.  Pain in People with Alzheimer’s Disease: Potential Applications for Psychophysical and Neurophysiological Research. (Accepted October 10, 2012). J Geriatr Psychiatry Neurol. 2012 Dec;25(4):240-55.

Monroe, T. Dornan, A., Carter, M., Cowan, RL. Using Functional Magnetic Resonance Imaging to Describe Pain Pathways in the ‘Oldest Old’: A Case Study of a Healthy 97-year-old Female. (Accepted, September 10, 2012) The Journal of Pain and Relief. 2012 111.

Benningfield, Margaret and Cowan RL. Brain serotonin function in MDMA (ecstasy) users: evidence for persisting neurotoxicity. Neuropsychopharmacology Hot Topics. Accepted 08August2012. 2013 Jan;38(1):253-5.

Todd B. Monroe, Heidi Kenaga, Mary S. Dietrich, Michael A. Carter, Ronald L. Cowan. The Prevalence of Employed Nurses Identified or Enrolled in Substance Use Monitoring Programs. Accepted, 28 JUNE 2012, Nurs Res. 2013 Jan-Feb;62(1):10-5.

Michael Treadway, Joshua Buckholtz, Ronald Cowan, Neil Woodward, Rui Li, M. Ansari, Ashley Schwartzman, Ronald Baldwin, Robert Kessler, and David Zald. Dopaminergic Mechanisms of Individual Differences in Human Effort-Based Decision-Making. Accepted, 06MAR2012, Journal of Neuroscience. 2012 May 2;32(18):6170-6.

Carissa J Cascio, Jennifer H Foss-Feig, Jessica L Heacock, Cassandra R Newsom, Ronald L Cowan, Margaret M Benningfield, Baxter P Rogers and Aize Cao. Response of Neural Reward Regions to Food Cues in Autism Spectrum Disorders. Accepted, 29FEB2012, Journal of Neurodevelopmental Disorders. 2012 May 17;4(1):9.

Eckstrand, K., Ding, Z., Dodge, N., Cowan, R, Jacobson, J., Jacobson, S., Avison, M. Persistent Dose-dependent Changes in Brain Structure in Young Adults with Low-to-Moderate Alcohol Exposure in Utero”  Alcoholism: Clinical and Experimental Research (Accepted 09FEB2012). 2012 Nov;36(11):1892-902.

Monroe, T., Carter, M., Feldt, K., Tolley, B., & Cowan, R. Assessing Advanced Cancer Pain in Older Adults with Dementia at the End-of-Life. J Adv Nurs. 2012 Sep;68(9):2070-8.

Di Iorio CR, Watkins TJ, Dietrich MS, Cao A, Blackford JU, Rogers BP, Ansari MS, Baldwin RM, Li R, Kessler RM, Salomon RM, Benningfield M, Cowan RL. Evidence for chronically altered cortical serotonin function in human female recreational ecstasy (MDMA) polydrug users. Archives of General Psychiatry. 2012 Apr;69(4):399-409.

Salomon RM, Karageorgiou J, Dietrich MS, McLellan JY, Charboneau EJ, Blackford JU, Cowan RL. MDMA (Ecstasy) association with impaired fMRI BOLD thalamic coherence and functional connectivity. Drug and Alcohol Dependence. 2012 Jan 1;120(1-3):41-7.

Buchowski MS, Meade NN, Charboneau E, Park S, Dietrich MS, Cowan RL, Martin PR. Aerobic Exercise Training Reduces Cannabis Craving and Use in Non-treatment Seeking Cannabis-Dependent Adults. PLoS ONE. 2011 Mar 8;6(3):e17465.

Monroe, T., Hamza, H., Stocks, G., Scimeca, P., Cowan, R. The misuse and abuse of propofol. Substance Use and Misuse. 2011 46(9), 1199-205.

Bauernfeind AL, Dietrich MS, Blackford JU, Charboneau EJ, Lillevig JG, Cannistraci CJ, Woodward ND, Cao A, Watkins T, Di Iorio CR, Cascio C, Salomon RM, Cowan RL. Human Ecstasy use is associated with increased cortical excitability: an fMRI study. Neuropsychopharmacology. 2011 May;36(6):1127-41.

Salomon RM, Cowan RL, Rogers BP, Dietrich MS, Bauernfeind AL, Kessler RM Gore JC. Time series fMRI measures detect changes in pontine raphé following acute tryptophan depletion. Psychiatry Research: Neuroimaging, 2011, 191:112-121. Epub Jan 13, 2011.

Woodward ND, Cowan RL, Park S, Ansari MS, Baldwin RM, Li R, Doop M, Kessler RM, Zald DH. Correlation of Individual Differences in Schizotypal Personality Traits With Amphetamine-Induced Dopamine Release in Striatal and Extrastriatal Brain Regions. Am J Psychiatry. 2011 Apr;168(4):418-26.

Clauss J, Cowan RL, Blackford JU.  Expectation and temperament moderate amygdala and dorsal anterior cingulate cortex responses to fear faces. Cognitive, Affective, and Behavioral Neuroscience, 2011 Mar;11(1):13-21.

Blackford JU, Avery SN, Cowan RL, Zald DH. Sustained amygdala response to both novel and newly familiar faces characterizes inhibited temperament. Social Cognitive and Affective Neuroscience. 2011 6, 621-629.

Buckholtz, J, Treadway M, Woodward Neil D, Li, R, Ansari M, Baldwin R, Schwartzman A, Shelby E, Smith CE, Kessler R, Cowan RL, Zald D. Dopaminergic Network Differences in Human Impulsivity.  Science. 329:532, 2010.

Dunn J, Cowan RL, Volkow ND, Kessler R, Zald D, Abumrad N. Decreased dopamine type 2 receptor availability after bariatric surgery.    Brain Research. 1350:123-130, 2010.

The interrelationship of dopamine D2-like receptor availability in striatal and extrastriatal brain regions in healthy humans: A principal component analysis of [(18)F-Fallypride] binding. Zald DH, Woodward ND, Riccardi P, Ansari MS, Baldwin RM, Cowan RL, Smith CE, Hakyemez H, Li R, Kessler RM.  Neuroimage. 2010 May 15;51(1):53-62.

Joshua W. Buckholtz, Michael T. Treadway, Ronald Cowan, Stephen D. Benning, Rui Li, M. Sib Ansari, Ronald Baldwin, Ashley Schwartzman, Evan Shelby, C.E. Smith, David Cole, Robert M. Kessler, David H. Zald.  Mesolimbic Dopamine Reward System Hypersensitivity in Individuals With Psychopathic Traits.  Nature Neuroscience. 2010 Apr;13(4):419-21.

Castellanos-Hon E, Charboneau EJ, MS Dietrich, Mogg K, Bradley B, Cowan RL.  Obese human adults have increased visual attentional salience for food cues.  International Journal of Obesity. 2009 Sep;33(9):1063-73.

J. Karageorgiou, M. Dietrich, Neil D. Woodward, Evonne J Charboneau, Jennifer U. Blackford, Ronald Salomon, Cowan RL.  Prior MDMA (Ecstasy) use is Associated with Increased Basal Ganglia-Thalamocortical Circuit Activation During Motor Task Performance in Humans: An fMRI Study.  Neuroimage. 2009 Jul 1;46(3):817-26.

Woodward ND, Zald DH, Ding Z, Riccardi P, Ansari MS, Baldwin RM, Cowan RL, Li R, Kessler RM.  Cerebral morphology and dopamine D2/D3 receptor distribution in humans: A combined [18F]fallypride and voxel-based morphometry study. Neuroimage, 2009 May 15;46(1):31-8.

Raj V, Liang HC, Woodward ND, Bauernfeind AL, Lee J, Dietrich MS, Park S, Cowan RL.  Altered regional brain activation during semantic processing in human MDMA users: a 3 T fMRI BOLD study. J Psychopharmacol, 2010 Feb;24(2):187-201.

Zald DH, Cowan RL, Riccardi P, Baldwin R, Sib Ansari M, Li R, Shelby ES, Smith CE, McHugo M, & Kessler RM.  Midbrain dopamine receptor availability is inversely associated with novelty seeking traits in humans.  J Neurosci, 2008 Dec 31;28(53):14372-8.

Cowan RL, Joers JM, Dietrich MS.  N-acetylaspartate (NAA) correlates inversely with cannabis use in a frontal language processing region of neocortex in MDMA (Ecstasy) Polydrug Users: a 3 Tesla Magnetic Resonance Spectroscopy Study.  Pharmacol Biochem Behav. 2009 Mar;92(1):105-10.

Cowan RL, Roberts DM, Joers JM. Neuroimaging in human MDMA (Ecstasy) users: A cortical model.  Proceedings of the International Drug Abuse Research Society.  Ann N Y Acad Sci. 2008 Oct;1139:291-8.

Cowan RL, Wood J, Dietrich M, Frederick B de B, Lukas S E, Renshaw P F.  Differential effects of d-amphetamine on photic activation to blue light: a novel BOLD fMRI assay of human central nervous system dopamine function.  SYNAPSE, 2008 Jan 31;62(4):268-272.

Cowan RL, NR Bolo NR, Dietrich M, Haga E, Lukas SE, Renshaw PF.  Occipital cortical proton MRS at 4 Tesla in human MDMA polydrug users.  Psychiatry Research: Neuroimaging, 2007 155(3):179-188.

Cowan RL.  Neuroimaging Research in Human MDMA Users: A Review. Psychopharmacology, 2007 189(4):539-536.

Cowan RL, Haga E, Frederick  B deB,  Dietrich MS, Vimal RLP, Lukas SE, Renshaw PF.  MDMA use is associated with increased spatial BOLD fMRI visual cortex activation in human MDMA users.  Pharmacology Biochemistry and Behavior 2006 84(2)219-228.

Schiffer F, Mottaghy FM, Vimal RLP, Renshaw PF, Cowan RL, Pascual-Leone A, Teicher M, Valente E, Rohan M.  Lateral Visual Field Stimulation Reveals Extrastriate Cortical Activation in the Contralateral Hemisphere:  A BOLD fMRI Study.  Psychiatry Res. 2004 May 30;131(1):1-9.

Cowan RL, IK Lyoo, SW Kong, SM Sung, E Haga, SE Lukas, PF Renshaw Reduced Cortical Gray Matter Density in Human MDMA (Ecstasy) Users: A Voxel-Based Morphometry Study.  Drug and Alcohol Dependence, 2003 72:225-235.

Cowan RL, Frederick B de B, Rainey M, Levin JM, Maas LC., Bang J, Hennen J, Lukas SE, and Renshaw PF.  Sex Differences in Response to Red and Blue Light in Human Primary Visual Cortex: A BOLD fMRI Study.  Psychiatry Research: Neuroimaging, 2000 100:129-138.

Cowan RL, Sesack SR, Van Bockstaele EJ, Branchereau P, Chan J and Pickel VM.  Analysis of synaptic inputs and targets of physiologically characterized neurons in rat frontal cortex:  Combined in vivo intracellular recording and immunolabeling.  Synapse 1994;17:101-114.

Cowan RL and Wilson CJ.  Spontaneous firing patterns and axonal projections of single corticostriatal neurons in the rat medial agranular cortex.  Journal of Neurophysiology 1994;71:17-32.

Cowan RL, Wilson CJ, Emson PC and Heizmann CW.  Parvalbumin-containing GABAergic interneurons in the rat neostriatum.  Journal of Comparative Neurology 1990;302:197-205.

Cowan RL, Reimao R, Lemmi H and Belluomini J.  Analysis of thermocouples and expired C02 monitors in clinical polysomnography.  Sleep Watchers (formerly Journal of the Association of Polysomonographic Technologists), 1988.

Cowan RL, Reimao R, Lemmi H, and Vander Zwagg R.  Narcolepsia e inicio subito de periodos REM apos despertares nocturnos.  Arquivos De Neuro-Psiquiatria 1985;43(3):229-233.

Reimao, R., Akiskal HS, Cowan RL, Lemmi H and Belluomini J.  Polissonografia da disfuncao sexual masculina datos normativos da impotencia nao-organica.  Review of Brasilian Neurology1985;21(3):105-107.