Atomic Magnetometer Achieves Visual Salience Analysis in Drosophila

Fan Liu; Dongmei Li; Yixiao Li; Zhao Xiang; Yuhai Chen; Zhenyuan Xu; Qiang Lin; Yi Ruan

doi:10.3390/s23031092

Sensors (Jan 2023)

Atomic Magnetometer Achieves Visual Salience Analysis in Drosophila

Fan Liu,
Dongmei Li,
Yixiao Li,
Zhao Xiang,
Yuhai Chen,
Zhenyuan Xu,
Qiang Lin,
Yi Ruan

Affiliations

Fan Liu: Zhejiang Provincial Key Laboratory, and Collaborative Innovation Center for Quantum Precision Measurement, College of Science, Zhejiang University of Technology, Hangzhou 310023, China
Dongmei Li: Zhejiang Provincial Key Laboratory, and Collaborative Innovation Center for Quantum Precision Measurement, College of Science, Zhejiang University of Technology, Hangzhou 310023, China
Yixiao Li: Zhejiang Provincial Key Laboratory, and Collaborative Innovation Center for Quantum Precision Measurement, College of Science, Zhejiang University of Technology, Hangzhou 310023, China
Zhao Xiang: Zhejiang Provincial Key Laboratory, and Collaborative Innovation Center for Quantum Precision Measurement, College of Science, Zhejiang University of Technology, Hangzhou 310023, China
Yuhai Chen: Zhejiang Provincial Key Laboratory, and Collaborative Innovation Center for Quantum Precision Measurement, College of Science, Zhejiang University of Technology, Hangzhou 310023, China
Zhenyuan Xu: Zhejiang Provincial Key Laboratory, and Collaborative Innovation Center for Quantum Precision Measurement, College of Science, Zhejiang University of Technology, Hangzhou 310023, China
Qiang Lin: Zhejiang Provincial Key Laboratory, and Collaborative Innovation Center for Quantum Precision Measurement, College of Science, Zhejiang University of Technology, Hangzhou 310023, China
Yi Ruan: Zhejiang Provincial Key Laboratory, and Collaborative Innovation Center for Quantum Precision Measurement, College of Science, Zhejiang University of Technology, Hangzhou 310023, China

DOI: https://doi.org/10.3390/s23031092
Journal volume & issue: Vol. 23, no. 3
p. 1092

Abstract

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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.

Published in Sensors

ISSN: 1424-8220 (Online)
Publisher: MDPI AG
Country of publisher: Switzerland
LCC subjects: Technology: Chemical technology
Website: http://www.mdpi.com/journal/sensors

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