Dissociation of numerosity and duration processing in the left intraparietal sulcus: A transcranial magnetic stimulation study

It has often been proposed that there is a close link between representation of number and space. In the present work, single-pulse transcranial magnetic stimulation (TMS) was applied to the ventral intraparietal sulcus (VIPS) to determine effects on performance in motion detection and number comparison tasks. Participants' reaction times and thresholds for perception of laterally presented coherent motion in random dot kinematograms increased significantly when the contralateral VIPS was stimulated in contrast to the interhemispheric sulcus (Experiment 1) and to the ipsilateral VIPS (Experiment 2). In number comparison tasks, participants compared the magnitude of the laterally presented numbers 1–9 with the number 5. Again, reaction times significantly increased when TMS was applied to the contralateral VIPS in contrast to control sites. The finding that VIPS-directed TMS results in impaired efficiency in both motion perception and number comparison suggests that these processes share a common neural substrate.

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Repetitive transcranial magnetic stimulation over right intraparietal sulcus enhances emotional face processing in the left visual field

Neuroreport ◽

10.1097/wnr.0000000000001034 ◽

2018 ◽

Vol 29 (10) ◽

pp. 804-807 ◽

Cited By ~ 1

Author(s):

Chenggui Fan ◽

Chaoyang Wan ◽

Junjun Zhang ◽

Zhenlan Jin ◽

Ling Li

Keyword(s):

Transcranial Magnetic Stimulation ◽

Visual Field ◽

Face Processing ◽

Left Visual Field ◽

Magnetic Stimulation ◽

Repetitive Transcranial Magnetic Stimulation ◽

Intraparietal Sulcus ◽

Emotional Face Processing ◽

Emotional Face

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The Anterior Intraparietal Sulcus Mediates Grasp Execution, Independent of Requirement to Update: New Insights from Transcranial Magnetic Stimulation

Journal of Neuroscience ◽

10.1523/jneurosci.1641-06.2006 ◽

2006 ◽

Vol 26 (31) ◽

pp. 8176-8182 ◽

Cited By ~ 111

Author(s):

N. J. Rice ◽

E. Tunik ◽

S. T. Grafton

Keyword(s):

Transcranial Magnetic Stimulation ◽

Magnetic Stimulation ◽

Intraparietal Sulcus ◽

Anterior Intraparietal Sulcus

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Differential Contributions of the Intraparietal Sulcus and the Inferior Parietal Lobe to Attentional Blink: Evidence from Transcranial Magnetic Stimulation

Journal of Cognitive Neuroscience ◽

10.1162/jocn.2010.21426 ◽

2011 ◽

Vol 23 (1) ◽

pp. 247-256 ◽

Cited By ~ 10

Author(s):

Ken Kihara ◽

Takashi Ikeda ◽

Daisuke Matsuyoshi ◽

Nobuyuki Hirose ◽

Tatsuya Mima ◽

...

Keyword(s):

Transcranial Magnetic Stimulation ◽

Attentional Blink ◽

Magnetic Stimulation ◽

Parietal Lobe ◽

Visual Presentation ◽

Intraparietal Sulcus ◽

Attentional Set ◽

Inferior Parietal Lobe ◽

Task Goals ◽

Disengagement Of Attention

When two targets (T1 and T2) are to be identified in rapid serial visual presentation, the response to T1 induces impairment of T2 report if T2 appears within 500 msec after T1 (attentional blink: AB). AB is thought to reflect temporal limitations of attention which affect target perception. Recent research suggests that the intraparietal sulcus (IPS) contributes to an attentional set associated with task goals, whereas the inferior parietal lobe (IPL) is associated with the disengagement and reorienting of attention to a relevant stimulus presented outside the current focus of attention. We investigated respective involvement of the IPS and the IPL in AB using transcranial magnetic stimulation (TMS). The results of Experiment 1 showed that the magnitude of AB deficit decreased TMS disrupted activity of the IPS after T1 onset. In addition, an increased AB deficit occurred when TMS was delivered over the IPS or IPL after T2 onset. In Experiment 2, where participants were instructed to ignore T1, they showed an AB-like T2 deficit only when TMS was delivered to the IPS after a T2 onset. Findings are discussed in terms of hypotheses about the respective roles of the IPS, in realizing an attentional set, and the IPL, in contributing to a disengagement of attention (from T1 to T2) during an AB period.

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