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The strategy and motivational influe...

Jones, Kevin T.

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The strategy and motivational influences on the beneficial effect of neurostimulation: a tDCS and fNIRS study.

Record Type:	Language materials, printed : Monograph/item
Title/Author:	The strategy and motivational influences on the beneficial effect of neurostimulation: a tDCS and fNIRS study./
Author:	Jones, Kevin T.
Description:	90 p.
Notes:	Source: Dissertation Abstracts International, Volume: 75-10(E), Section: B.
Contained By:	Dissertation Abstracts International75-10B(E).
Subject:	Psychology, Physiological. -
Online resource:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3626078
ISBN:	9781321006216

The strategy and motivational influences on the beneficial effect of neurostimulation: a tDCS and fNIRS study.
Jones, Kevin T.

The strategy and motivational influences on the beneficial effect of neurostimulation: a tDCS and fNIRS study. - 90 p.

Source: Dissertation Abstracts International, Volume: 75-10(E), Section: B.

Thesis (Ph.D.)--University of Nevada, Reno, 2014.

The use and public knowledge of noninvasive neurostimulation is rapidly increasing. Transcranial direct current stimulation (tDCS) is a noninvasive technique in which small amounts of current are passed through the cortex in order to change the resting state of underlying neurons. This technique has wide use in rehabilitation and research settings. Here we studied the use of tDCS in healthy younger adults. Our previous findings demonstrated that tDCS can improve working memory (WM) performance in some individuals. We learned that individual differences in education level and WM capacity modulate tDCS effects. In Experiment 1 and 2 we investigated why low WM capacity participants do not benefit or have reduced performance after tDCS. We also explored how tDCS affects cortical blood flow using functional near infrared spectroscopy (fNIRS). In Experiment 1 we examined how strategy use influences tDCS effects. The results demonstrated that active strategy use does not facilitate tDCS effects in low WM capacity participants. Conversely, the high WM capacity participants continued to improve. Furthermore, we found that only the high WM capacity participants had an increase in oxygenated blood flow following anodal tDCS regardless of strategy use. In Experiment 2 we investigated how motivation level modified tDCS effects. We found that motivation level promoted enhanced performance across tDCS conditions for both WM capacity groups. Interestingly, only the low WM capacity participants had an increase in oxygenated blood flow across all motivation and tDCS conditions. The results from all four experiences have important implications for future successful use of neurostimulation in both clinical and healthy populations.

ISBN: 9781321006216Subjects--Topical Terms:

1017869
Psychology, Physiological.

The strategy and motivational influences on the beneficial effect of neurostimulation: a tDCS and fNIRS study.
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020 $a 9781321006216
035 $a (MiAaPQ)AAI3626078
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100 1 $a Jones, Kevin T. $3 2105169
245 1 4 $a The strategy and motivational influences on the beneficial effect of neurostimulation: a tDCS and fNIRS study.
300 $a 90 p.
500 $a Source: Dissertation Abstracts International, Volume: 75-10(E), Section: B.
500 $a Adviser: Marian E. Berryhill.
502 $a Thesis (Ph.D.)--University of Nevada, Reno, 2014.
520 $a The use and public knowledge of noninvasive neurostimulation is rapidly increasing. Transcranial direct current stimulation (tDCS) is a noninvasive technique in which small amounts of current are passed through the cortex in order to change the resting state of underlying neurons. This technique has wide use in rehabilitation and research settings. Here we studied the use of tDCS in healthy younger adults. Our previous findings demonstrated that tDCS can improve working memory (WM) performance in some individuals. We learned that individual differences in education level and WM capacity modulate tDCS effects. In Experiment 1 and 2 we investigated why low WM capacity participants do not benefit or have reduced performance after tDCS. We also explored how tDCS affects cortical blood flow using functional near infrared spectroscopy (fNIRS). In Experiment 1 we examined how strategy use influences tDCS effects. The results demonstrated that active strategy use does not facilitate tDCS effects in low WM capacity participants. Conversely, the high WM capacity participants continued to improve. Furthermore, we found that only the high WM capacity participants had an increase in oxygenated blood flow following anodal tDCS regardless of strategy use. In Experiment 2 we investigated how motivation level modified tDCS effects. We found that motivation level promoted enhanced performance across tDCS conditions for both WM capacity groups. Interestingly, only the low WM capacity participants had an increase in oxygenated blood flow across all motivation and tDCS conditions. The results from all four experiences have important implications for future successful use of neurostimulation in both clinical and healthy populations.
590 $a School code: 0139.
650 4 $a Psychology, Physiological. $3 1017869
650 4 $a Biology, Neuroscience. $3 1017680
690 $a 0989
690 $a 0317
710 2 $a University of Nevada, Reno. $b Psychology. $3 1022560
773 0 $t Dissertation Abstracts International $g 75-10B(E).
790 $a 0139
791 $a Ph.D.
792 $a 2014
793 $a English
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3626078