The IEEE Brain Initiative eNewsletter is a quarterly online publication launched in January 2017. It features practical and timely information and forward-looking commentary on neurotechnologies and neuroengineering. eNewsletter articles can describe recent breakthroughs in research, primers on methods of interests, or report recent events such as conferences or workshops. You can contact the eNewsletter editor with any questions concerning the topic or content of your article.
An affective computing aspect on similarities and differences in emotion recognition with EEG and eye movements among Chinese, German, and French people
Wei Liu, Bao-Liang Lu
Emotions, especially facial expressions, used to be thought of as universal all around the world: we would cry when we are sad, and we would smile when we are happy. However, you might have experienced that you do not laugh after hearing a foreign joke realizing that the joke has distinct cultural backgrounds. Emotions, therefore, seem to have both universal and culturally variable components. Understanding the relationship between cultures and emotions can help us know whether emotions affect physical health in the same way across various cultures and inform us about the effectiveness of mental health interventions for patients with different cultural backgrounds. In addition, from the aspect of affective computing, a deep comprehension of cultural influences on emotions can help us build emotion recognition models for generalizing to people around the world.
Ye Tian, Cunkai Zhou, Kuikui Zhang, Huiran Yang, Zhaohan Chen, Zhitao Zhou, Xiaoling Wei, Tiger H. Tao, Liuyang Sun
Implantable flexible neural probes have been demonstrated bridging the mechanical mismatch between invasive probes and brain tissues, minimizing footprint in brain, and chronic biocompatibility . However, conventional needle-shaped flexible neural probes reported before have recording sites distributed vertically along a relatively narrow shank , which limits the lateral range in which the probes may record neural signals. Although designs with more probe shanks expand the lateral detectable range, the high implantation density reflects in increased tissue damage and surgery complexity. In this work, we developed a flexible neural probe by novel Christmas-tree structure, which has branches that are foldable along the shank by temporary encapsulation before implantation and self-stretchable after the encapsulation dissolves after implantation. The probe we developed affords increased lateral sensing range without causing extra brain tissue damage.
As we enter a new year, it is a good time to look back at the activities of the IEEE Brain Initiative during the past 12 months. Our community has been extremely engaged on the advancement of neurotechnologies.
Progress in neurotechnology is critical to improve our understanding of the human brain and improve the delivery of neurorehabilitation and mental health services at the global level. We are now entering a new phase of neurotechnology development characterized by higher and more systematic public funding, diversified private sector investment, and increased availability of non-clinical neurodevices.
C. Guger, G. Schalk, C. Kapeller
In 1985, Dr. Oliver Sacks published “The Man Who Mistook His Wife for a Hat,” which included the case of a man with visual agnosia who had trouble identifying faces. This case made many people think about what a remarkable challenge our brain routinely solves every day.
J.L. Contreras-Vidal, Y. He, A. Kilicarslan, J.M. Azorín
Trauma to neural systems such as stroke and spinal cord injury (SCI) could irreversibly affect one’s ability to walk. Ambulation and rehabilitation after injuries has long been a research focus with great significance for patients to improve their quality of life. With recent advances in robotic technologies, lower-limb powered exoskeletons have emerged as an assistive and rehabilitative tool for disabled individuals to walk again.
Tech billionaires are investing in neurotechnology with optimism. Elon Musk, Brian Johnson and Marc Zuckerberg, to name a few, cite enhancing human intelligence, boosting memory, and electronically sharing full sensory and emotional experiences as their goals. But is money enough to drive a revolution in neurotech or could the readiness level of the technology curtail their ambitions?