Distinguishing multiple coding levels in theta band activity during working memory gating processes

Author(s):  
Sarah Rempel ◽  
Lorenza Colzato ◽  
Wenxin Zhang ◽  
Nicole Wolff ◽  
Moritz Mückschel ◽  
...  
2019 ◽  
Vol 9 (9) ◽  
pp. 222 ◽  
Author(s):  
Kazutaka Ueda ◽  
Masayuki Nakao

The present study aimed to examine the effect of transpulmonary administration of caffeine on working memory and related brain functions by electroencephalography measurement. The participants performed working memory tasks before and after vaporizer-assisted aspiration with inhalation of caffeinated- and non-caffeinated liquids in the caffeine and sham conditions, respectively. Transpulmonary administration of caffeine tended to increase the rate of correct answers. Moreover, our findings suggest that transpulmonary administration of caffeine increases the theta-band activity in the right prefrontal, central, and temporal areas during the task assigned post-aspiration. Our results may indicate an efficient and fast means of eliciting the stimulatory effects of transpulmonary administration of caffeine.


2016 ◽  
Vol 1637 ◽  
pp. 22-33 ◽  
Author(s):  
Matthew J. Euler ◽  
Travis J. Wiltshire ◽  
Madison A. Niermeyer ◽  
Jonathan E. Butner

2002 ◽  
Vol 22 (13) ◽  
pp. 5630-5638 ◽  
Author(s):  
Werner Lutzenberger ◽  
Barbara Ripper ◽  
Laura Busse ◽  
Niels Birbaumer ◽  
Jochen Kaiser

2012 ◽  
Vol 107 (12) ◽  
pp. 3458-3467 ◽  
Author(s):  
Iris Steinmann ◽  
Alexander Gutschalk

Human functional MRI (fMRI) and magnetoencephalography (MEG) studies indicate a pitch-specific area in lateral Heschl's gyrus. Single-cell recordings in monkey suggest that sustained-firing, pitch-specific neurons are located lateral to primary auditory cortex. We reevaluated whether pitch strength contrasts reveal sustained pitch-specific responses in human auditory cortex. Sustained BOLD activity in auditory cortex was found for iterated rippled noise (vs. noise or silence) but not for regular click trains (vs. jittered click trains or silence). In contrast, iterated rippled noise and click trains produced similar pitch responses in MEG. Subsequently performed time-frequency analysis of the MEG data suggested that the dissociation of cortical BOLD activity between iterated rippled noise and click trains is related to theta band activity. It appears that both sustained BOLD and theta activity are associated with slow non-pitch-specific stimulus fluctuations. BOLD activity in the inferior colliculus was sustained for both stimulus types and varied neither with pitch strength nor with the presence of slow stimulus fluctuations. These results suggest that BOLD activity in auditory cortex is much more sensitive to slow stimulus fluctuations than to constant pitch, compromising the accessibility of the latter. In contrast, pitch-related activity in MEG can easily be separated from theta band activity related to slow stimulus fluctuations.


2017 ◽  
Vol 7 (1) ◽  
Author(s):  
Jonathan Daume ◽  
Sebastian Graetz ◽  
Thomas Gruber ◽  
Andreas K. Engel ◽  
Uwe Friese

2017 ◽  
Vol 7 (1) ◽  
Author(s):  
Jochen Kaiser ◽  
Maria Rieder ◽  
Cornelius Abel ◽  
Benjamin Peters ◽  
Christoph Bledowski

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