On short-term memory of prefrontal cortex using near-infrared spectroscopy

Chengjun Li; Zhuo Gan; Hui Gong; Qingming Luo; Shaoqun Zeng

doi:10.1117/12.546564

8 December 2003 On short-term memory of prefrontal cortex using near-infrared spectroscopy

Chengjun Li, Zhuo Gan, Hui Gong, Qingming Luo, Shaoqun Zeng

Proceedings Volume 5254, Third International Conference on Photonics and Imaging in Biology and Medicine; (2003) https://doi.org/10.1117/12.546564
Event: Third International Conference on Photonics and Imaging in Biology and Medicine, 2003, Wuhan, China

Abstract

For studying prefrontal cortical function in short-term memory two tasks were designed. In task one, a plus expression appears on screen for 300 milliseconds every other 2 seconds and the subject is required to give it’s answer but not to remember it. In task two, an Arabic numeral presents on screen as the same frequency as in task one. While a number is present, the subject need adding it to the sum he got last time. As subjects, 26 children participated in the work. Blood volume changes(BVCs) of right prefrontal cortex(PC) under two cognitive tasks were examined using functional near infrared imaging(fNIRI), a noninvasive technique for localizing regional BVCs which correlate with neural activities. The BVCs caused by short-term memory for numbers were retrieved from BVCs by task one and task two. Results revealed that short-term memory is related to PC and the near-infrared spectroscopy(NIRS) can be used to study prefrontal cortical function in short-term memory.

Citation Download Citation

Chengjun Li, Zhuo Gan, Hui Gong, Qingming Luo, and Shaoqun Zeng "On short-term memory of prefrontal cortex using near-infrared spectroscopy", Proc. SPIE 5254, Third International Conference on Photonics and Imaging in Biology and Medicine, (8 December 2003); https://doi.org/10.1117/12.546564

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