Spectrum estimation and the Fourier transform in imaging and spectroscopy

Exaggerated anticipatory anxiety is common in social anxiety disorder (SAD). Neuroimaging studies have revealed altered neural activity in response to social stimuli in SAD, but fewer studies have examined neural activity during anticipation of feared social stimuli in SAD. The current study examined the time course and magnitude of activity in threat processing brain regions during speech anticipation in socially anxious individuals and healthy controls (HC). Method Participants (SAD n = 58; HC n = 16) underwent functional magnetic resonance imaging (fMRI) during which they completed a 90s control anticipation task and 90s speech anticipation task.

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Section: Identification Of Complex Carbohydrate Structures From Th E mentioning

confidence: 99%

“……”

Section: Identification Of Complex Carbohydrate Structures From Th E mentioning

confidence: 99%

Intelligent Control Systems Using Soft Computing Methodologies

Zilouchian¹,

Jaṁshidi²

2001

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Exaggerated anticipatory anxiety is common in social anxiety disorder (SAD). Neuroimaging studies have revealed altered neural activity in response to social stimuli in SAD, but fewer studies have examined neural activity during anticipation of feared social stimuli in SAD. The current study examined the time course and magnitude of activity in threat processing brain regions during speech anticipation in socially anxious individuals and healthy controls (HC). Method Participants (SAD n = 58; HC n = 16) underwent functional magnetic resonance imaging (fMRI) during which they completed a 90s control anticipation task and 90s speech anticipation task.

“…The concept of joint time-frequency representations is best illustrated by musical scores, which represent the temporal sequence of individual notes or chords. Different families of algorithms exist for the generation of time-frequency distributions from time-domain data, such as the Wigner-Ville approach [16][17][18][19][20][21][22][23], short-time Fourier transform (STFT, spectrogram representation) [11,12], wavelet transforms [21,[24][25][26][27] and the von Neumann representation [15,28].…”

Section: Introductionmentioning

confidence: 99%

Visualization and analysis of modulated pulses in magnetic resonance by joint time–frequency representations

Kocher

¹

,

Heydenreich

²

,

Glaser

³

2014

Journal of Magnetic Resonance

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Exaggerated anticipatory anxiety is common in social anxiety disorder (SAD). Neuroimaging studies have revealed altered neural activity in response to social stimuli in SAD, but fewer studies have examined neural activity during anticipation of feared social stimuli in SAD. The current study examined the time course and magnitude of activity in threat processing brain regions during speech anticipation in socially anxious individuals and healthy controls (HC). Method Participants (SAD n = 58; HC n = 16) underwent functional magnetic resonance imaging (fMRI) during which they completed a 90s control anticipation task and 90s speech anticipation task.

Computer processing techniques in high-resolution NMR

Jeannerat¹

2002

Annual Reports on NMR Spectroscopy

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Exaggerated anticipatory anxiety is common in social anxiety disorder (SAD). Neuroimaging studies have revealed altered neural activity in response to social stimuli in SAD, but fewer studies have examined neural activity during anticipation of feared social stimuli in SAD. The current study examined the time course and magnitude of activity in threat processing brain regions during speech anticipation in socially anxious individuals and healthy controls (HC). Method Participants (SAD n = 58; HC n = 16) underwent functional magnetic resonance imaging (fMRI) during which they completed a 90s control anticipation task and 90s speech anticipation task.

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