Repetitive Paired-Pulse Transcranial Magnetic Stimulation Over the Visual Cortex Alters Visual Recovery Function

2013 ◽  
Vol 6 (3) ◽  
pp. 298-305 ◽  
Author(s):  
Takahiro Kimura ◽  
Katsuya Ogata ◽  
Shozo Tobimatsu
Keyword(s):  
Visual Cortex ◽  
Transcranial Magnetic Stimulation ◽  
Magnetic Stimulation ◽  
Visual Recovery ◽  
Paired Pulse ◽  
Recovery Function

P114 Probing cortical inhibition in visual cortex with paired-pulse transcranial magnetic stimulation

2020 ◽  
Vol 131 (4) ◽  
pp. e76
Author(s):  
D. Khammash ◽  
M. Simmonite ◽  
T.A. Polk ◽  
S.F. Taylor ◽  
S.K. Meehan
Keyword(s):  
Visual Cortex ◽  
Transcranial Magnetic Stimulation ◽  
Magnetic Stimulation ◽  
Cortical Inhibition ◽  
Paired Pulse

Investigation of the primary visual cortex using short-interval paired-pulse transcranial magnetic stimulation (TMS)

2005 ◽  
Vol 382 (3) ◽  
pp. 312-316 ◽  
Author(s):  
Roland Sparing ◽  
Nina Dambeck ◽  
Kathrin Stock ◽  
Ingo G. Meister ◽  
Dorothee Huetter ◽  
...  
Keyword(s):  
Visual Cortex ◽  
Transcranial Magnetic Stimulation ◽  
Primary Visual Cortex ◽  
Magnetic Stimulation ◽  
Short Interval ◽  
Paired Pulse

scholarly journals Application of long-interval paired-pulse transcranial magnetic stimulation to motion-sensitive visual cortex does not lead to changes in motion discrimination

2020 ◽  
Vol 730 ◽  
pp. 135022 ◽  
Author(s):  
Olga Lucia Gamboa ◽  
Alexandra Brito ◽  
Zachary Abzug ◽  
Tracy D’Arbeloff ◽  
Lysianne Beynel ◽  
...  
Keyword(s):  
Visual Cortex ◽  
Transcranial Magnetic Stimulation ◽  
Magnetic Stimulation ◽  
Paired Pulse ◽  
Motion Discrimination

scholarly journals Application of long-interval paired-pulse transcranial magnetic stimulation to motion-sensitive visual cortex does not lead to changes in motion perception

2019 ◽  
Author(s):  
Olga Lucia Gamboa Arana ◽  
Alexandra Brito ◽  
Zachary Abzug ◽  
Tracy D’Arbeloff ◽  
Lysianne Beynel ◽  
...  
Keyword(s):  
Visual Cortex ◽  
Transcranial Magnetic Stimulation ◽  
Motion Perception ◽  
Magnetic Stimulation ◽  
Controlled Study ◽  
List Type ◽  
Motion Sensitivity ◽  
Paired Pulse ◽  
Sham Stimulation ◽  
Resting Motor Threshold

ABSTRACTThe perception of visual motion is dependent on a set of occipitotemporal regions which are readily accessible to neuromodulation. Previous studies using paired-pulse Transcranial Magnetic Stimulation (ppTMS) have provided evidence of the capacity of this type of protocols to modulate cognitive processes. To test whether such cortical modulation can be observed in the visual system, particularly during motion perception, ppTMS was applied to the occipital cortex using both scalp-based and meta-analytic targeting coordinates. In this within-subject, sham-controlled study, fifteen subjects completed two sessions in two consecutive weeks. On the first visit, subject-specific resting motor threshold (RMT) was determined and participants performed an adaptive motion discrimination task to determine individual motion sensitivity. During the second visit, subjects performed the same task with three individualized difficulty levels as two TMS pulses were delivered respectively −150 and −50 ms prior to motion stimulus onset at 120% RMT, under the logic that the cumulative inhibitory effect of these two pulses would alter motion sensitivity as measured by the individually calibrated task. The ppTMS was delivered at one of two locations: 3 cm dorsal and 5 cm lateral to inion (scalp-based coordinate), or at the site of peak activation for “motion” according to the NeuroSynth fMRI database (meta-analytic coordinate). Sham stimulation was delivered on one-third of trials and evenly between the two targets. Analyses showed no significant active-versus-sham effects of ppTMS when stimulation was delivered to the meta-analytic (p = 0.15) or scalp-based coordinates (p = 0.17), which were separated by 29 mm on average. Additionally, there was no was significant interaction between ppTMS at either location and task difficulty level (p = 0.12 and p = 0.33, respectively). These findings fail to support the hypothesis that long-interval ppTMS recruits inhibitory processes in motion-sensitive cortex, but must be considered within the limits of the current design choices.HIGHLIGHTSLong-interval paired-pulse TMS was applied to visual cortex during a motion taskThe ppTMS was delivered according to scalp and meta-analytic coordinates, as well as shamNo effects of active-versus-sham stimulation were observed on motion task performance

Repetitive Paired-pulse Transcranial Magnetic Stimulation Over the Visual Cortex Selectively Inhibits Focal Flash VEPs

2014 ◽  
Vol 7 (2) ◽  
pp. 275-280 ◽  
Author(s):  
Takahiro Kimura ◽  
Katsuya Ogata ◽  
Hisato Nakazono ◽  
Shozo Tobimatsu
Keyword(s):  
Visual Cortex ◽  
Transcranial Magnetic Stimulation ◽  
Magnetic Stimulation ◽  
Paired Pulse

scholarly journals Top-down control of visual cortex by the frontal eye fields through oscillatory realignment

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Domenica Veniero ◽  
Joachim Gross ◽  
Stephanie Morand ◽  
Felix Duecker ◽  
Alexander T. Sack ◽  
...  
Keyword(s):  
Visual Cortex ◽  
Transcranial Magnetic Stimulation ◽  
Visual Perception ◽  
Magnetic Stimulation ◽  
Single Pulse ◽  
Frontal Eye Fields ◽  
Phase Reset ◽  
Top Down ◽  
Visual Areas ◽  
Beta Frequency

AbstractVoluntary allocation of visual attention is controlled by top-down signals generated within the Frontal Eye Fields (FEFs) that can change the excitability of lower-level visual areas. However, the mechanism through which this control is achieved remains elusive. Here, we emulated the generation of an attentional signal using single-pulse transcranial magnetic stimulation to activate the FEFs and tracked its consequences over the visual cortex. First, we documented changes to brain oscillations using electroencephalography and found evidence for a phase reset over occipital sites at beta frequency. We then probed for perceptual consequences of this top-down triggered phase reset and assessed its anatomical specificity. We show that FEF activation leads to cyclic modulation of visual perception and extrastriate but not primary visual cortex excitability, again at beta frequency. We conclude that top-down signals originating in FEF causally shape visual cortex activity and perception through mechanisms of oscillatory realignment.

Increased intracortical inhibition in middle-aged humans; a study using paired-pulse transcranial magnetic stimulation

2002 ◽  
Vol 333 (2) ◽  
pp. 83-86 ◽  
Author(s):  
Andon R Kossev ◽  
Christoph Schrader ◽  
Jan Däuper ◽  
Reinhard Dengler ◽  
Jens D Rollnik
Keyword(s):  
Transcranial Magnetic Stimulation ◽  
Magnetic Stimulation ◽  
Intracortical Inhibition ◽  
Middle Aged ◽  
Paired Pulse
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