Note to users. If you're seeing this message, it means that your browser cannot find this page's style/presentation instructions -- or possibly that you are using a browser that does not support current Web standards. Find out more about why this message is appearing, and what you can do to make your experience of our site the best it can be.


Sci. STKE, 23 July 2002
Vol. 2002, Issue 142, p. tw266
[DOI: 10.1126/stke.2002.142.tw266]

EDITORS' CHOICE

Neurobiology Profiles in Fear

Linking genotype to phenotype has been particularly challenging in the realm of neurotransmitter metabolism and subjective assessments of human behavior and personality. Anxiety-related traits have been associated with the biogenic amine serotonin, an important mediator and modulator of emotion and mood, and a polymorphism in the serotonin transporter, which sequesters synaptic serotonin. Hariri et al. present the results of a functional brain imaging of normal individuals. An increased responsiveness of the amygdala (a brain structure intimately involved in emotional processing) to fearful stimuli was seen in subjects carrying one or two copies of the "s" allele of the transporter, in contrast to those with two copies of the "l" allele.

A. R. Hariri, V. S. Mattay, A. Tessitore, B. Kolachana, F. Fera, D. Goldman, M. F. Egan, D. R. Weinberger, Serotonin transporter genetic variation and the response of the human amygdala, Science 297, 400-403 (2002). [Abstract] [Full Text]

Citation: Profiles in Fear. Sci. STKE 2002, tw266 (2002).



To Advertise     Find Products


Science Signaling. ISSN 1937-9145 (online), 1945-0877 (print). Pre-2008: Science's STKE. ISSN 1525-8882