Graphic health warning labels (HWLs) depicting bodily injury due to smoking are effective for producing changes in affect, cognition and smoking behavior in adult smokers. However, little is known about the effects of repeated presentation of graphic HWL’s on the aforementioned processes. The goal of this study was to examine neural and behavioral responses to graphic HWL’s and evaluate whether the repeated presentation of graphic HWL’s leads to repetition suppression (RS). Smokers (N = 16) performed an event-related HWL cue task while blood oxygen level dependent (BOLD) signal was collected during a functional magnetic resonance imaging (fMRI) experimental session. Consistent with prior literature, graphic HWL’s, as compared to scrambled images, elicited increased BOLD response in brain regions involved in self-referential and emotion processing. Importantly, BOLD response at sites in this network diminished during repeated presentation of the same HWL. These findings suggest that while novel graphic HWL’smay have a significant effect on smokers’ brain activity, repeated presentationmay lead to muted responses and thus limit their potential to induce behavioral change.
Published in Frontiers in Psychiatry, ed. Liugi Janiri, Volume 9, 2018, pages 1-11.
Copyright © 2018 Fridriksson, Rorden, Newman-Norlund, Froeliger and Thrasher. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.
Fridriksson, J., Rorden, C., Newman-Norlund, R., Froeliger, B., & Thrasher, J. (2018). Smokers' Neurological Responses to Novel and Repeated Health Warning Labels (HWLs) From Cigarette Packages. Frontiers In Psychiatry, 9. doi: 10.3389/fpsyt.2018.00319