K
Kenneth K. Kwong
Researcher at Harvard University
Publications - 171
Citations - 28028
Kenneth K. Kwong is an academic researcher from Harvard University. The author has contributed to research in topics: Visual cortex & Magnetic resonance imaging. The author has an hindex of 66, co-authored 167 publications receiving 26652 citations. Previous affiliations of Kenneth K. Kwong include McLean Hospital & Ottawa Hospital Research Institute.
Papers
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Journal ArticleDOI
Dynamic magnetic resonance imaging of human brain activity during primary sensory stimulation.
Kenneth K. Kwong,John W. Belliveau,David A. Chesler,Inna E. Goldberg,Robert M. Weisskoff,Brigitte P. Poncelet,David N. Kennedy,Bernice E. Hoppel,Mark S. Cohen,Robert Turner,Hong-Ming Cheng,Thomas J. Brady,Bruce R. Rosen +12 more
TL;DR: In this paper, a series of images were acquired continuously with the same imaging pulse sequence (either gradient echo or spin-echo inversion recovery) during task activation, and a significant increase in signal intensity (paired t test; P less than 0.001) of 1.8% +/- 0.9% was observed in the primary visual cortex (V1) of seven normal volunteers.
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Borders of multiple visual areas in humans revealed by functional magnetic resonance imaging
Martin I. Sereno,Anders M. Dale,Anders M. Dale,J. B. Reppas,Kenneth K. Kwong,John W. Belliveau,Thomas J. Brady,Bruce R. Rosen,Roger B. H. Tootell +8 more
TL;DR: Cortical magnification factor curves for striate and extrastriate cortical areas were determined, which showed that human visual areas have a greater emphasis on the center-of-gaze than their counterparts in monkeys.
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Object-related activity revealed by functional magnetic resonance imaging in human occipital cortex.
Rafael Malach,J.B. Reppas,Randall R. Benson,Kenneth K. Kwong,H. Jiang,W.A. Kennedy,Patrick J. Ledden,Thomas J. Brady,Bruce R. Rosen,Roger B. H. Tootell +9 more
TL;DR: The lateral occipital complex (LO) showed preferential activation to images of objects, compared to a wide range of texture patterns as mentioned in this paper, suggesting that objects varying widely in their recognizability (e.g., famous faces, common objects, and unfamiliar three-dimensional abstract sculptures) activated it to a similar degree.
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Functional analysis of human MT and related visual cortical areas using magnetic resonance imaging
Roger B. H. Tootell,J.B. Reppas,Kenneth K. Kwong,Rafael Malach,Richard T. Born,Thomas J. Brady,Bruce R. Rosen,John W. Belliveau +7 more
TL;DR: FMRI activity in human MT does in fact decrease at and near individually measured equiluminance, and area MT has a much higher contrast sensitivity than that in several other areas, including primary visual cortex (V1).
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Mechanisms of migraine aura revealed by functional MRI in human visual cortex
Nouchine Hadjikhani,Margarita Sanchez del Rio,Ona Wu,Denis Schwartz,Dick Bakker,Bruce Fischl,Kenneth K. Kwong,F. Michael Cutrer,Bruce R. Rosen,Roger B. H. Tootell,A. Gregory Sorensen,Michael A. Moskowitz +11 more
TL;DR: High-field functional MRI with near-continuous recording during visual aura in three subjects observed blood oxygenation level-dependent signal changes that strongly suggest that an electrophysiological event such as CSD generates the aura in human visual cortex.