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Distinguishing between major depressive disorder and obsessive–compulsive disorder in children by measuring regional cortical thickness
Open accessAbstract
CONTEXT: Cortical abnormalities have been noted in previous studies of major depressive disorder (MDD). OBJECTIVE: To hypothesize differences in regional cortical thickness among children with MDD, children with obsessive-compulsive disorder (OCD), and healthy controls. DESIGN: Cross-sectional study of groups. SETTING: Children's Hospital of Michigan in Detroit. PARTICIPANTS: A total of 24 psychotropic drug-naive pediatric patients with MDD (9 boys and 15 girls), 24 psychotropic drug-naive pediatric outpatients with OCD (8 boys and 16 girls), and 30 healthy controls (10 boys and 20 girls). INTERVENTION: Magnetic resonance imaging. MAIN OUTCOME MEASURE: Cortical thickness. RESULTS: In the right hemisphere of the brain, the pericalcarine gyrus was thinner in patients with MDD than in outpatients with OCD (P = .002) or healthy controls (P = .04), the postcentral gyrus was thinner in patients with MDD than in outpatients with OCD (P = .002) or healthy controls (P = .02), and the superior parietal gyrus was thinner in patients with MDD than in outpatients with OCD (P = .008) or healthy controls (P = .03). The outpatients with OCD and the healthy controls did not differ in these regions of the brain. The temporal pole was thicker in patients with MDD than in outpatients with OCD (P < .001) or healthy controls (P = .01), both of which groups did not differ in temporal pole thickness. The cuneus was thinner in patients with MDD than in outpatients with OCD (P = .008), but it did not differ from that in healthy controls. In the left hemisphere, the supramarginal gyrus was thinner in both patients with MDD (P = .04) and outpatients with OCD (P = .01) than in healthy controls, and the temporal pole was thicker in patients with MDD than in both healthy controls and outpatients with OCD (P < .001). CONCLUSIONS: To our knowledge, this is the first study to explore cortical thickness in pediatric patients with MDD. Although differences in some regions of the brain would be expected given neurobiological models of MDD, our study highlights some unexpected regions (ie, supramarginal and superior parietal gyri) that merit further investigation. These results underscore the need to expand exploration beyond the frontal-limbic circuit.
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“This analysis also showed associations between depression scores and superior parietal lobule and parahippocampal gyrus activity, two regions that have shown depression related phenotypes in previous studies (Fallucca et al., 2011; Milne et al., 2012).”
From Reduced nucleus accumbens reactivity and adolescent depression following early-life stress (2013) · cites this paper as Fallucca et al., 2011
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Cites
Desikan, R. S., Ségonne, F., Fischl, B., Quinn, B. T., Dickerson, B. C., Blacker, D., Buckner, R. L., Dale, A. M., Maguire, R. P., Hyman, B. T., et al. (2006) · NeuroImage · doi:10.1016/j.neuroimage.2006.01.021 · Cited by 13,324
Kessler, R. C., Chiu, W. T., Demler, O., & Walters, E. E. (2005) · Archives of General Psychiatry · doi:10.1001/archpsyc.62.6.617 · Cited by 12,052
The assessment of anxiety states by rating
HAMILTON, M. (1959) · British Journal of Medical Psychology · doi:10.1111/j.2044-8341.1959.tb00467.x · Cited by 11,455
Cortical Surface-Based Analysis
Dale, A. M., Fischl, B., & Sereno, M. I. (1999) · NeuroImage · doi:10.1006/nimg.1998.0395 · Cited by 10,910
KAUFMAN, J., BIRMAHER, B., BRENT, D., RAO, U., FLYNN, C., MORECI, P., WILLIAMSON, D., & RYAN, N. (1997) · Journal of the American Academy of Child & Adolescent Psychiatry · doi:10.1097/00004583-199707000-00021 · Cited by 10,148
Development of a Rating Scale for Primary Depressive Illness
Hamilton, M. (1967) · British Journal of Social and Clinical Psychology · doi:10.1111/j.2044-8260.1967.tb00530.x · Cited by 8,410
Cortical Surface-Based Analysis
Fischl, B., Sereno, M. I., & Dale, A. M. (1999) · NeuroImage · doi:10.1006/nimg.1998.0396 · Cited by 6,147
Measuring the thickness of the human cerebral cortex from magnetic resonance images
Fischl, B. R., & Dale, A. M. (2000) · Proceedings of the National Academy of Sciences · doi:10.1073/pnas.200033797 · Cited by 5,995
Automatically Parcellating the Human Cerebral Cortex
Fischl, B. R. (2003) · Cerebral Cortex · doi:10.1093/cercor/bhg087 · Cited by 4,208
Unbiased average age-appropriate atlases for pediatric studies
Fonov, V., Evans, A. C., Botteron, K., Almli, C. R., McKinstry, R. C., & Collins, D. L. (2011) · NeuroImage · doi:10.1016/j.neuroimage.2010.07.033 · Cited by 2,290
Children's Yale-Brown Obsessive Compulsive Scale: Reliability and Validity
SCAHILL, L., RIDDLE, M. A., McSWIGGIN-HARDIN, M., ORT, S. I., KING, R. A., GOODMAN, W. K., CICCHETTI, D., & LECKMAN, J. F. (1997) · Journal of the American Academy of Child & Adolescent Psychiatry · doi:10.1097/00004583-199706000-00023 · Cited by 2,045
Hippocampal Volume Reduction in Major Depression
Bremner, J. D., Narayan, M., Anderson, E. R., Staib, L. H., Miller, H. L., & Charney, D. S. (2000) · American Journal of Psychiatry · doi:10.1176/ajp.157.1.115 · Cited by 1,670
Rajkowska, G., Miguel-Hidalgo, J. J., Wei, J., Dilley, G., Pittman, S. D., Meltzer, H. Y., Overholser, J. C., Roth, B. L., & Stockmeier, C. A. (1999) · Biological Psychiatry · doi:10.1016/s0006-3223(99)00041-4 · Cited by 1,477
A functional anatomical study of unipolar depression
Drevets, W., Videen, T., Price, J., Preskorn, S., Carmichael, S., & Raichle, M. (1992) · The Journal of Neuroscience · doi:10.1523/jneurosci.12-09-03628.1992 · Cited by 1,266
McKinnon, M. C., Yucel, K., Nazarov, A., & MacQueen, G. M. (2009) · Journal of Psychiatry and Neuroscience · doi:10.1139/jpn.0905 · Cited by 742
Hippocampal Changes in Patients With a First Episode of Major Depression
Frodl, T., Meisenzahl, E. M., Zetzsche, T., Born, C., Groll, C., Jäger, M., Leinsinger, G. L., Bottlender, R., Hahn, K. M., & Möller, H. (2002) · American Journal of Psychiatry · doi:10.1176/appi.ajp.159.7.1112 · Cited by 528
Volumetric reduction in left subgenual prefrontal cortex in early onset depression
Botteron, K. N., Raichle, M. E., Drevets, W. C., Heath, A. C., & Todd, R. D. (2002) · Biological Psychiatry · doi:10.1016/s0006-3223(01)01280-x · Cited by 371
Enlargement of the Amygdala in Patients with a First Episode of Major Depression
Frodl, T., Meisenzahl, E., Zetzsche, T., Bottlender, R., Born, C., Groll, C., Jäger, M., Leinsinger, G., Hahn, K., & Möller, H.-J. (2002) · Biological Psychiatry · doi:10.1016/s0006-3223(01)01359-2 · Cited by 316
Cortical thinning in persons at increased familial risk for major depression
Peterson, B. S., Warner, V., Bansal, R., Hongtu Zhu, B., Hao, X., Liu, J., Durkin, K., Adams, P., WICKRAMARATNE, P. J., & Weissman, M. M. (2009) · Proceedings of the National Academy of Sciences · doi:10.1073/pnas.0805311106 · Cited by 311
Regional cerebral glucose utilization in patients with a range of severities of unipolar depression
Kimbrell, T. A., Ketter, T. A., George, M. S., Little, J. T., Benson, B. E., Willis, M. W., Herscovitch, P., & Post, R. M. (2002) · Biological Psychiatry · doi:10.1016/s0006-3223(01)01216-1 · Cited by 303
Dysfunction in the neural circuitry of emotional self-regulation in major depressive disorder
Beauregard, M., Paquette, V., & Le´vesque, J. (2006) · Neuroreport · doi:10.1097/01.wnr.0000220132.32091.9f · Cited by 254
ROSENBERG, D. R., MIRZA, Y., RUSSELL, A., TANG, J., SMITH, J. M., BANERJEE, S. P., BHANDARI, R., ROSE, M., IVEY, J., BOYD, C., et al. (2004) · Journal of the American Academy of Child & Adolescent Psychiatry · doi:10.1097/01.chi.0000132812.44664.2d · Cited by 246
Self-citationPeng, J., Liu, J., Nie, B., Li, Y., Shan, B., Wang, G., & Li, K. (2010) · European Journal of Radiology · doi:10.1016/j.ejrad.2010.04.006 · Cited by 245
White Matter Abnormalities in Obsessive-compulsive Disorder
Szeszko, P. R., Ardekani, B. A., Ashtari, M., Malhotra, A. K., Robinson, D. G., Bilder, R. M., & Lim, K. O. (2005) · Archives of General Psychiatry · doi:10.1001/archpsyc.62.7.782 · Cited by 237
Evaluation of automated brain MR image segmentation and volumetry methods
Klauschen, F., Goldman, A. L., Barra, V., Meyer‐Lindenberg, A., & Lundervold, A. (2008) · Human Brain Mapping · doi:10.1002/hbm.20599 · Cited by 228
Kondo, H., Saleem, K., & Price, J. (2003) · The Journal of comparative neurology · doi:10.1002/cne.10842 · Cited by 212
Neural correlates of clinical symptoms and cognitive dysfunctions in obsessive–compulsive disorder
Kwon, J. S., Kim, J.-J., Lee, D. W., Lee, J. S., Lee, D. S., Kim, M.-S., Lyoo, I. K., Cho, M. J., & Lee, M. C. (2003) · Psychiatry Research: Neuroimaging · doi:10.1016/s0925-4927(02)00104-x · Cited by 205
Menzies, L. A., Williams, G. B., Chamberlain, S. R., Ooi, C., Fineberg, N. A., Suckling, J., Sahakian, B. J., Robbins, T. W., & Bullmore, E. T. (2008) · American Journal of Psychiatry · doi:10.1176/appi.ajp.2008.07101677 · Cited by 199
Hippocampal volume in early onset depression
MacMaster, F. P., & Kusumakar, V. (2004) · BMC Medicine · doi:10.1186/1741-7015-2-2 · Cited by 194
Self-citationPrefrontal-subcortical and limbic circuit mediation of major depressive disorder
Brody, A. L., Barsom, M. W., Bota, R. G., & Saxena, S. (2001) · Seminars in Clinical Neuropsychiatry · doi:10.1053/scnp.2001.21837 · Cited by 181
Cognitive dysfunction in obsessive-compulsive disorder
Okasha, A., Rafaat, M., Mahallawy, N., Nahas, G. E., Dawla, A. S. E., Sayed, M., & Kholi, S. E. (2000) · Acta Psychiatrica Scandinavica · doi:10.1111/j.1600-0447.2000.tb10926.x · Cited by 170
Cognitive dysfunction in obsessive-compulsive disorder
Okasha, A., Rafaat, M., Mahallawy, N., Nahas, G. E., Dawla, A. S. E., Sayed, M. E., & Kholi, S. E. (2000) · Acta Psychiatrica Scandinavica · doi:10.1034/j.1600-0447.2000.101004281.x · Cited by 168
Amygdala and Hippocampal Volumes in Familial Early Onset Major Depressive Disorder
MacMaster, F. P., Mirza, Y., Szeszko, P. R., Kmiecik, L. E., Easter, P. C., Taormina, S. P., Lynch, M. A., Rose, M., Moore, G. J., & Rosenberg, D. R. (2007) · Biological Psychiatry · doi:10.1016/j.biopsych.2007.05.005 · Cited by 167
Self-citationSchienle, A., Schäfer, A., Stark, R. M., Walter, B., & Vaitl, D. (2005) · International Journal of Psychophysiology · doi:10.1016/j.ijpsycho.2004.12.013 · Cited by 160
Keedwell, P., Drapier, D., Surguladze, S., Giampietro, V, Brammer, M., & Phillips, M. (2009) · Journal of Psychopharmacology · doi:10.1177/0269881108093589 · Cited by 149
Szeszko, P. R., Christian, C., MacMaster, F., Lencz, T., Mirza, Y., Taormina, S. P., Easter, P., Rose, M., Michalopoulou, G. A., & Rosenberg, D. R. (2008) · American Journal of Psychiatry · doi:10.1176/appi.ajp.2008.08010033 · Cited by 143
Self-citationThe effect of template choice on morphometric analysis of pediatric brain data
Yoon, U., Fonov, V., Pérusse, D., & Evans, A. C. (2009) · NeuroImage · doi:10.1016/j.neuroimage.2008.12.046 · Cited by 142
Comparison of landmark-based and automatic methods for cortical surface registration
Pantazis, D., Joshi, A. A., Jiang, J., Shattuck, D. W., Bernstein, L. E., Damásio, H., & Leahy, R. M. (2009) · NeuroImage · doi:10.1016/j.neuroimage.2009.09.027 · Cited by 131
Prefrontal Cortical Volume in Childhood-Onset Major Depression
Nolan, C., Moore, G. J., Madden, R., Farchione, T. R., Bartoi, M. G., Lorch, E., Stewart, C. M., & Rosenberg, D. (2002) · Archives of General Psychiatry · doi:10.1001/archpsyc.59.2.173 · Cited by 123
Self-citationProton magnetic resonance spectroscopic imaging in pediatric major depression
Farchione, T. R., Moore, G. J., & Rosenberg, D. R. (2002) · Biological Psychiatry · doi:10.1016/s0006-3223(02)01340-9 · Cited by 108
Self-citationMorphometric evidence for neuronal and glial prefrontal cell pathology in major depression
Dilley, G. E., Rajkowska, G., Overholser, J. C., Meltzer, H. Y., Miguel-Hidalgo, J. J., Stockmeier, C. A., Wei, J., Roth, B. L., & Pittman, S. D. (2019) · Carolina Digital Repository (University of North Carolina at Chapel Hill) · doi:10.17615/ey62-1r56 · Cited by 101
PET imaging in obsessive compulsive disorder with and without depression.
Baxter, L. R., Schwartz, J. M., Guzé, B. H., Bergman, K., & Szuba, M. P. (1990) · PubMed · Cited by 94
An MRI study of the superior temporal subregions in patients with current and past major depression
Takahashi, T., Yücel, M., Lorenzetti, V., Walterfang, M., Kawasaki, Y., Whittle, S., Suzuki, M., Pantelis, C., & Allen, N. B. (2009) · Progress in Neuro-Psychopharmacology and Biological Psychiatry · doi:10.1016/j.pnpbp.2009.10.005 · Cited by 93
Smith, E. A., Russell, A., Lorch, E., Banerjee, S. P., Rose, M., Ivey, J., Bhandari, R. P., Moore, G. J., & Rosenberg, D. R. (2003) · Biological Psychiatry · doi:10.1016/s0006-3223(03)00474-8 · Cited by 91
Self-citationRubín, R. T., Ananth, J., Villanueva‐Meyer, J., Trajmar, P. G., & Mena, I. (1995) · Biological Psychiatry · doi:10.1016/0006-3223(94)00305-m · Cited by 89
Mirza, Y., O’Neill, J., Smith, E. A., Russell, A., Smith, J. M., Banerjee, S. P., Bhandari, R. P., Boyd, C. C., Rose, M., Ivey, J., et al. (2006) · Journal of Child Neurology · doi:10.1177/08830738060210020201 · Cited by 86
Self-citationMRI study of the pituitary gland in adolescent depression
MacMaster, F. P., & Kusumakar, V. (2004) · Journal of Psychiatric Research · doi:10.1016/j.jpsychires.2003.11.001 · Cited by 85
Self-citationSpatiotemporal brain dynamics during preparatory set shifting: MEG evidence
Periañez, J. A., Maestú, F., Barceló, F., Fernández, A., Amo, C., & Alonso, T. O. (2003) · NeuroImage · doi:10.1016/j.neuroimage.2003.10.008 · Cited by 84
Gilbert, A. R., Keshavan, M. S., Diwadkar, V., Nutche, J., MacMaster, F., Easter, P. C., Buhagiar, C. J., & Rosenberg, D. R. (2008) · Neuroscience Letters · doi:10.1016/j.neulet.2008.02.011 · Cited by 70
Self-citationPituitary gland volume in adolescent and young adult bipolar and unipolar depression
MacMaster, F. P., Leslie, R. A., Rosenberg, D. R., & Kusumakar, V. (2008) · Bipolar Disorders · doi:10.1111/j.1399-5618.2008.00476.x · Cited by 65
Self-citationPituitary Volume in Treatment-Naïve Pediatric Major Depressive Disorder
MacMaster, F. P., Russell, A., Mirza, Y., Keshavan, M. S., Taormina, S. P., Bhandari, R., Boyd, C., Lynch, M., Rose, M., Ivey, J., et al. (2006) · Biological Psychiatry · doi:10.1016/j.biopsych.2006.04.013 · Cited by 61
Self-citationQuantitative evaluation of LDDMM, FreeSurfer, and CARET for cortical surface mapping
zhong, J., Phua, D. Y., & Qiu, A. (2010) · NeuroImage · doi:10.1016/j.neuroimage.2010.03.085 · Cited by 56
Left Medial Temporal Cytosolic Choline in Early Onset Depression
Kusumakar, V., MacMaster, F. P., Gates, L., Sparkes, S. J., & Khan, S. C. (2001) · The Canadian Journal of Psychiatry · doi:10.1177/070674370104601009 · Cited by 54
Self-citationAn fMRI study in monozygotic twins discordant for obsessive–compulsive symptoms
den Braber, A., Ent, D. V. ‘., Blokland, G. A. M., Grootheest, D. S. V., Cath, D. C., Veltman, D. J., de Ruiter, M. B., & Boomsma, D. I. (2008) · Biological Psychology · doi:10.1016/j.biopsycho.2008.01.010 · Cited by 52
Risk for depression is associated with neural biases in emotional categorisation
Chan, S. W. Y., Harmer, C. J., Goodwin, G. M., & Norbury, R. (2008) · Neuropsychologia · doi:10.1016/j.neuropsychologia.2008.05.030 · Cited by 46
Brain SPECT study of common ground between hypothyroidism and depression
Krausz, Y., Freedman, N., Lester, H., Barkai, G., Levin, T. T., Bocher, M., Chisin, R., Lerer, B., & Bonne, O. B. (2006) · The International Journal of Neuropsychopharmacology · doi:10.1017/s1461145706006481 · Cited by 44
Medial temporal N-acetyl-aspartate in pediatric major depression
MacMaster, F. P., Moore, G. J., Russell, A., Mirza, Y., Taormina, S. P., Buhagiar, C. J., & Rosenberg, D. R. (2008) · Psychiatry Research Neuroimaging · doi:10.1016/j.pscychresns.2007.12.022 · Cited by 26
Self-citationLimbic Paroxysmal Magnetoencephalographic Activity in 12 Obsessive-Compulsive Disorder Patients
Amo, C., QUESNEY, L. F., Ortiz, T., Maestú, F., Fernández, A., López‐Ibor, M. I., & López-Ibor, J. J. (2004) · The Journal of Clinical Psychiatry · doi:10.4088/jcp.v65n0203 · Cited by 20
White matter abnormalities in obsessive-compulsive disorder: A diffusion tensor imaging study
Saito, Y., Nobuhara, K., Okugawa, G., Takase, K., Tajika, A., Sugimoto, T., Kurokawa, H., Ikeda, K., Sawada, S., & Kinoshita, T. (2007) · European Psychiatry · doi:10.1016/j.eurpsy.2007.01.997 · Cited by 17
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Hasin, D., Fenton, M., & Weissman, M. (2011) · doi:10.1002/9780470976739.ch17 · Cited by 14
Cortical thinning in persons at increased familial risk for major depression
Zhu, H., Bansal, R., Adams, P. B., et al. (2020) · Carolina Digital Repository (University of North Carolina at Chapel Hill) · doi:10.17615/y5vs-f327 · Cited by 7
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Metadata
- Authors
- Fallucca, E., MacMaster, F. P., Haddad, J., Easter, P., Dick, R., May, G., Stanley, J. A., Rix, C., & Rosenberg, D. R.
- Affiliations
- Wayne State University (US)
- University of Calgary (CA)
- Venue
- Archives of General Psychiatry
- Publisher
- American Medical Association (AMA)
- Published
- 2011-05-02
- Volume
- 68
- Issue
- 5
- Pages
- 527
- ISSN
- 0003-990X (ISSN-L)
- PMC
- PMC4777351
- OpenAlex
- W1994823296
- Cited by
- 113
- References
- 59
- Citations by year
- 2026: 2 · 2025: 3 · 2024: 3 · 2023: 4 · 2022: 2 · 2021: 50 · 2020: 3 · 2019: 5 · 2018: 5 · 2017: 5 · 2016: 5 · 2015: 6 · 2014: 7 · 2013: 3 · 2012: 8
- FWCI
- 4.61
- Type
- journal article
- Language
- en
- Open access
- green
- www.ncbi.nlm.nih.gov
- Locations
- Archives of General Psychiatry (publishedVersion)
- PubMed (publishedVersion)
- PubMed Central (acceptedVersion)
- Funders
- National Institute of Mental Health (K24MH002037, R01MH065122, R01MH059299)
- Topics
- Health Sciences › Medicine › Pharmacology (medical) › Treatment of Major Depression
- Social Sciences › Psychology › Clinical Psychology › Obsessive-Compulsive Spectrum Disorders
- Social Sciences › Psychology › Clinical Psychology › Child and Adolescent Psychosocial and Emotional Development
- Keywords
- major depressive disorder, obsessive-compulsive disorder, childhood depression, cortical thickness, brain structure, superior parietal gyrus, supramarginal gyrus, temporal pole, cuneus, right hemisphere, differential diagnosis, neuroimaging biomarkers, magnetic resonance imaging, cortical thinning, cortical thickening
- MeSH terms
- Adolescent, Brain Mapping, Cerebral Cortex, Child, Cross-Sectional Studies, Major Depressive Disorder, Diagnosis, Differential, Dominance, Cerebral, Female, Humans, Image Processing, Computer-Assisted, Magnetic Resonance Imaging, Male, Obsessive-Compulsive Disorder, Organ Size, Comorbidity, Genetic Predisposition to Disease
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