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The Clinical Significance of Posterior Insular Volume in Adolescent Anorexia Nervosa.

Publication ,  Journal Article
Zucker, NL; Kragel, PA; Wagner, HR; Keeling, L; Mayer, E; Wang, J; Kang, MS; Merwin, R; Simmons, WK; LaBar, KS
Published in: Psychosom Med
2017

OBJECTIVE: The diagnostic criterion disturbance in the experience of the body remains a poorly understood and persistent feature of anorexia nervosa (AN). Increased sophistication in understanding the structure of the insular cortex-a neural structure that receives and integrates visceral sensations with action and meaning-may elucidate the nature of this disturbance. We explored age, weight status, illness severity, and self-reported body dissatisfaction associations with insular cortex volume. METHODS: Structural magnetic resonance imaging data were collected from 21 adolescents with a history of AN and 20 age-, sex-, and body mass index-matched controls. Insular cortical volumes (bilateral anterior and posterior regions) were identified using manual tracing. RESULTS: Volumes of the right posterior insula demonstrated the following: (a) a significant age by clinical status interaction (β = -0.018 [0.008]; t = 2.32, p = .02) and (b) larger volumes were associated with longer duration of illness (r = 0.48, p < .04). In contrast, smaller volumes of the right anterior insula were associated with longer duration of illness (r = -0.50, p < .03). The associations of insular volume with body dissatisfaction were of moderate effect size and also of opposite direction, but a statistical trend in right posterior (r = 0.40, p < .10 in right posterior; r = -0.49, p < .04 in right anterior). CONCLUSIONS: In this exploratory study, findings of atypical structure of the right posterior insular cortex point to the importance of future work investigating the role of visceral afferent signaling in understanding disturbance in body experience in AN.

Duke Scholars

Published In

Psychosom Med

DOI

EISSN

1534-7796

Publication Date

2017

Volume

79

Issue

9

Start / End Page

1025 / 1035

Location

United States

Related Subject Headings

  • Time Factors
  • Psychiatry
  • Magnetic Resonance Imaging
  • Humans
  • Female
  • Child
  • Cerebral Cortex
  • Anorexia Nervosa
  • Age Factors
  • Adolescent
 

Citation

APA
Chicago
ICMJE
MLA
NLM
Zucker, N. L., Kragel, P. A., Wagner, H. R., Keeling, L., Mayer, E., Wang, J., … LaBar, K. S. (2017). The Clinical Significance of Posterior Insular Volume in Adolescent Anorexia Nervosa. Psychosom Med, 79(9), 1025–1035. https://doi.org/10.1097/PSY.0000000000000510
Zucker, Nancy L., Philip A. Kragel, Henry Ryan Wagner, Lori Keeling, Emeran Mayer, Joyce Wang, Min Su Kang, Rhonda Merwin, W Kyle Simmons, and Kevin S. LaBar. “The Clinical Significance of Posterior Insular Volume in Adolescent Anorexia Nervosa.Psychosom Med 79, no. 9 (2017): 1025–35. https://doi.org/10.1097/PSY.0000000000000510.
Zucker NL, Kragel PA, Wagner HR, Keeling L, Mayer E, Wang J, et al. The Clinical Significance of Posterior Insular Volume in Adolescent Anorexia Nervosa. Psychosom Med. 2017;79(9):1025–35.
Zucker, Nancy L., et al. “The Clinical Significance of Posterior Insular Volume in Adolescent Anorexia Nervosa.Psychosom Med, vol. 79, no. 9, 2017, pp. 1025–35. Pubmed, doi:10.1097/PSY.0000000000000510.
Zucker NL, Kragel PA, Wagner HR, Keeling L, Mayer E, Wang J, Kang MS, Merwin R, Simmons WK, LaBar KS. The Clinical Significance of Posterior Insular Volume in Adolescent Anorexia Nervosa. Psychosom Med. 2017;79(9):1025–1035.

Published In

Psychosom Med

DOI

EISSN

1534-7796

Publication Date

2017

Volume

79

Issue

9

Start / End Page

1025 / 1035

Location

United States

Related Subject Headings

  • Time Factors
  • Psychiatry
  • Magnetic Resonance Imaging
  • Humans
  • Female
  • Child
  • Cerebral Cortex
  • Anorexia Nervosa
  • Age Factors
  • Adolescent