Simultaneous prefrontal activation and heart rate variability can be collected in healthy adults to examine their relationship using functional near-infrared spectroscopy (fNIRS) and electrocardiogram (ECG). The present study replicates previous findings in functional magnetic resonance imaging (fMRI) using fNIRS, which creates the potential for simultaneous ambulatory measurement of neural and cardiovascular variables. Collecting such measures during physical activity will assess questions regarding a potential cardiovascular-linked mechanism for exercise-induced neural plasticity in future studies.
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.
Access to the requested content is limited to institutions that have purchased or subscribe to SPIE eBooks.
You are receiving this notice because your organization may not have SPIE eBooks access.*
*Shibboleth/Open Athens users─please
sign in
to access your institution's subscriptions.
To obtain this item, you may purchase the complete book in print or electronic format on
SPIE.org.
INSTITUTIONAL Select your institution to access the SPIE Digital Library.
PERSONAL Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.