The chart shows the distribution of publications by all Research.com ranked scientists in the field of Mathematics in 2026. The highlighted bar marks where Sigurdur Helgason sits on this spectrum.
This scientist: 134 publications — 29th percentile
29% of scientists in this discipline score the same or lower.
The last bar groups every scientist with 537 publications or more.
The chart shows the D-index (discipline H-index) distribution of Mathematics scientists ranked by Research.com in 2026. The highlighted bar marks where Sigurdur Helgason sits on this spectrum.
This scientist: 33 D-Index — 17th percentile
17% of scientists in this discipline score the same or lower.
The last bar groups every scientist with 86 D-Index or more.
Sigurdur Helgason was affiliated with MIT in the United States. Their research focused primarily on fields such as Medicine, Neuroscience, and Psychology, with additional work in subfields including Physiology, Cognitive Neuroscience, and Experimental and Cognitive Psychology.
The scientist's research encompassed topics related to obstructive sleep apnea, sleep and wakefulness, and sleep-related disorders.
Among the published work, Sigurdur Helgason contributed to a paper titled "Evaluating the feasibility of out-of-center sleep testing (OCST), level II polysomnography (PSG) - The experience of a Canadian service provider," published in 2024 in the journal Sleep Medicine.
Frequent co-authors who collaborated with Sigurdur Helgason included:
Their work was published notably in the journal Sleep Medicine, reflecting a concentration within sleep-related research domains.
Throughout their career, Sigurdur Helgason received several fellowships, including:
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Sigurdur Helgason;Kenneth Johnson
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Carl B. Allendoerfer;Sigurdur Helgason
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