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On the Detection of Direct Directed Information Flow in fMRI

IEEE Journal of Selected Topics in Signal Processing, 2008
To infer interactions from functional magnetic resonance imaging (fMRI) data, structural equation modeling (SEM) as well as dynamic causal modeling (DCM) has been suggested. Directed partial correlation (dPC) is a measure which detects Granger causality in multivariate systems. To demonstrate the strengths as well as the limitations of directed partial
Wolfgang Mader 0002   +7 more
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Direct Detection of the Vasopressin Precursor

Endocrine Research Communications, 1980
Cysteine-rich proteins were isolated from the hypothalamo-neurohypophyseal tract of dogs by high performance molecular weight chromatography. Trypsin digestion of these proteins produced a low molecular weight (LMW) peptide which was identified, by chemical and immunological assays, as (Arg8) vasopressin.
K A, Gruber, M, Morris
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Advanced Direct Detection Schemes

Optical Fiber Communication Conference (OFC) 2021, 2021
In this tutorial, we review various advanced direct detection schemes to bridge the gap between conventional direct and coherent detection. We show such schemes may play an important role for future ultrahigh-speed short-reach applications.
William Shieh, Honglin Ji
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Decoupled direction finding: detection

Proceedings of the 1998 IEEE International Conference on Acoustics, Speech and Signal Processing, ICASSP '98 (Cat. No.98CH36181), 2002
Antenna arrays are likely to be an important feature of future mobile communication systems. With an antenna array, mobile users can be separated by a spatial filtering procedure allowing several users on the same carrier frequency. The uplink part (mobile to base) not only can, but is better solved without using any spatial knowledge in terms of ...
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