Frequency-dependent patterns of somatosensory cortical responses to vibrotactile stimulation in humans: A fMRI study

Chung, Yoon Young; Kim, Junsuk; Han, Sang Woo; Kim, Hyung–Sik; Choi, Mi Hyun; Chung, Soon−Cheol; Park, Jang‐Yeon; Kim, Sung-Phil

doi:10.1016/j.brainres.2013.02.003

Cited by 43 publications

(32 citation statements)

References 56 publications

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“…Given the converging input of joints and of pressure to BA 2, it is not surprising that fewer subjects responded to the stimulation. Other stimulus categories that represent the submodalities joints and pressure or, alternatively, an MRI-Scanner with a higher field strength than 3 T may be better suited to show a somatotopic organization in BA 2 (Chung et al, 2013). This is especially supported by lower cluster volumes of BA 2 and undulant plotted shapes for the changes in the BOLD signal in NIL and NOR (Fig.…”

Section: Anatomical Localization Of the Different Conditions On Simentioning

confidence: 94%

“…Moreover, since fewer subjects responded to the stimulation in BA 2 (Table IV) Average BOLD signal change for all subjects in all conditions and repetitions. Other stimulus categories that represent the submodalities joints and pressure or, alternatively, an MRI-Scanner with a higher field strength than 3 T may be better suited to show a somatotopic organization in BA 2 (Chung et al, 2013). The x-axes display 11 time points with regard to the TR of 2.5 s, and y-axes represent signal intensity change (in AU).…”

Section: Anatomical Localization Of the Different Conditions On Simentioning

confidence: 99%

“…The x-axes display 11 time points with regard to the TR of 2.5 s, and y-axes represent signal intensity change (in AU). Ferrington and Rowe (1980) further described that Pacinian corpuscles are necessary to project contralaterally into BA 2 (Francis et al, 2000;Gelnar et al, 1998) and a very high stimulation frequency of more than 50 Hz is required to activate Pacinian corpuscles (Chung et al, 2013;Ferrington and Rowe, 1980). Curves of the graph start at the time point of 2.5 s after stimulation.…”

Section: Anatomical Localization Of the Different Conditions On Simentioning

confidence: 99%

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Depicting the inner and outer nose: The representation of the nose and the nasal mucosa on the human primary somatosensory cortex (SI)

Gastl

Brünner

Wiesmann

et al. 2014

Human Brain Mapping

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The nose is important not only for breathing, filtering air, and perceiving olfactory stimuli. Although the face and hands have been mapped, the representation of the internal and external surface of the nose on the primary somatosensory cortex (SI) is still poorly understood. To fill this gap functional magnetic resonance imaging (fMRI) was used to localize the nose and the nasal mucosa in the Brodman areas (BAs) 3b, 1, and 2 of the human postcentral gyrus (PG). Tactile stimulation during fMRI was applied via a customized pneumatically driven device to six stimulation sites: the alar wing of the nose, the lateral nasal mucosa, and the hand (serving as a reference area) on the left and right side of the body. Individual representations could be discriminated for the left and right hand, for the left nasal mucosa and left alar wing of the nose in BA 3b and BA 1 by comparing mean activation maxima and Euclidean distances. Right-sided nasal conditions and conditions in BA 2 could further be separated by different Euclidean distances. Regarding the alar wing of the nose, the results concurred with the classic sensory homunculus proposed by Penfield and colleagues. The nasal mucosa was not only determined an individual and bilateral representation, its position on the somatosensory cortex is also situated closer to the caudal end of the PG compared to that of the alar wing of the nose and the hand. As SI is commonly activated during the perception of odors, these findings underscore the importance of the knowledge of the representation of the nasal mucosa on the primary somatosensory cortex, especially for interpretation of results of functional imaging studies about the sense of smell.

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Section: Anatomical Localization Of the Different Conditions On Simentioning

confidence: 94%

Section: Anatomical Localization Of the Different Conditions On Simentioning

confidence: 99%

Section: Anatomical Localization Of the Different Conditions On Simentioning

confidence: 99%

See 1 more Smart Citation

Depicting the inner and outer nose: The representation of the nose and the nasal mucosa on the human primary somatosensory cortex (SI)

Gastl

Brünner

Wiesmann

et al. 2014

Human Brain Mapping

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show abstract

“…SI-and SII-mediated processes), two different stimulation frequencies were used. Frequencies were chosen based on the observation that SI and SII cortical regions vary in their dominance to rather process low or high frequencies: whereas "flutter sensations" between 10 and 50 Hz are predominantly processed in the SI area, frequencies ranging from 100 to 400 Hz result in stronger activation of the SII cortex [28][29][30][31] . To trigger dominant SI activation, a 40 Hz vibro-tactile stimulation was used.…”

Section: Participantsmentioning

confidence: 99%

Low and high stimulation frequencies differentially affect automated response selection in the superior parietal cortex – implications for somatosensory area processes

Friedrich

Beste

2020

Sci Rep

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Response inhibition as a central facet of executive functioning is no homogeneous construct.Interference inhibition constitutes a subcomponent of response inhibition and refers to inhibitory control over responses that are automatically triggered by irrelevant stimulus dimensions as measured by the Simon task. While there is evidence that the area-specific modulation of tactile information affects the act of action withholding, effects in the context of interference inhibition remain elusive. We conducted a tactile version of the Simon task with stimuli designed to be predominantly processed in the primary (40 Hz) or secondary (150 Hz) somatosensory cortex. On the basis of EEG recordings, we performed signal decomposition and source localization. Behavioral results reveal that response execution is more efficient when sensory information is mainly processed via SII, compared to SI sensory areas during non-conflicting trials. When accounting for intermingled coding levels by temporally decomposing EEG data, the results show that experimental variations depending on sensory areaspecific processing differences specifically affect motor and not sensory processes. Modulations of motor-related processes are linked to activation differences in the superior parietal cortex (BA7). It is concluded that the Sii cortical area supporting cognitive preprocessing of tactile input fosters automatic tactile information processing by facilitating stimulus-response mapping in posterior parietal regions. open Scientific RepoRtS | (2020) 10:3954 | https://doi.org/10.1038/s41598-020-61025-y www.nature.com/scientificreports www.nature.com/scientificreports/ assignment, one stimulus at once is presented either on the left or the right 1,7,8 . In other words, stimulus presentation is lateralized, whereas a non-spatial stimulus feature requires a lateralized response 9 . Although stimulus location is not relevant, it still interferes with the correct response, which was assigned to the stimulus at the beginning of the experiment 1 . Correspondence between the response location associated with the task-relevant stimulus feature and the task-irrelevant location of the presented stimulus (i.e. congruent trials) results in better performance than non-correspondence (i.e. incongruent trials) 8,10 . Also in tactile versions of the Simon task using low and high intensities 11,12 or continuous and pulsed stimulation 13 as relevant stimulus features, this "Simon effect" can be found 8 . Processes occurring in the Simon task are often described by dual-process models 8,13-15 , which assume an occurrence of automatic and controlled processes 10,16,17 . According to these models, an "unconditionally automatic" (task-irrelevant) process, also called "direct route", is triggered by stimuli in a way that facilitates responses directly corresponding to their location. A second, rather controlled process, running in parallel, constitutes deliberate/controlled response selection based on conditions defined by the task-relevant stimulus-response assignment ...

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“…Studies have shown that the left and right S2 cortices have reciprocal connections and the majority of S2 neurons display bilateral receptive fields (Burton & Carlson, 1986). Little is known how S2 and the parietal cortex process tactile sensory information, in particular the frequency information of a tactile stimulus, but a recent study suggests that S2 plays an important role in processing higher-frequency vibrotactile information compared with S1, which has a greater role in responding to low-frequency flutter, and that S2 plays a greater role in attentional modulation than S1 (Chung et al, 2013). Eickhoff, Grefkes, Zilles, and Fink (2007) suggested that S2 exhibits two body maps with mirror reversal in the somatotopic arrangement.…”

Section: Studies Of Higher-level Representations (S2 Parietal Cortexmentioning

confidence: 99%

Somatosensory Processing

Schluppeck¹,

Francis²

2015

Brain Mapping

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Frequency-dependent patterns of somatosensory cortical responses to vibrotactile stimulation in humans: A fMRI study

Cited by 43 publications

References 56 publications

Depicting the inner and outer nose: The representation of the nose and the nasal mucosa on the human primary somatosensory cortex (SI)

Depicting the inner and outer nose: The representation of the nose and the nasal mucosa on the human primary somatosensory cortex (SI)

Low and high stimulation frequencies differentially affect automated response selection in the superior parietal cortex – implications for somatosensory area processes

Somatosensory Processing

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