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Mikko Nyman

2 papers in the library · 92 citations · publishing 2021-2023

Papers

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Decreased Thalamic Activity Is a Correlate for Disconnectedness during Anesthesia with Propofol, Dexmedetomidine and Sevoflurane But Not S-Ketamine.

The Journal of neuroscience : the official journal of the Society for Neuroscience June 28, 2023 Oskari Kantonen, Lauri Laaksonen, Michael Alkire et al.

Establishing the neural mechanisms responsible for the altered global states of consciousness during anesthesia and dissociating these from other drug-related effects remains a challenge in consciousness research. We investigated differences in brain activity between connectedness and disconnectedness by administering various anesthetics at concentrations designed to render 50% of the subjects...

Foundations of Human Consciousness: Imaging the Twilight Zone.

The Journal of neuroscience : the official journal of the Society for Neuroscience February 24, 2021 Annalotta Scheinin, Oskari Kantonen, Michael Alkire et al. 92 citations

What happens in the brain when conscious awareness of the surrounding world fades? We manipulated consciousness in two experiments in a group of healthy males and measured brain activity with positron emission tomography. Measurements were made during wakefulness, escalating and constant levels of two anesthetic agents (experiment 1, n = 39), and during sleep-deprived wakefulness and non-rapid...