The experimental MEG and fMRI data from sixteen participants with average age 15.8 years were described in our previous study and a detailed description of the data and paradigms can be found in (Wang et al., 2012 (link)). MEG data were acquired using a 275-channel whole head MEG system (VSM Med-Tech Ltd., Port Coquitlam, BC, Canada) sampled at 6 kHz and fMRI data were acquired on a Philips Achieva 3-Tesla MRI scanner with Dual Quasar gradients (Philips Medical Systems, Best, The Netherlands). During the scan, the participants performed a narrative comprehension task including three conditions (story listening, question answering, and pure tone listening). In the current study, we only focused on the contrast of story listening versus tone listening. The group fMRI results were used as spatial priors for MEG source reconstructions (see Fig. 2 ). Three clusters that survived the thresholding (height threshold T = 5.78 and extent threshold k = 50 voxels, p < 0.005 Family-Wise Error rate corrected) were projected onto the template cortical mesh in Fig. 2-1 and correspond approximately to left inferior gyrus (IFG) and bilateral superior temporal gyrus (STG).
Dual quasar gradients
Manufactured by Philips
The Dual Quasar gradients is a specialized laboratory equipment designed for scientific research and experimentation. It features two independent gradient modules that can be controlled separately, allowing for precise and flexible gradient generation. The core function of this product is to provide researchers with the ability to create and control gradient conditions, which are essential for a variety of applications in fields such as chromatography, flow chemistry, and microfluidics.
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6 protocols using dual quasar gradients
1
Multimodal Neuroimaging of Story Comprehension
2
Multisite Diffusion Tensor Imaging Protocol
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Data were collected at three sites. At Cincinnati Children's Hospital Medical Center. DTI data were acquired using a single-shot spin-echo, echo-planar imaging (SE-EPI) sequence on a Philips Achieva 3T MRI scanner with Dual Quasar gradients and transmit/receive quadrature head coil (Philips Medical Systems, Best, The Netherlands). Acquisition parameters were: TR/TE = 9900/98 ms, acquisition matrix = 128 × 128, field of view = 256 × 256 (in-plane resolution = 2 × 2 mm), and slice thickness = 2 mm with no gap. Diffusion images were acquired using gradient encoding applied in 61 non-colinear directions and b = 1000 s/mm2, and seven non-diffusion weighted (T2-weighted, b = 0 s/mm2) uniformly interspersed reference images were denoted by b0. At University of Pittsburgh Medical Center and Case Western Reserve University, DTI data were acquired using Siemens 3T MRI systems with identical imaging protocols and quality-assurance procedures. Quality control and intersite variability measures were used as covariates of no-interest to control for differences between the different sites contributing imaging data for this study (Versace et al., 2015 ).
3
Diffusion Tensor Imaging Acquisition Protocol
4
Multimodal Neuroimaging of Story Comprehension
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The experimental MEG and fMRI data from sixteen participants with average age 15.8 years were described in our previous study and a detailed description of the data and paradigms can be found in (Wang et al., 2012 (link)). MEG data were acquired using a 275-channel whole head MEG system (VSM Med-Tech Ltd., Port Coquitlam, BC, Canada) sampled at 6 kHz and fMRI data were acquired on a Philips Achieva 3-Tesla MRI scanner with Dual Quasar gradients (Philips Medical Systems, Best, The Netherlands). During the scan, the participants performed a narrative comprehension task including three conditions (story listening, question answering, and pure tone listening). In the current study, we only focused on the contrast of story listening versus tone listening. The group fMRI results were used as spatial priors for MEG source reconstructions (see Fig. 2 ). Three clusters that survived the thresholding (height threshold T = 5.78 and extent threshold k = 50 voxels, p < 0.005 Family-Wise Error rate corrected) were projected onto the template cortical mesh in Fig. 2-1 and correspond approximately to left inferior gyrus (IFG) and bilateral superior temporal gyrus (STG).
5
Multimodal Neuroimaging of Language Comprehension
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The experimental MEG and fMRI data from sixteen participants with average age 15.8 years were described in our previous study and a detailed description of the data and paradigms can be found in (Wang et al., 2012) (link). MEG data were acquired using a 275-channel whole head MEG system (VSM Med-Tech Ltd., Port Coquitlam, BC, Canada) sampled at 6 KHz and fMRI data were acquired on a Philips Achieva 3-Tesla MRI scanner with Dual Quasar gradients (Philips Medical Systems, Best, The Netherlands). During the scan, the participants performed a narrative comprehension task including three conditions (story listening, question answering, and pure tone listening). 1 In the current study, we only focused on the contrast of story listening versus tone listening. The group fMRI results were used as spatial priors for MEG source reconstructions (see Fig. 2). Three clusters that survived the thresholding (height threshold T = 5.78 and extent threshold k = 50 voxels, p < 0.005 Family-Wise Error rate corrected) were projected onto the template cortical mesh in Fig. 2-1 and correspond approximately to left inferior gyrus (IFG) and bilateral superior temporal gyrus (STG).
6
Multimodal Neuroimaging of Language Comprehension
Check if the same lab product or an alternative is used in the 5 most similar protocols
+ Expand
The experimental MEG and fMRI data from sixteen participants with average age 15.8 years were described in our previous study and a detailed description of the data and paradigms can be found in (Wang et al., 2012) (link). MEG data were acquired using a 275-channel whole head MEG system (VSM Med-Tech Ltd., Port Coquitlam, BC, Canada) sampled at 6 KHz and fMRI data were acquired on a Philips Achieva 3-Tesla MRI scanner with Dual Quasar gradients (Philips Medical Systems, Best, The Netherlands). During the scan, the participants performed a narrative comprehension task including three conditions (story listening, question answering, and pure tone listening). 1 In the current study, we only focused on the contrast of story listening versus tone listening. The group fMRI results were used as spatial priors for MEG source reconstructions (see Fig. 2). Three clusters that survived the thresholding (height threshold T = 5.78 and extent threshold k = 50 voxels, p < 0.005 Family-Wise Error rate corrected) were projected onto the template cortical mesh in Fig. 2-1 and correspond approximately to left inferior gyrus (IFG) and bilateral superior temporal gyrus (STG).
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