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Capacity for 5-HT1A–mediated autoregulation predicts amygdala reactivity

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A Corrigendum to this article was published on 01 February 2007

Abstract

We examined the contribution of 5-HT1A autoreceptors (with [11C]WAY100635 positron emission tomography) to amygdala reactivity (with blood oxygenation level–dependent functional magnetic resonance imaging) in 20 healthy adult volunteers. We found a significant inverse relationship wherein 5-HT1A autoreceptor density predicted a notable 30–44% of the variability in amygdala reactivity. Our data suggest a potential molecular mechanism by which a reduced capacity for negative feedback regulation of 5-HT release is associated with increased amygdala reactivity.

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Figure 1: 5-HT1A autoreceptor availability predicts amygdala reactivity.

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Acknowledgements

We thank S. Hulland, S. Brown and J. James for technical assistance. This work was supported by grants from the National Institute of Mental Health (MH072837 to A.R.H., and MH067602 and MH64625 to C.C.M.) and from the National Alliance for Research on Schizophrenia and Depression (Young Investigator Award to A.R.H.).

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Author notes

  1. C C Meltzer

    Present address: Departments of Radiology, Neurology, and Psychiatry and Behavioral Sciences, Emory University School of Medicine, Atlanta, Georgia, 30322, USA

Authors and Affiliations

  1. Department of Psychiatry, University of Pittsburgh School of Medicine, Pittsburgh, 15213, Pennsylvania, USA

    P M Fisher, C C Meltzer, E L Moses-Kolko & A R Hariri

  2. Department of Neurology, University of Pittsburgh School of Medicine, Pittsburgh, 15213, Pennsylvania, USA

    C C Meltzer

  3. Department of Radiology, University of Pittsburgh School of Medicine, Pittsburgh, 15213, Pennsylvania, USA

    S K Ziolko & J C Price

  4. Department of Obstetrics and Gynecology, Emory University School of Medicine, Atlanta, 30322, Georgia, USA

    S L Berga

Authors
  1. P M Fisher
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  2. C C Meltzer
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  3. S K Ziolko
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  4. J C Price
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  5. E L Moses-Kolko
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  6. S L Berga
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  7. A R Hariri
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Contributions

A.R.H. designed the study as a component of a parent study directed by C.C.M. P.M.F. and S.K.Z. performed the phenotype assessment. E.L.M.-K., C.C.M. and S.L.B. contributed to subject assessment, recruitment and data collection. A.R.H., P.M.F., J.C.P. and S.K.Z. participated in data analysis and interpretation. All authors reviewed and approved the final manuscript.

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Correspondence to A R Hariri.

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The authors declare no competing financial interests.

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Fisher, P., Meltzer, C., Ziolko, S. et al. Capacity for 5-HT1A–mediated autoregulation predicts amygdala reactivity. Nat Neurosci 9, 1362–1363 (2006). https://doi.org/10.1038/nn1780

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