Yoan Mihov and Alexandra Patin contributed equally to this work.
Overnight deprivation from smoking disrupts amygdala responses to fear
Article first published online: 26 MAY 2011
Copyright © 2011 Wiley-Liss, Inc.
Human Brain Mapping
Volume 33, Issue 6, pages 1407–1416, June 2012
How to Cite
Onur, O. A., Patin, A., Mihov, Y., Buecher, B., Stoffel-Wagner, B., Schlaepfer, T. E., Walter, H., Maier, W. and Hurlemann, R. (2012), Overnight deprivation from smoking disrupts amygdala responses to fear. Hum. Brain Mapp., 33: 1407–1416. doi: 10.1002/hbm.21293
- Issue published online: 10 MAY 2012
- Article first published online: 26 MAY 2011
- Manuscript Accepted: 2 FEB 2011
- Manuscript Revised: 25 JAN 2011
- Manuscript Received: 12 DEC 2010
- German Research Foundation (DFG). Grant Numbers: HU1302/2-1, HU1302/2-2
- Ministry of Innovation, Science, Research and Technology (MIWFT) of the German State of North Rhine-Westphalia
- the University of Bonn (Starting Independent Researcher Grant).
Cigarette smoking, a major, yet avoidable, cause of disability and premature death, is the most prevalent form of nicotine addiction. An emerging theme in the neurobiology of nicotine addiction is the integrity of the amygdala. Using functional MRI, amygdala responses during a face perception task were compared between 28 chronic smokers [14 females, 14 males; age, 26.3 (2.8) years; age at onset of smoking, 15.8 (2.6) years; years smoked, 9.1 (2.1); cigarettes per day, 17.1 (3.7); Fagerström test for nicotine dependence score, 4.1 (1.9); exhaled carbon-monoxide level, 17.8 (9.5) ppm] and 28 age- and education-matched nonsmokers [14 females, 14 males; age, 26.9 (2.4) years]. Subjects underwent imaging on two separate occasions 1 week apart: smoking satiety versus overnight smoking deprivation, in a randomized counterbalanced order. Our results show no difference in amygdala responses to faces between nonsmokers and satiated smokers. However, overnight deprivation from smoking was associated with a significantly lowered amygdala response to fear, an effect that was probabilistically mapped to the basolateral amygdala. We suggest that aberrant amygdala reactivity in overnight-deprived smokers may reflect a pre-existing vulnerability to smoking and/or increase the risk of smoking relapse after a cessation attempt. Hum Brain Mapp, 2011. © 2011 Wiley-Liss, Inc.