Skip to main content
Log in

Anterior insular cortex stimulation and its effects on emotion recognition

  • Original Article
  • Published:
Brain Structure and Function Aims and scope Submit manuscript

Abstract

With the objective to investigate the role of the insula in recognizing emotion, we performed direct electrical stimulation over the anterior insular cortex during awake surgery while simultaneously delivering an emotional sensitivity task. We registered 18 consecutive patients with brain tumors associated with the insular lobe, who were undergoing tumor resection. An emotional sensitivity task was employed to measure the patients’ ability to recognize emotions from facial expressions before, during, and after awake surgery. Furthermore, we performed voxel-based lesion symptom mapping (VLSM) to identify the association between relevant brain lesions and emotion recognition. When we performed direct electrical stimulation over the anterior insular cortex during awake surgery, the results showed that the ability to recognize anger was significantly enhanced with the presence of anterior insular stimulation (p < 0.05). Comparing the performance in the emotional sensitivity task before and after surgery, the performance in the anger condition became worse (p < 0.01), but became better in the sadness condition after surgery (p < 0.01). In the case of anger recognition, lower scores in the correct response index were associated with lesions involving the left insula in the VLSM study. Direct electrical stimulation over the anterior insular cortex enhanced anger recognition in patients with insular tumors. In contrast, accuracy of anger recognition was significantly reduced, and sadness was improved, when the performance of emotional sensitivity was compared pre- and post-surgery. Our findings suggest that the insular cortex is involved in changes in emotion recognition, including anger and sadness recognition by modulating arousal level that is closely connected with interoception.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Fig. 1
Fig. 2
Fig. 3
Fig. 4

Similar content being viewed by others

References

Download references

Acknowledgements

The authors would like to thank Mr. Daisuke Hara and Mr. Yasuyuki Matsui (Department of Rehabilitation, Nagoya University Hospital, Nagoya, Japan) for their wonderful technical assistance.

Author information

Authors and Affiliations

Authors

Corresponding authors

Correspondence to Kazuya Motomura or Satoshi Umeda.

Ethics declarations

Conflict of interest

This work was supported by a Grant-in-Aid for Scientific Research (B), awarded to S.U. (No. 24330210, 16H03740) and by a Grant-in-Aid for Scientific Research (C), awarded to K.M. (No. 25861268) from the Japan Society for the Promotion of Science (JSPS). We have no conflicts of interest to declare in this study.

Additional information

Publisher's Note

Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.

Rights and permissions

Reprints and permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Motomura, K., Terasawa, Y., Natsume, A. et al. Anterior insular cortex stimulation and its effects on emotion recognition. Brain Struct Funct 224, 2167–2181 (2019). https://doi.org/10.1007/s00429-019-01895-9

Download citation

  • Received:

  • Accepted:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s00429-019-01895-9

Keywords

Navigation