Zhejiang Provincial Key Laboratory, and Collaborative Innovation Center for Quantum Precision Measurement, College of Science, Zhejiang University of Technology, Hangzhou 310023, China.
Sensors (Basel). 2023 Jan 17;23(3):1092. doi: 10.3390/s23031092.
An atomic magnetometer (AM) was used to non-invasively detect the tiny magnetic field generated by the brain of a single Drosophila. Combined with a visual stimulus system, the AM was used to study the relationship between visual salience and oscillatory activity of the Drosophila brain by analyzing changes in the magnetic field. Oscillatory activity of Drosophila in the 1-20 Hz frequency band was measured with a sensitivity of 20 fT/Hz. The field in the 20-30 Hz band under periodic light stimulation was used to explore the correlation between short-term memory and visual salience. Our method opens a new path to a more flexible method for the investigation of brain activity in Drosophila and other small insects.
采用原子磁力计（AM）非侵入式地检测果蝇单个大脑产生的微小磁场。结合视觉刺激系统，通过分析磁场变化，使用 AM 研究果蝇大脑视觉显著性与振荡活动之间的关系。果蝇在 1-20 Hz 频段的振荡活动的测量灵敏度为 20 fT/Hz。周期性光刺激下 20-30 Hz 频段的磁场用于探索短期记忆与视觉显著性之间的相关性。我们的方法为研究果蝇和其他小型昆虫的大脑活动开辟了一条更灵活的新途径。
