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    Long-term physical activity modulates brain processing of somatosensory stimuli: Evidence from young male twins

    Identifiers
    URI: http://hdl.handle.net/11556/157
    ISSN: 0301-0511
    DOI: 10.1016/j.biopsycho.2016.02.001
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    Author/s
    Tarkka, Ina M.; Savić, Andrej; Pekkola, Elina; Rottensteiner, Mirva; Leskinen, Tuija; [et al.]
    Date
    2016-05
    Keywords
    Human electrophysiology
    Precognitive brain function
    Somatosensory mismatch response
    Somatosensory cortex
    Physical exercise
    Abstract
    Leisure-time physical activity is a key contributor to physical and mental health. Yet the role of physical activity in modulating cortical function is poorly known. We investigated whether precognitive sensory brain functions are associated with the level of physical activity. Physical activity history (3-yr-LTMET), physiological measures and somatosensory mismatch response (sMMR) in EEG were recorded in 32 young healthy twins. In all participants, 3-yr-LTMET correlated negatively with body fat%, r = −0.77 and positively with VO2max, r = 0.82. The fat% and VO2max differed between 15 physically active and 17 inactive participants. Trend toward larger sMMR was seen in inactive compared to active participants. This finding was significant in a pairwise comparison of 9 monozygotic twin pairs discordant for physical activity. Larger sMMR reflecting stronger synchronous neural activity may reveal diminished gating of precognitive somatosensory information in physically inactive healthy young ...
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