Ke

Abstract:

Optical brain imaging methods, particularly functional near-infrared spectroscopy (fNIRS), have emerged as a versatile and non-invasive neuroimaging modality for assessing human brain function in both laboratory and real-world settings. By measuring task- and state-related changes in cerebral hemodynamics, fNIRS enables flexible evaluation of brain hemodynamics and oxygenation profiles with advantages in portability, better tolerance to motion, cost, and ecological validity compared to conventional imaging techniques. Ongoing methodological advances in instrumentation, signal processing, and experimental design have substantially improved the sensitivity, spatial specificity, and interpretability of fNIRS measurements, while multimodal integration further enhances its ability to capture complex brain dynamics. This seminar talk provides an integrated overview of the fundamentals, methodological advances, and representative applications of fNIRS in neuroscience and clinical research 

Biography:

Dr. Ke Peng is an Assistant Professor in the Department of Electrical and Computer Engineering and a member of the Biomedical Engineering Graduate Program. He received his PhD in Biomedical Engineering from École Polytechnique de Montréal, followed by postdoctoral training and an appointment as an instructor at Harvard Medical School. Dr. Peng’s research focuses on the development and application of multimodal brain imaging techniques, including electroencephalography (EEG), functional magnetic resonance imaging (fMRI), and functional near-infrared spectroscopy (fNIRS). His work applies these methods to the study of various neurological conditions, such as epilepsy, stroke, chronic pain, and dementia, with the goal of characterizing alterations in brain function and informing the development of objective biomarkers and therapeutic strategies. 

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