The groups of Keio University and Nagoya University have so far found that stimulation and excision of the "insular cortex (insular cortex)" related to the perceptual ability (internal receptive sensation) of internal physical conditions such as heartbeat and breathing has caused anger. It has been shown to change the perception of excitatory emotions.In order to further clarify the reason for this, we conducted a task to measure emotion recognition ability and internal receptive sensation before and after tumor removal surgery for patients with tumors around the insular cortex, and compared the results. , The correspondence between the excised area and the change in behavior was investigated.

　As a result, a significant association was found between the decrease in emotional cognitive ability such as anger and joy and the decrease in internal receptive sensation by excision of the area around the insular cortex.In other words, it was shown that there is a relationship between making it difficult to feel emotions and making it difficult to feel the state of one's own body by excising the insular cortex.

　This means that the insular cortex functions as a neural basis for internal receptive sensations and supports emotional recognition such as anger and joy.It was suggested that traumatic changes and age-related changes in the area around the insular cortex may change the way emotions are perceived.In addition, since it was suggested that the body's sensations such as pounding and sowa sowa are indispensable for experiencing rich emotions, it is also important to preserve its function when removing brain tumors in the future. There are also expectations for the development of new surgical methods aimed at.

Paper information:[Cortex] Effects of insular resection on interactions between cardiac interoception and emotion recognition