The Experts below are selected from a list of 15 Experts worldwide ranked by ideXlab platform

Heikki Lyytinen - One of the best experts on this subject based on the ideXlab platform.

  • Brain Slow Waves preceding time‐locked visuo‐motor performance
    Journal of sports sciences, 1993
    Co-Authors: Niilo Konttinen, Heikki Lyytinen
    Abstract:

    According to previous findings (Konttinen and Lyytinen, 1992), the Slow Brain negativity preceding the trigger pull in rifle‐shooting tends to be decreased in successful shots among experienced marksmen, whereas no such pattern is found among inexperienced subjects. This effect was interpreted as resulting mainly from optimal arousal. However, another explanation is examined here. The aim of the experiment was to investigate Slow electrocortical changes associated with motor regulation and visual aiming related to shooting performance. Four variations on a shooting task were used, in which the visual and motor components were contrasted. Motor activity related to gun stabilization was found to be associated with Slow‐Wave positivity, whereas visual aiming was manifested as Slow negativity. The results offer some basis for interpreting the individual Slow Brain Wave patterns that predict shooting performance.

Niilo Konttinen - One of the best experts on this subject based on the ideXlab platform.

  • Brain Slow Waves preceding time‐locked visuo‐motor performance
    Journal of sports sciences, 1993
    Co-Authors: Niilo Konttinen, Heikki Lyytinen
    Abstract:

    According to previous findings (Konttinen and Lyytinen, 1992), the Slow Brain negativity preceding the trigger pull in rifle‐shooting tends to be decreased in successful shots among experienced marksmen, whereas no such pattern is found among inexperienced subjects. This effect was interpreted as resulting mainly from optimal arousal. However, another explanation is examined here. The aim of the experiment was to investigate Slow electrocortical changes associated with motor regulation and visual aiming related to shooting performance. Four variations on a shooting task were used, in which the visual and motor components were contrasted. Motor activity related to gun stabilization was found to be associated with Slow‐Wave positivity, whereas visual aiming was manifested as Slow negativity. The results offer some basis for interpreting the individual Slow Brain Wave patterns that predict shooting performance.

Michel J.a.m. Van Putten - One of the best experts on this subject based on the ideXlab platform.

  • Neural dynamics during anoxia and the "Wave of death"
    PloS one, 2011
    Co-Authors: Bas-jan Zandt, Bennie Ten Haken, J. Gert Van Dijk, Michel J.a.m. Van Putten
    Abstract:

    Recent experiments in rats have shown the occurrence of a high amplitude Slow Brain Wave in the EEG approximately 1 minute after decapitation, with a duration of 5–15 s (van Rijn et al, PLoS One 6, e16514, 2011) that was presumed to signify the death of Brain neurons. We present a computational model of a single neuron and its intra- and extracellular ion concentrations, which shows the physiological mechanism for this observation. The Wave is caused by membrane potential oscillations, that occur after the cessation of activity of the sodium-potassium pumps has lead to an excess of extracellular potassium. These oscillations can be described by the Hodgkin-Huxley equations for the sodium and potassium channels, and result in a sudden change in mean membrane voltage. In combination with a high-pass filter, this sudden depolarization leads to a Wave in the EEG. We discuss that this process is not necessarily irreversible

Bas-jan Zandt - One of the best experts on this subject based on the ideXlab platform.

  • Neural dynamics during anoxia and the "Wave of death"
    PloS one, 2011
    Co-Authors: Bas-jan Zandt, Bennie Ten Haken, J. Gert Van Dijk, Michel J.a.m. Van Putten
    Abstract:

    Recent experiments in rats have shown the occurrence of a high amplitude Slow Brain Wave in the EEG approximately 1 minute after decapitation, with a duration of 5–15 s (van Rijn et al, PLoS One 6, e16514, 2011) that was presumed to signify the death of Brain neurons. We present a computational model of a single neuron and its intra- and extracellular ion concentrations, which shows the physiological mechanism for this observation. The Wave is caused by membrane potential oscillations, that occur after the cessation of activity of the sodium-potassium pumps has lead to an excess of extracellular potassium. These oscillations can be described by the Hodgkin-Huxley equations for the sodium and potassium channels, and result in a sudden change in mean membrane voltage. In combination with a high-pass filter, this sudden depolarization leads to a Wave in the EEG. We discuss that this process is not necessarily irreversible

Bennie Ten Haken - One of the best experts on this subject based on the ideXlab platform.

  • Neural dynamics during anoxia and the "Wave of death"
    PloS one, 2011
    Co-Authors: Bas-jan Zandt, Bennie Ten Haken, J. Gert Van Dijk, Michel J.a.m. Van Putten
    Abstract:

    Recent experiments in rats have shown the occurrence of a high amplitude Slow Brain Wave in the EEG approximately 1 minute after decapitation, with a duration of 5–15 s (van Rijn et al, PLoS One 6, e16514, 2011) that was presumed to signify the death of Brain neurons. We present a computational model of a single neuron and its intra- and extracellular ion concentrations, which shows the physiological mechanism for this observation. The Wave is caused by membrane potential oscillations, that occur after the cessation of activity of the sodium-potassium pumps has lead to an excess of extracellular potassium. These oscillations can be described by the Hodgkin-Huxley equations for the sodium and potassium channels, and result in a sudden change in mean membrane voltage. In combination with a high-pass filter, this sudden depolarization leads to a Wave in the EEG. We discuss that this process is not necessarily irreversible