Learning by heart : cardiac cycle reveals an effective time window for learning
Waselius, T., Wikgren, J., Halkola, H., Penttonen, M., & Nokia, M. (2018). Learning by heart : cardiac cycle reveals an effective time window for learning. Journal of Neurophysiology, 120(2), 830-838. https://doi.org/10.1152/jn.00128.2018
Julkaistu sarjassa
Journal of NeurophysiologyPäivämäärä
2018Oppiaine
PsykologiaMonitieteinen aivotutkimuskeskusHyvinvoinnin tutkimuksen yhteisöPsychologyCentre for Interdisciplinary Brain ResearchSchool of WellbeingTekijänoikeudet
© 2018 the American Physiological Society
Cardiac cycle phase is known to modulate processing of simple sensory information. This effect of the heartbeat on brain function is likely exerted via baroreceptors, the neurons sensitive for changes in blood pressure. From baroreceptors, the signal is conveyed all the way to the forebrain and the medial prefrontal cortex. In the two experiments reported, we examined whether learning, as a more complex form of cognition, can be modulated by the cardiac cycle phase. Human participants (experiment 1) and rabbits (experiment 2) were trained in trace eyeblink conditioning while neural activity was recorded. The conditioned stimulus was presented contingently with either the systolic or diastolic phase of the cycle. The tone used as the conditioned stimulus evoked amplified responses in both humans (electroencephalogram from “vertex,” Cz) and rabbits (hippocampal CA1 local field potential) when its onset was timed at systole. In humans, the cardiac cycle phase did not affect learning, but rabbits trained at diastole learned significantly better than those trained at a random phase of the cardiac cycle. In summary, our results suggest that neural processing of external stimuli and also learning can be affected by targeting stimuli on the basis of cardiac cycle phase. These findings might be useful in applications aimed at maximizing or minimizing the effects of external stimulation.
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American Physiological SocietyISSN Hae Julkaisufoorumista
0022-3077Asiasanat
Julkaisu tutkimustietojärjestelmässä
https://converis.jyu.fi/converis/portal/detail/Publication/28047255
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Suomen AkatemiaRahoitusohjelmat(t)
Akatemiahanke, SALisätietoja rahoituksesta
The work was supported by Academy of Finland Grant 286384 (to M. S. Nokia).Lisenssi
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