Transcranial Static Magnetic Field Stimulation Over the Temporal Cortex Modulating the Right Ear Advantage in Dichotic Listening

2019 ◽  
Vol 23 (3) ◽  
pp. 335-340 ◽  
Author(s):  
Kai Heimrath ◽  
Alexander Spröggel ◽  
Stefan Repplinger ◽  
Hans‐Jochen Heinze ◽  
Tino Zaehle
2021 ◽  
Vol 11 (4) ◽  
pp. 483
Author(s):  
Tatsunori Watanabe ◽  
Nami Kubo ◽  
Xiaoxiao Chen ◽  
Keisuke Yunoki ◽  
Takuya Matsumoto ◽  
...  

The purpose of this pilot study was to investigate whether transcranial static magnetic field stimulation (tSMS), which can modulate cortical excitability, would influence inhibitory control function when applied over the dorsolateral prefrontal cortex (DLPFC). Young healthy adults (n = 8, mean age ± SD = 24.4 ± 4.1, six females) received the following stimulations for 30 min on different days: (1) tSMS over the left DLPFC, (2) tSMS over the right DLPFC, and (3) sham stimulation over either the left or right DLPFC. The participants performed a Go/NoGo task before, immediately after, and 10 min after the stimulation. They were instructed to extend the right wrist in response to target stimuli. We recorded the electromyogram from the right wrist extensor muscles and analyzed erroneous responses (false alarm and missed target detection) and reaction times. As a result, 50% of the participants made erroneous responses, and there were five erroneous responses in total (0.003%). A series of statistical analyses revealed that tSMS did not affect the reaction time. These preliminary findings suggest the possibility that tSMS over the DLPFC is incapable of modulating inhibitory control and/or that the cognitive load imposed in this study was insufficient to detect the effect.


2008 ◽  
Vol 431 (1) ◽  
pp. 90-94 ◽  
Author(s):  
Kenneth Hugdahl ◽  
René Westerhausen ◽  
Kimmo Alho ◽  
Svyatoslav Medvedev ◽  
Heikki Hämäläinen

1973 ◽  
Vol 53 (1) ◽  
pp. 368-369 ◽  
Author(s):  
Grace Yeni‐Komshian ◽  
Joel Gordon ◽  
Paul Sherman

1997 ◽  
Vol 4 (3) ◽  
pp. 171-175 ◽  
Author(s):  
Marien Gadea ◽  
Raul Espert ◽  
Javier Chirivella

1989 ◽  
Vol 68 (3) ◽  
pp. 1003-1010 ◽  
Author(s):  
James F. Iaccino ◽  
Stephen J. Sowa

Past studies have shown that some female as well as left-handed students do not demonstrate a right-ear advantage (REA) for verbal materials, suggesting that linguistic functions may not be handled in one hemisphere exclusively. To examine these laterality effects more closely, 96 undergraduates were equally divided by sex and hand dominance. Moreover, experimental instructions as to which ear to focus on were provided in a dichotic listening procedure, with left-ear attendance alternating with right-ear across four counterbalanced blocks of 60 trials each. Analysis indicated a major interaction of sex × ear × instructions, with men showing a right-ear advantage when attending to that respective side, highlighting the importance of experimental demands on dichotic performance. The right-ear advantage in right-handed persons was uninfluenced by these instructions, suggesting more pronounced asymmetries in this group.


1995 ◽  
Vol 80 (3_suppl) ◽  
pp. 1275-1282 ◽  
Author(s):  
G. Kaprinis ◽  
J. Nimatoudis ◽  
A. Karavatos ◽  
D. Kandylis ◽  
S. Kaprinis

To study the functional organization of the cerebral hemispheres in patients with bipolar psychosis using a verbal dichotic listening test for pairs of digits 26 patients were tested twice, during the acute expression of manic phase and after recovery. The patient group during the manic phase did not support the expected right-ear advantage of normal subjects on verbal dichotic tests but showed a statistically significant left-ear advantage, which shifted after recovery toward the typical normal asymmetry. Comparing patients during the manic phase and after recovery showed that the left-ear advantage as well as the shift in right-ear advantage after recovery was due to the reduction of left-ear performance. From the over-all neuropsychological findings for these patients mania may be hypothesized to be characterized by overactivation of the right hemisphere. This phaenomenon seems associated with acuteness of the symptoms of the psychotic disorder.


1989 ◽  
Vol 68 (3_suppl) ◽  
pp. 1291-1301 ◽  
Author(s):  
Ola Bø ◽  
Kenneth Hugdahl ◽  
Eivor Marklund

20 children with serious language problems (mainly expressive) were tested with the Dichotic Listening (DL) test for language laterality. 16 were right-handed and 4 left-handed. The dichotic test consisted of series of pairwise presentations of CVC-syllables with “target-syllables” that should be detected interspersed among “distractors.” The child pointed to a sheet of paper on which a picture representing the targets (and distractors) was printed. In addition, the children were tested on several expressive and impressive language tests and on finger-tapping. Analysis showed an increased frequency of subjects with a left-ear advantage (LEA) and a reduced amplitude of the right-ear advantage (REA) for those subjects showing a right-ear advantage. Correlations with the language variables and with finger-tapping are presented and discussed.


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