Acute Effects of Physical Exercise on Prefrontal Cortex Activity in Older Adults: A Functional Near-Infrared Spectroscopy Study

2012 ◽  
pp. 293-298 ◽  
Author(s):  
Takeo Tsujii ◽  
Kazutoshi Komatsu ◽  
Kaoru Sakatani
Keyword(s):  
Older Adults ◽  
Prefrontal Cortex ◽  
Infrared Spectroscopy ◽  
Physical Exercise ◽  
Near Infrared Spectroscopy ◽  
Near Infrared ◽  
Spectroscopy Study ◽  
Acute Effects ◽  
Functional Near Infrared Spectroscopy

scholarly journals Activation of the Prefrontal Cortex While Performing a Task at Preferred Slow Pace and Metronome Slow Pace: A Functional Near-Infrared Spectroscopy Study

2014 ◽  
Vol 2014 ◽  
pp. 1-7 ◽  
Author(s):  
Kaori Shimoda ◽  
Yoshiya Moriguchi ◽  
Kenji Tsuchiya ◽  
Shiori Katsuyama ◽  
Fusae Tozato
Keyword(s):  
Prefrontal Cortex ◽  
Infrared Spectroscopy ◽  
Near Infrared Spectroscopy ◽  
Near Infrared ◽  
Spectroscopy Study ◽  
Functional Near Infrared Spectroscopy ◽  
Slow Pace ◽  
Frontopolar Cortex ◽  
Repetitive Movements ◽  
Externally Triggered Movements

Individuals have a preferred pace at which they perform voluntary repetitive movements. Previous studies have reported that greater activation of the prefrontal cortex was observed during self-initiated movements than during externally triggered movements. The purpose of the present study is to compare the activation of the prefrontal cortex induced when the subjects performed a peg-board task at their preferred slow pace (PSP, the self-initiated condition) with that induced when they performed the same task at metronome slow pace (MSP, the externally triggered condition) using functional near-infrared spectroscopy. Healthy subjects performed the task while sitting in a chair. By assessing the activated channels individually, we confirmed that all of the prefrontal regions of interest were activated by both tasks. In the second-level analyses, we found that the activation detected in the frontopolar cortex (FPPFC; Brodmann area 10) was higher during the PSP task than during the MSP task. The FPPFC is known to be at the top of prefrontal hierarchy, and specifically involved in evaluating self-generated information. In addition, the FPPFC plays a role in coordinating lateral prefrontal cortex. In the present study, the subjects evaluated and managed the internally generated PSP by coordinating the activity of other lower level prefrontal regions.

scholarly journals The role of prefrontal cortex during postural control in Parkinsonian syndromes a functional near-infrared spectroscopy study

2016 ◽  
Vol 1633 ◽  
pp. 126-138 ◽  
Author(s):  
Jeannette R. Mahoney ◽  
Roee Holtzer ◽  
Meltem Izzetoglu ◽  
Vance Zemon ◽  
Joe Verghese ◽  
...  
Keyword(s):  
Prefrontal Cortex ◽  
Infrared Spectroscopy ◽  
Postural Control ◽  
Near Infrared Spectroscopy ◽  
Near Infrared ◽  
Spectroscopy Study ◽  
Functional Near Infrared Spectroscopy ◽  
Parkinsonian Syndromes

Brain Activation Changes During Balance- and Attention-Demanding Tasks in Middle- and Older-Aged Adults With Multiple Sclerosis

Motor Control ◽  
2019 ◽  
Vol 23 (4) ◽  
pp. 498-517 ◽  
Author(s):  
Manuel E. Hernandez ◽  
Erin O’Donnell ◽  
Gioella Chaparro ◽  
Roee Holtzer ◽  
Meltem Izzetoglu ◽  
...  
Keyword(s):  
Multiple Sclerosis ◽  
Older Adults ◽  
Prefrontal Cortex ◽  
Infrared Spectroscopy ◽  
Near Infrared Spectroscopy ◽  
Near Infrared ◽  
Motor Task ◽  
Brain Activation ◽  
Functional Near Infrared Spectroscopy ◽  
Healthy Older Adults

Functional near-infrared spectroscopy was used to evaluate prefrontal cortex activation differences between older adults with multiple sclerosis (MS) and healthy older adults (HOA) during the performance of a balance- and attention-demanding motor task. Ten older adults with MS and 12 HOA underwent functional near-infrared spectroscopy recording while talking, virtual beam walking, or virtual beam walking while talking on a self-paced treadmill. The MS group demonstrated smaller increases in prefrontal cortex oxygenation levels than HOA during virtual beam walking while talking than talking tasks. These findings indicate a decreased ability to allocate additional attentional resources in challenging walking conditions among MS compared with HOA. This study is the first to investigate brain activation dynamics during the performance of balance- and attention-demanding motor tasks in persons with MS.

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