fNIRS examination of mental workload changes during N-back tasks (Conference Presentation)

Kosar Khaksari; Emma Condy; John Millerhagen; Afrouz Anderson; Viswanath Gorti; Hadis Dashtestani; Amir Gandjbakhche

doi:10.1117/12.2543404

9 March 2020 fNIRS examination of mental workload changes during N-back tasks (Conference Presentation)

Kosar Khaksari, Emma Condy, John Millerhagen, Afrouz Anderson, Viswanath Gorti, Hadis Dashtestani, Amir Gandjbakhche

Proceedings Volume 11226, Neural Imaging and Sensing 2020; 112260D (2020) https://doi.org/10.1117/12.2543404
Event: SPIE BiOS, 2020, San Francisco, California, United States

Abstract

Working memory (WM) is part of the short-term memory storage in human brain. N-back is a WM task to assess mental workload on the prefrontal cortex (PFC). In this work, we studied how mental workload changes in an N-back task over the length of the experiment. We focused on two task levels of two- and three-back. Examining both hemodynamics and behavioral data (correct answers), we found a significant difference between 2-back and 3-back tasks and a significant difference between the beginning and end of the 3-back task.

Conference Presentation

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Kosar Khaksari, Emma Condy, John Millerhagen, Afrouz Anderson, Viswanath Gorti, Hadis Dashtestani, and Amir Gandjbakhche "fNIRS examination of mental workload changes during N-back tasks (Conference Presentation)", Proc. SPIE 11226, Neural Imaging and Sensing 2020, 112260D (9 March 2020); https://doi.org/10.1117/12.2543404

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KEYWORDS

Brain

Hemodynamics

Data acquisition

Near infrared spectroscopy

Neuroimaging

Optical imaging

Prefrontal cortex

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